What's up in
Universe
Astronomy, cosmology, stars, planets, black holes and the observatories revealing how the cosmos works.
Asteroid impact may have scorched Earth twice over in hours, then starved it for years
Dark energy may be weakening as the universe ages, new supernova catalogue suggests
Astronomers find 76% of the universe's ordinary matter hiding in intergalactic gas
Solar telescope shut down after mercury leaks from 50-year-old bearing system
NASA deliberately crashed Galileo into Jupiter to protect Europa from Earth microbes
Amateur astronomers spot comet unseen for 1,900 years above Chile
Paris observatory's 120,000 solar photos reveal a century of change
Lost rubber ducks revealed 20 years of hidden ocean currents
Mysterious red dots in deep space may be hidden black holes reshaping cosmic history
Galaxy detected just 300 million years after Big Bang already held oxygen
