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Planetary Protection
Whenever someone waxes poetic about terraforming alien worlds, it’s worth taking a moment to consider the ethical implications of the proposal.
The case for why NASA should pivot to searching for current — not ancient — signs of life.
The acceptance of our cosmic loneliness and the rarity of our planet is a wakeup call.
John Templeton Foundation
Here on Earth, the Sun is our primary source of light, heat, and energy. But it also poses a grave threat to human civilization.
65 million years ago, an asteroid strike caused the 5th great mass extinction. Could we save Earth, today, from a similar event?
Forget little green men: These scientists say we should be more worried about little green germs.
It isn’t about saving us from aliens at all. “To be on my very first spacewalk, to be outside, and to have contamination in my suit to the point that I […]