Environment
A day used to be less than 19 hours long 1.4 billion years ago
The moon is making days on Earth last longer and longer, and we can track the changes through climate effects seen in the geological record
News
Space
Pluto is not a planet – it’s a billion comets squished together
News
Space
Why Saturn’s inner moons look like ravioli, cigars and potatoes
News
Space
Weird backwards asteroid may be an interstellar interloper
News
Space
Falling mini-moons may have created Earth’s first continents
News
Space
We’ve lost track of more than 900 near-Earth asteroids
News
Space
Probe saw plumes on Europa 20 years ago – we just didn’t notice
News
Space
The sun will die in a blaze of swirling gas in 5 billion years
News
Space
Gamma rays from the sun are acting weird and nobody knows why
News
Space
Diamond meteorites may come from a lost ancient planet
We may have found signs of a planet destroyed during the era of Earth’s formation. Meteorites with pockets of diamond could be the shards of this ancient world
News
Space
Young Saturn gave Jupiter the building blocks for its big moons
News
Space
Life on toxic Venus? Acid-loving microbes could thrive in clouds
News
Space
Jupiter’s hefty twin found just 12 light years away
News
Space
Mission Icarus: Inside the daring plan to touch the sun
Features