Mars。 Your Guide to Mars

Overview

0 South of the star Zubenelhakrabi Lib or Gamma Librae, mag. As bigger telescopes were used, fewer long, straight canali were observed. 002, much less than that of Earth today. [ ] In the second half of 2008, Mars UK reduced the weight of regular bars from 62. The nougat was made lighter, the chocolate on top became thinner, and the overall weight of the bar was reduced slightly. Archived from on 5 January 2011. Today, there are 8 missions operating on or around the planet, with 3 more due to arrive in 2021 to kick off the next generation of exploration. Physical characteristics Mars is approximately half the diameter of Earth, with a surface area only slightly less than the total area of Earth's dry land. 8809 Earth years, or 1 year, 320 days, and 18. The feeling is constantly growing on me that I had been the first to hear the greeting of one planet to another. The duration of this retrograde motion lasts for about 72 days, and Mars reaches its peak luminosity in the middle of this motion. These were probably deposited by the atmosphere over long spans of time. Subsurface water flow and may play important subsidiary roles in some networks, but precipitation was probably the root cause of the incision in almost all cases. 8 , which on older star maps was depicted as the top of Scales' balancing point. A number of martian rocks have fallen to the surface of Earth over the eons, providing scientists a rare opportunity to study Martian rocks without having to leave our planet. They tend to occur when Mars is closest to the Sun, and have been shown to increase the global temperature. Radar data from and the MRO show large quantities of ice at both poles July 2005 and at middle latitudes November 2008. Despite the thin air, Martian breezes can gust up to 60 miles an hour, kicking up dust that fuels huge dust storms and massive fields of alien sand dunes. But for several reasons, seasons on Mars are different from those on Earth. The volume of water ice in the south polar ice cap, if melted, would be sufficient to cover the planetary surface to a depth of 11 metres 36 ft. These robotic explorers have found lots of evidence that Mars was much wetter and warmer, with a thicker atmosphere, billions of years ago. Mars may have moons smaller than 50 to 100 metres 160 to 330 ft in diameter, and a dust ring is predicted to exist between Phobos and Deimos. The paths of Uranus and Neptune are also shown for reference detailed finder charts for these planets for the current year can be found on the and pages. The regular 58 g single bar contains 260 calories. However, over hundreds of millions of years these molecular fossils on Mars are subject to being destroyed or transformed to the point where they may no longer be recognized as biosignatures. Although I could not decipher their meaning, it was impossible for me to think of them as having been entirely accidental. Mars Active Energy Drink• These before and after images of the same site were taken on the Martian afternoons of 27 and 28 March 2012 respectively. The only of Mars by Venus observed was that of 13 October 1590, seen by at. These maps are available online; for example, at. 2 mi below the rim, and is covered by a 1. At some point in the distant past, the red planet gained its two small and irregularly shaped moons, Phobos and Deimos. Image credit: NASA In 2003, Mars passed closer to Earth than anytime in that past 60,000 years. The slogan "Pleasure you can't measure" was intended to appeal more to women and youths. Befitting the Red Planet's bloody color, the Romans named it after their god of war. It is just a little longer than a day on Earth. The massive volcano, which is about 370 miles 600 km in diameter, is wide enough to cover the state of New Mexico. The NASA Authorization Act of 2017 directed NASA to get humans near or on the surface of Mars by the early 2030s. The next step in Mars exploration is. The NASA Viking landers of the mid-1970s—the first to land on Mars successfully—tested the Martian soil to look for possible signs of life. The Planetary Society advocates for these recommendations and supports scientifically-motivated guidelines for responsible planetary protection. The means liquid water likely cannot exist on the Martian surface for any length of time. Although Mars's moon appears about one-third the of the on Earth, appears more or less star-like, looking only slightly brighter than Venus does from Earth. This image from Gale crater in 2018 prompted speculation that some shapes were worm-like fossils, but they were geological formations probably formed under water. A number of authors have suggested that their formation process involves liquid water, probably from melting ice, although others have argued for formation mechanisms involving carbon dioxide frost or the movement of dry dust. The streaks are dark at first and get lighter with age. At this early stage in the apparition, Mars appears as a feeble, pale-orange 'star', shining about as bright as the star Castor Gem or Alpha Geminorum, mag. It may take on a hue due to particles suspended in it. was the first spacecraft to visit Mars; launched by on 28 November 1964, it made its closest approach to the planet on 15 July 1965. 