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300 meteorites
- Scientists have identified more than 300 meteorites that have come from Mars.
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4 days ago · Scientists have identified more than 300 meteorites that have come from Mars. Suspicions about their origin were first raised when meteorites that appeared to be volcanic rocks were found to have ages of about 1.3 billion years instead of the 4.5 billion years of all other meteorites.
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2 days ago · FULL STORY. If liquid water exists today on Mars, it may be too deep underground to detect with traditional methods used on Earth. But listening to earthquakes that occur on Mars -- or marsquakes ...
1 day ago · Meteorites. As of 2018, there are 224 known Martian meteorites (some of which were found in several fragments). These are valuable because they are the only physical samples of Mars available to Earth-bound laboratories.
2 days ago · Like Earth, Mars has clouds, winds, a roughly 24-hour day, seasonal weather patterns, polar ice caps, volcanoes, canyons, and other familiar features. There are intriguing clues that billions of years ago Mars was even more Earth-like than today, with a denser, warmer atmosphere and much more water—rivers, lakes, flood channels, and perhaps ...
- Mars is less than 56 million km (35 million miles) from Earth at its closest approach, but it recedes to almost 400 million km (250 million miles)...
- Mars is the second smallest planet in the solar system, only larger than Mercury and slightly more than half the size of Earth. It has an equatoria...
- Mars is similar to Earth in many ways. Like Earth, it has clouds, winds, a roughly 24-hour day, seasonal weather patterns, polar ice caps, volcanoe...
- The characteristic temperature on Mars in the lower atmosphere is about 200 kelvins (K; −100 °F, −70 °C), which is generally colder than the averag...
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- Space colonization, on Mars or elsewhere, is widely debated. Some argue humans have a moral duty to save our species from extinction, and space col...
1 day ago · Opinion. At a recent workshop in Washington, D.C., on the science of NASA’s Mars Sample Return (MSR) program, the mood was excited but tense. The space agency had just dropped a bombshell ...
5 days ago · Thus, life may have originated independently on Mars or been seeded from Earth. In 1996 the scientific world was shocked when a group of scientists announced that they had found evidence of life in a Martian meteorite.
3 days ago · The atmosphere of Mars is the layer of gases surrounding Mars. It is primarily composed of carbon dioxide (95%), molecular nitrogen (2.85%), and argon (2%). It also contains trace levels of water vapor, oxygen, carbon monoxide, hydrogen, and noble gases.
