Dust devils are a common feature on the Martian surface, but seeing one of these extraterrestrial whirlwinds in action through the eyes of a Mars rover is a special joy.
It would be cold, it would be dry, it would be unpleasant.
By tracking the phases of six exoplanets, astronomers have tracked their daily weather cycles for the first time.
In this dreamy observation, staring down on Mars' south polar icecap, a European spacecraft has captured stunning ruddy swirls frozen in Martian ice, like cinnamon sprinkles and coffee mixing with the frothy milk atop a rich cappuccino.
Here today, gone tomorrow; a bright layer of frost lining a crater wall is vanquished by the springtime sun -- and seen by a NASA Mars satellite high overhead.
Mars' atmosphere is often viewed as frigid and unchanging, but in studies of the red planet's aeolian processes, nothing could be further from the truth -- particularly where Martian dust devils are concerned. Continue reading →
Exoplanet hunters have just made it easier to identify alien Venuses, in the hopes that doing so will lead to the discovery of more alien Earths.
NASA on Wednesday launched a satellite designed to track carbon dioxide, a leading greenhouse gas that is responsible for global warming.
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