At least 75 % of Earth’s mass appears to originate from two protoplanets, that grew large by accreting pebbles, while planetesimals contributed up to 25 %. In contrast, roughly three-quarters of Mars’ mass appears to come from planetesimals.
NASA’s Curiosity rover drove sent a captivating panorama from the slopes of Mount Sharp. The image was not white-balance adjusted during processing, to show just what a viewer might really see at sunrise standing on Mars.
Holes and pitted ground on Mars are nothing new. But the new holes Curiosity has found - tiny, shallow divots in the ground – are unlike anything seen before on Mars.
NASA’s Curiosity rover has stumbled on the largest patch of polygon-shaped ground fractures it has ever seen on Mars, a discovery that could reveal more about the planet’s watery past.
NASA's Perseverance rover has reached an impressive new milestone on Mars, completing the equivalent of a full marathon by driving 42.195 kilometers across the Red Planet.
Shalbatana Vallis is an impressive channel near Mars’s equator. It is 1300 km in length - around the length of Italy. Formed formed around 3.5 billion years ago, when huge quantities of groundwater rose up to Mars’s surface.
A NASA rover has discovered more building blocks of life on Mars after carrying out a chemistry experiment never before conducted on another planet.
Now Perseverance’s ground-penetrating radar (called RIMFAX) detected older river delta buried tens of meters beneath Jezero crater.
Now new research into extremophiles shows that at least some of them can survive ejection from Mars due to an asteroid strike.
The researchers found that additional studies of the data from Curiosity show that non-biological sources they had considered don’t fully explain the organics. They conclude, therefore, that a biological source is a reasonable hypothesis.
The chemical math of the interior of the meteorite Black Beauty means that those little bits of rock hold up to about 11% of the sample's total water content.
A sample collected by NASA’s Perseverance Mars rover from an ancient dry riverbed in Jezero Crater could preserve evidence of ancient microbial life.
Mars isn’t the neatly layered world we once imagined — its mantle is filled with ancient, jagged fragments left over from colossal impacts billions of years ago.
The researchers posit that the volcano could have supported conditions favorable for life in the once-watery Jezero crater.
A new panorama from NASA’s 2001 Mars Odyssey orbiter shows one of the Red Planet’s biggest volcanoes, Arsia Mons, poking through a canopy of clouds just before dawn.
