articles tagged: panspermia
are we really all martians?
# space

are we really all martians?

As the international race to explore Mars heats up, some writers are resurrecting an old hypothesis that life on Earth really started on the red planet.

how to sequence a martian’s dna
# astrobiology

how to sequence a martian’s dna

If we find life on Mars, it might be surprisingly difficult to confirm that it's actually Martian.

the planet’s toughest creatures
# science

the planet’s toughest creatures

The humble tardigrade seems to survive anything we throw at it. But how?