Life on Mars
The new machine-learning algorithm can distinguish between biological and nonbiological samples with 90% accuracy. Exactly how is a mystery.
NASA's Perseverance rover has found an intriguing menagerie of organic molecules in a Martian crater, but their source remains unclear.
A new study into the Tissint meteorite, which crash-landed in Morocco in 2011, revealed a wide array of organic compounds hidden in the rare space rock.
New research suggests that signs of ancient Martian life could be out there – or rather, hidden just beneath the Martian surface, safe from harmful radiation.
The finding comes from a modeling study that assumes ancient Martian life was similar to that on Earth during the same time period.
Bright reflections that radar detected beneath the south pole of Mars may not be underground lakes as previously thought but deposits of clay instead, a new study finds.
The findings from the Curiosity rover could help the Perseverance rover decide which samples to collect for later analysis.
Methane tends to only be made by biological life, so scientists are wondering if the source is from alien microbes.
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