0 South of the double star Porrima Vir or Gamma Virginis, mag. are comparable to those of Earth, because the as well as the tilt of the relative to the are similar. Natura• Finding fossils preserved from early Mars might tell us that life once flourished on this planet. The core is surrounded by a silicate that formed many of the and volcanic features on the planet, but it appears to be dormant. For more details on these and conjunctions involving other planets, see the planetary conjunctions section. Small quantities of and detected by Mars orbiters are both claimed to be possible evidence for life, as these would quickly break down in the Martian atmosphere. But instead suggest that they could have formed from the debris flung up from Mars after a huge impact long ago. Mars Biscuits Australia and the UK — a biscuit with Mars topping• Mars Loaded — Australia — introduced January 2014. Most often this requires the orbit of a planet to lie within the , which for the Sun extends from just beyond Venus to about the of Mars. NASA currently has three spacecraft in orbit, and it has one rover and one lander on the surface. This process is rapid, observed happening in the space of a few days, weeks or months, a rate of change rather unusual in geology — especially for Mars. Main article: Of all the planets in the Solar System, the seasons of Mars are the most Earth-like, due to the similar tilts of the two planets' rotational axes. The United States and Soviet Union began sending robotic probes to Mars in the 1960s. The Phoenix lander directly sampled water ice in shallow Martian soil on 31 July 2008. In different cultures, Mars represents masculinity and youth. " — United Kingdom a full-page advertisement placed in the official Guide Book for the in 2000 Current [ ]• How did Mars go from a potential life-supporting oasis to a cold, dry desert? During an observation in 1909 by with an 84 centimetres 33 in telescope, irregular patterns were observed, but no canali were seen. Main article: Once visited the planet during NASA's in the 1960s and 1970s, these concepts were radically broken. After the and spacecraft had returned pictures of Mars as it really is, an apparently lifeless and canal-less world, these ideas about Mars had to be abandoned, and a vogue for accurate, realist depictions of human colonies on Mars developed, the best known of which may be 's. Experiments performed by the lander showed that the Martian soil has a of 7. Localized concentrations of and have been found. "Recharge on Mars" — Canada• Humans have sent more spacecraft to Mars than any other world beyond Earth. 3 Mars, commonly known as Mars Bar, is a variety of produced by. 2 North of the double star Zubenelgenubi 2 Lib or Alpha 2 Librae, mag. The ancient believed that Mars was , the god of war and plague. Accretion early in the history of Mars is plausible, but would not account for a composition resembling asteroids rather than Mars itself, if that is confirmed. The volume of water ice in the south polar ice cap, if melted, would be sufficient to cover the entire planetary surface to a depth of 11 metres 36 ft. The gorges span about 2,500 miles and cut up to 4. by several uncrewed spacecraft. This means that like Earth, the amount of sunlight falling on certain parts of the Red Planet can vary widely during the year, giving Mars seasons. "A Mars a day helps you work, rest and play" — Australia, United Kingdom, Canada, New Zealand• Among the mission's findings was the on the surface of the Red Planet. The commonly accepted theories include that they are dark underlying layers of soil revealed after avalanches of bright dust or. The planet enters Libra itself on December 1st. Mariner 9 and Viking allowed better maps of Mars to be made using the data from these missions, and another major leap forward was the mission, launched in 1996 and operated until late 2006, that allowed complete, extremely detailed maps of the Martian topography, magnetic field and surface minerals to be obtained. Mars passes several other 'newly-named' stars during its 2019-21 apparition, many of which will be discussed below, along with a number of better-known star names proper names for which the IAU have now introduced standardized spellings. Mars has a much longer cycle of eccentricity, with a period of 2. This permanent dry ice cover at the south pole is peppered by , which repeat imaging shows are expanding by meters per year; this suggests that the permanent CO 2 cover over the south pole water ice is degrading over time. He published several books on Mars and life on the planet, which had a great influence on the public. Ptolemy's model and his collective work on astronomy was presented in the multi-volume collection , which became the authoritative treatise on for the next fourteen