A Mars rover found organic carbon just sitting on a rock
The organic molecules could come from life or from ordinary chemistry — only samples returned to Earth can settle it. More
Eliana Willis
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A Mars rover found organic carbon just sitting on a rock
The organic molecules could come from life or from ordinary chemistry — only samples returned to Earth can settle it. More
Is NASA falling out of love with Mars?
Editor in chief Nancy Shute discusses NASA’s rocky relationship with Mars exploration. More
NASA seems to be backing away from hunting for life on Mars
Viking 1 kicked off the search for Martian life 50 years ago. Now NASA’s shifting priorities are putting the quest in limbo. More
NASA declares MAVEN, its Mars atmosphere orbiter, dead
Over more than a decade at Mars, the orbiter revealed how the solar wind strips away the planet’s atmosphere — and why the world lost its water. More
Europa may not vent water into space after all
The debate could reopen in 2030 when NASA’s Europa Clipper spacecraft gets the closest view of the icy moon’s surface. More
An ancient moonpocalypse may explain Neptune’s odd moon Nereid
Neptune’s oddball moon Nereid may be the sole remnant of an earlier system, formed near the planet rather than being pulled in from afar. More
Going to space? Always, always pack a camera
Planetary scientist Candice Hansen-Koharcheck championed the importance of space imagery. Her legacy lives on in every pixel that comes back to Earth. More
A small object past Pluto may have a thin atmosphere
A brief stellar eclipse suggests the tiny 2002 XV93 has a thin atmosphere — a first for any solar system body farther from the sun than Pluto. More
