What's up in
Universe
Astronomy, cosmology, stars, planets, black holes and the observatories revealing how the cosmos works.
Venus and Earth diverged billions of years ago, and scientists still don't know why
A photon from the Sun's core takes 170,000 years to reach Earth
The observable universe may hold a septillion stars, yet complex life could still be…
Nuclear-powered octocopter being built to explore Saturn's moon Titan in 2034
Spacecraft bounced across Titan's icy surface after billion-kilometre journey
The Wow! signal was even more powerful than astronomers realized
Alien planet's mineral clouds vanish each afternoon in Webb's sharpest view yet
Drifting toward a black hole could age your twin decades while you age only hours
Neptune's largest moon orbits backward, suggesting the planet captured it
Titan's methane rain falls like water on Earth, but on ice as hard as stone