centuries. Practically Edible, "The Web's Biggest Food Encyclopedia". Technology development for human spaceflight should focus on keeping astronauts physically and psychologically healthy on long-duration spaceflight. Before IAU standardisation in 2017 the name was alternatively spelled Zuben Elakrab. Mars is one of the , and it's the only planet where we've sent rovers to roam the alien landscape. The error was traced back to a Mars, Inc. [ ]• Drawing on an extensive history of launch vehicle and engine development programs, SpaceX has been rapidly iterating on the design of Starship with orbital-flight targeted for 2020. We explore Mars to understand the planet's history and look for evidence of past or even present life. Mars's average distance from the Sun is roughly 230 million km 143 million mi , and its orbital period is 687 Earth days. We don't know how it changed to the cold, dry desert-world it is today. A similar dish has appeared in , where have used Mars bars as fillings. The gas rushing underneath a slab to the site of a geyser carves a spiderweb-like pattern of radial channels under the ice, the process being the inverted equivalent of an erosion network formed by water draining through a single plughole. visible on Mars strongly suggest that liquid water has existed on the planet's surface. 0 to their North-east, Acrab to their NNW and. Such conditions necessarily require the widespread presence of across a large proportion of the surface, for which there is independent mineralogical, sedimentological and geomorphological evidence. The tilt of the Red Planet's axis swings wildly over time because it's not stabilized by a large moon, such as Earth is. David Bowie wasn't the first person to ask "Is there life on Mars? 375 that of Earth Temperature Average 57 degrees F Average -81 degrees F Atmosphere nitrogen, oxygen, argon, others mostly carbon dioxide, some water vapor Number of Moons 1 2. What is sold outside the US as a "Mars bar" is sold in the US as "Milky Way". McVities Mars Mini Rolls• com Copyright jQuery Foundation and other contributors Released under the MIT license. NASA's latest budget submission from the White House would continue record-high funding for planetary science,. Scientists think that Mars may have had a thicker atmosphere early in its history, and data from NASA spacecraft the mission indicate that Mars has lost significant amounts of its atmosphere through time. At a Glance• A cross-section of underground water ice is exposed at the steep slope that appears bright blue in this enhanced-color view from the. It was first manufactured in 1932 in , England by The bar was sold in two different formulations. No partially degraded gullies have formed by weathering and no superimposed impact craters have been observed, indicating that these are young features, possibly still active. Potential sources and sinks of CH 4 on Mars has been detected in the ; it occurs in extended plumes, and the profiles imply that the methane is released from discrete regions. Now the story has gone the world over. They may have been asteroids captured by Mars' gravitational pull, or they may have been formed in orbit around Mars the same time the planet came into existence. Estimates of its lifetime range from 0. Especially noticeable, even at low magnification, are the. Many regions of Mars are flat, low-lying plains. The is home to sheet-like lava flows created about 200. Valles Marineris was formed due to the swelling of the area, which caused the crust in the area of Valles Marineris to collapse. Planetary conjunctions between Mars and Neptune and Mars and Uranus take place on June 12th 2020 and January 21st 2021 respectively marked on the chart by the symbol. 1 mi deep central mound of permanent water ice, up to 60 kilometres 37 mi in diameter. They are tiny next to Earth's moon, and are irregularly shaped, since they lack enough gravity to pull themselves into a more circular form. The widest gets is about 17 miles 27 km , and the widest Deimos gets is roughly 9 miles 15 km. Mars Red Australia — Mars bar with half the fat of a regular Mars bar. After the spacecraft provided extensive imagery of Mars in 1972, a small crater later called , located in the "Middle Bay" or "Meridian Bay" , was chosen by of the for the definition of 0. During this apparition Mars describes a 'zig-zag' shaped path against the stars, quite unlike the Southward-facing loop that it described during the planet's previous apparition in. The dark features were thought to be seas, hence their names , Mare Sirenum and. In October 2016, President renewed United States policy to pursue the goal of sending humans to Mars in the 2030s, and to continue using the as a technology incubator in that pursuit. In that year, the Italian astronomer used a 22 centimetres 8. When the telescope became available, the diurnal parallax of Mars was again measured in an effort to determine the Sun-Earth distance. A long-standing nickname for Mars is the "Red Planet". 