This week, revisit what you know about Uranus, explore the far side of the moon, rediscover the famed fossil known as Lucy, ...

Humanity's exploration of outer space continues to unveil astonishing discoveries that challenge our understanding of the ...

Scientists are reconsidering old information about Uranus. NPR's Scott Simon explains the problem with photos taken of the ...

Astronomers have identified the largest and most distant water reservoir ever detected in the universe. This immense ...