It’s true that we haven’t seen alien life, but neither have we seen much of the universe.
See how the night sky would appear from a different part of the galaxy.
A 2018 mission will send a probe to within 4 million miles of the sun.
Lord Martin Rees tells us about black holes and existential risks.
A new model—“The Big Splat”—explains the strange asymmetry of the moon.
“Astronomy is almost nothing but the story of light.”
How ancient astronomy sowed the seeds for science and math.
How three groups are competing to make the first extremely large telescope.
One astronomer has taken to U.S. National Parks to rekindle an old romance.
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