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The surface of Mars has a very low thermal inertia, which means it heats quickly when the sun shines on it. Typical daily temperature swings, away from the polar regions, are around 100 K. On Earth, winds often develop in areas where thermal inertia changes suddenly, such as from sea to land.
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%). [ 3 ] It also contains trace levels of water vapor , oxygen , carbon monoxide , hydrogen , and noble gases .
Similarly, summers in the north are long and cool, while summers in the south are short and hot. Therefore, extremes of temperature are considerably wider in the southern hemisphere than in the north. Mars sky at noon, as imaged by Mars Pathfinder (June, 1999). Mars sky at sunset, as imaged by Mars Pathfinder (June, 1999).
In 2022, a study of the same zircon grain found it had been “shocked” by a meteorite impact, marking it as the only known shocked zircon from Mars. On Earth, zircon is very common and found in ...
Mars is less dense than Earth, having about 15% of Earth's volume and 11% of Earth's mass, resulting in about 38% of Earth's surface gravity. Mars is the only presently known example of a desert planet, a rocky planet with a surface akin to that of Earth's hot deserts.
This may be because large Martian impacts such as Hellas induced global hot rainfall and meltwater flows that degraded crater rims, including their own. [11] The crater's depth of 7,152 m (23,465 ft) [ 1 ] below the topographic datum of Mars explains the atmospheric pressure at the bottom: 12.4 mbar (1240 Pa or 0.18 psi) during winter, when the ...
Because of this, Mars will look grander and more vivid than usual, making it a great time to view the planet. How To View Mars in January 2025. If you love astronomy, this is the best time to ...
NOAA and the terrible, horrible, no good, very hot year. Evan Bush. January 12, 2024 at 8:31 AM. Matt York. It’s official: Last year ranked as Earth’s hottest year ever recorded.