The Earth's magnetic field was most likely weaker when life evolved on our planet than it is today.
Oct. 15, 2020 • ~5 min
Tags: evolution atmosphere moon earth sun magnetism magnetic-fields life-on-earth solar-winds
The clouds of Venus may harbour alien life. But where else?
Sept. 18, 2020 • ~7 min
Tags: solar-system life mars earth alien-life jupiter saturn venus titan cassini enceladus europa
Martian meteorites allow scientists here on Earth to decode that planet's geology, more than a decade before the first missions are scheduled to bring rocks back home from Mars.
June 16, 2020 • ~6 min
Tags: space nasa mars gravity volcanoes antarctica earth meteorites outer-space asteroids national-science-foundation mars-rover sahara rock life-on-mars morocco martian-volcanoes
From the Moon's size to the first calculator, the ancients made some jawdropping discoveries without modern technology.
April 24, 2020 • ~8 min
Tags: astronomy moon earth ancient-greece sun
The Earth and the Moon were long thought to be virtually identical in composition. Now we know they are not.
March 9, 2020 • ~5 min
Tags: solar-system isotopes moon space-exploration earth
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