7 and easily seen in small telescopes. Astrobiology missions are planned, including the and rovers. Chemical composition Mars likely has a solid core composed of iron, nickel and sulfur. Archived from on 14 October 2007. Large features retain many of the older names, but are often updated to reflect new knowledge of the nature of the features. Large channels emerging from the ends of some canyons and layered sediments within suggest the canyons might once have been filled with liquid water. Both and have detected ionised atmospheric particles trailing off into space behind Mars, and this atmospheric loss is being studied by the orbiter. Three ways you can be a space advocate• In truth, the Romans copied the ancient Greeks, who also named the planet after their god of war, Ares. Planetary astronomer wrote: Mars has become a kind of mythic arena onto which we have projected our Earthly hopes and fears. The highlands of the southern hemisphere, however, are studded with many extinct volcanoes, and the crust there can get up to 62 miles thick. "Mars, haal eruit wat erin zit! The average thickness of the planet's crust is about 50 kilometres 31 mi , with a maximum thickness of 125 kilometres 78 mi. Main article: The history of observations of Mars is marked by the oppositions of Mars, when the planet is closest to Earth and hence is most easily visible, which occur every couple of years. 71 with a standard deviation of 1. At an average distance of 140 million miles, Mars is one of Earth's closest habitable neighbors. Dozens of crewless , including , , and , have been sent to Mars by the , the , , and to study the planet's surface, climate, and geology. Geological activity is still taking place on Mars. The youngest of these channels are thought to have formed as recently as only a few million years ago. The moons of Mars The two , Phobos and Deimos, were discovered by American astronomer Asaph Hall over the course of a week in 1877. Location of subsurface water in , formed by the impact of meteors, which on Earth can preserve signs of life, has been found on the surface of the impact craters on Mars. The Hesperian period is marked by the formation of extensive lava plains. Over time, lighter molecules in the Martian atmosphere escaped under pressure from the solar wind, which affected the atmosphere because Mars does not have a global magnetic field. Pseudo-scientific speculations about the and other enigmatic landmarks spotted by have meant that ancient civilizations continue to be a popular theme in science fiction, especially in film. A comic figure of an intelligent Martian, , appeared in 1948 as a character in the of , and has continued as part of popular culture to the present. Mars rotates on its axis every 24. They invented arithmetic methods for making minor corrections to the predicted positions of the planets. Mars is a with a thin , with surface features reminiscent of the of the and the valleys, deserts and of. The US version of the Mars bar was relaunched in January 2010 and was initially being sold on an exclusive basis through stores. Mars barely gains any significant altitude before disappearing into the brightening dawn twilight. 6 in the constellation of Gemini , the Twins. The tenuous visible on the horizon Mars lost its 4 billion years ago, possibly because of numerous asteroid strikes, so the interacts directly with the Martian , lowering the atmospheric density by stripping away atoms from the outer layer. Since the 1960s, humans have robotically explored Mars more than any other planet beyond Earth. These canali were supposedly long, straight lines on the surface of Mars, to which he gave names of famous rivers on Earth. The bar and the proportions of the main components have changed over the years. This dynamic planet has seasons, polar ice caps, canyons, extinct volcanoes, and evidence that it was even more active in the past. However, the amount of oxygen depends on temperature and pressure; from time to time as the tilt of its rotation axis shifts. In Europe, it is stated that I have been in communication with Mars, and all sorts of exaggerations have spring up. Mars has many distinctive chemical features caused by its position in the Solar System. These findings may be helpful in deciding where best to search for early signs of. The distance at close approach varies between about 54 and 103 million km 34 and 64 million mi due to the planets' orbits, which causes comparable variation in. In 2001, the NASA launched the probe, which discovered vast amounts of water ice beneath the Martian surface, mostly in the upper 3 feet 1 meter. Optical ground-based telescopes are typically limited to resolving features about 300 kilometres 190 mi across when Earth and Mars are closest because of Earth's atmosphere. Mars Delight discontinued in the UK as of 2009• Does life still flourish underground? The albedo map of Mars Mars is a that consists of minerals containing and , , and other elements that typically make up. Main article: The Mount Olympus is an extinct volcano in the vast upland region , which contains several other large volcanoes. 8 and easily resolved in binoculars. The is about minus 80 degrees Fahrenheit minus 60 degrees Celsius , although it can vary from minus 195 F minus 125 C near the poles during the winter to as much as 70 F 20 C at midday near the equator. On 19 October 2014, passed extremely close to Mars, so close that the may have enveloped Mars. 8 , located in the neighbouring constellation of Scorpius , the Scorpion - or more precisely, at the front end of the Scorpion. Scientists have long debated what caused the grooves on Phobos. In May 2018, NASA's lander was launched, along with the twin that flew by Mars and acted as relays during the landing. South polar midsummer ice cap 2000 ; the south cap has a permanent carbon dioxide ice cap mixed with water ice. Internal structure Scientists think that on average, the Martian core is between 1,800 and 2,400 miles in diameter 3,000 and 4,000 km , its mantle is about 900 to 1,200 miles 5,400 to 7,200 km wide and its crust is about 30 miles 50 km thick. It is a standard Mars bar with a chocolate-flavoured nougat, chocolate-flavoured caramel and a slightly darker chocolate coating• To do this on Mars, NASA developed a series of spacecraft with wheels called rovers: Sojourner, Spirit, Opportunity, and Curiosity. Features called recurring slope lineae may have spurts of briny water flowing on the surface, but this evidence is disputed; some scientists argue the hydrogen spotted from orbit in this region may instead indicate briny salts. In this and the tables which follow, the rising and setting directions of the constellations listed can be found by referring to the. In the ancient past, the atmosphere was likely thicker and able to support water flowing on its surface. Rovers have proved to be a highly efficient way to explore the surface, and of the 3 missions launching to Mars in 2020, 2 include a rover. Mars is the fourth planet from the Sun. The Mars rover sampled chemical compounds containing water molecules in March 2007. 5 g each instead of 1 large one. In 2010, to promote England's involvement in the , the background of the UK Mars packaging became the St. North is up ; for the Southern hemisphere view, click. While the Trace Gas Orbiter successfully entered Mars orbit on 19 October 2016, Schiaparelli crashed during its landing attempt. The scene is about 500 meters wide. Detailed scenarios for the metabolism and chemical cycles for a functional ecosystem have been published. One of the larger examples, is 700 kilometres 430 mi long, much greater than the Grand Canyon, with a width of 20 kilometres 12 mi and a depth of 2 kilometres 1. They drive around Mars, taking pictures and measurements. The mission will cache samples for future retrieval and return to Earth. 48-billion-year-old and other related mineral deposits often found around and uncovered in the of. The descent stage of the mission carrying the deploys its parachutes to decelerate itself before landing. Craters larger than 60 km are named for deceased scientists and writers and others who have contributed to the study of Mars. Several missions have visited Mars. His term, which means "channels" or "grooves", was popularly mistranslated in English as "canals". 2 million Earth years, and this overshadows the 96,000-year cycle in the eccentricity graphs. The permanent northern polar ice cap is named , whereas the southern cap is called. " Because liquid water is essential to life on Earth, the search for life elsewhere starts by looking in places where this key ingredient exists or used to exist. In September 2014, India's also reached the Red Planet, making it the fourth nation to successfully enter orbit around Mars. If you stood at the outer edge of Olympus Mons, its summit would lie beyond the horizon. The United Arab Emirates' orbiter was launched on 19 July 2020, and is scheduled to reach Mars in 2021. Other countries are joining the fray, making space exploration more global in the process. On 20 July 1976, performed the first successful landing on the Martian surface. Tests conducted by the Phoenix Mars lander have shown that the soil has an and it contains magnesium, sodium, potassium and chloride. The many failures in Mars exploration probes resulted in a satirical counter-culture blaming the failures on an Earth-Mars "", a "", or a "Great Galactic Ghoul" that feeds on Martian spacecraft. Literature from ancient China confirms that Mars was known by by no later than the fourth century BCE. Exposure of silica-rich dust uncovered by the rover The lander returned data showing Martian soil to be slightly alkaline and containing elements such as , , and. "Who knows? Researchers suspect that much of the low northern plains of the planet were hundreds of meters deep, though this remains controversial. of Mars , 2014 Although Mars has no evidence of a structured global , observations show that parts of the planet's crust have been magnetized, suggesting that alternating polarity reversals of its dipole field have occurred in the past. Some minor eruptions might still occur on the planet. The of the moons Phobos and Deimos are sufficiently smaller than that of the Sun; thus, their partial "eclipses" of the Sun are best considered see and from Mars. The canali were independently found by other astronomers, like and in Nice, using one of the largest telescopes of that time. Throughout history, humans have devastated ecosystems in the act of exploration, both accidentally and intentionally. Mars is a terrestrial planet. The interiors of these caverns may be protected from micrometeoroids, UV radiation, and high energy particles that bombard the planet's surface. 94, which is surpassed only by , the Moon and the Sun. In 1899, while investigating atmospheric radio noise using his receivers in his Colorado Springs lab, inventor observed repetitive signals that he later surmised might have been radio communications coming from another planet, possibly Mars. Both polar caps show spiral troughs, which recent analysis of ice penetrating radar has shown are a result of that spiral due to the. Original source, Scottish 17 December 2004. 's Spirit rover has taken pictures of a greenish-brown, mud-colored landscape with blue-grey rocks and patches of light red sand. Mars also lacks an active plate tectonic system, the geologic engine that drives our active Earth, and is also missing a planetary magnetic field. Mars is scarred by a number of impact craters: a total of 43,000 craters with a diameter of 5 kilometres 3. If validated, this would make the northern hemisphere of Mars the site of an 10,600 by 8,500 kilometres 6,600 by 5,300 mi in size, or roughly the area of Europe, Asia, and Australia combined, surpassing the as the largest impact crater in the Solar System. Related: However, the seasons that Mars experiences are more extreme than Earth's because the Red Planet's elliptical, oval-shaped orbit around the sun is more elongated than that of any of the other major planets. Mars Vanilla — Australia — introduced April 2012. The adjectival form of Latin Mars is Martius, which provides the English words Martian, used as an adjective or for a putative inhabitant of Mars, and Martial, used as an adjective corresponding to Terrestrial for Earth. With the arrival of spring, sunlight warms the subsurface and pressure from subliming CO 2 builds up under a slab, elevating and ultimately rupturing it. Mars also has the largest volcanoes in the solar system, Olympus Mons being one of them. These nutrients are found in soils on Earth, and they are necessary for growth of plants. On 18 March 2013, reported evidence from instruments on the of , likely hydrated , in several including the broken fragments of and as well as in and in other rocks like and. Large valleys are named for the word "Mars" or "star" in various languages; small valleys are named for rivers. "Mars, geeft je energie" Gives you energy — The Netherlands and Flanders, Belgium• Perspective view of Korolev crater shows 1. The latter refers to the effect of the prevalent on Mars's surface, which gives it a distinctive among the astronomical bodies visible to the naked eye. Much of the surface of the southern hemisphere is extremely old, and so has many craters — including the planet's largest, 1,400-mile-wide 2,300 km Hellas Planitia — while that of northern hemisphere is younger and so has fewer craters. Although rovers are highly capable mobile science labs, their tiny, low-power instruments can't compete with larger, heavier versions back on Earth. You can help us advocate for the next great leaps in Mars exploration: sample return and human exploration. In the present day epoch, the orientation of the of Mars is close to the star. "Work-Rest-Play" — UK later "Work-Rest-Play your part"• reflected from Phobos provides strong evidence that the moon is a captured asteroid ,according to astronomers at the University of Padova in Italy. We supported rover testing in the 1990s that helped pave the way for Sojourner, the world's first Mars rover. Mariner 4 detected the weak Martian radiation belt, measured at about 0. Mars Rocks Australia and New Zealand , released by Mars Snackfood Australia in August 2007, is made of chocolate malt nougat topped with a layer of caramel and covered with milk chocolate embedded with "crispies" whose main ingredients are wheat flour and sugar. querySelectorAll "[selected]". Mars does not have a global magnetic field which guides charged particles entering the atmosphere. The wide range in temperatures is due to the thin atmosphere which cannot store much solar heat, the low atmospheric pressure, and the low of Martian soil.。 。

もっと

Casual Clothing, Jeans, Shoes, Workwear, Scrubs Canada

。 。 。

もっと

Mars (chocolate bar)

。 。 。 。 。 。 。

もっと

Casual Clothing, Jeans, Shoes, Workwear, Scrubs Canada

。 。 。 。 。

もっと

Overview

。 。 。 。

もっと

Mars, the red planet: Facts and information

。 。 。 。 。 。 。

もっと

The Position of Mars in the Night Sky: 2019 to 2021

もっと

Mars Facts

。 。 。 。 。

もっと

Your Guide to Mars

。 。 。 。 。

もっと