Add Yahoo as a preferred source to see more of our stories on Google. Study suggests moons orbiting rogue planets could host liquid oceans for billions of years using tidal heating and hydrogen ...

Some dark matter can find its way inside planets, where it can interact with baryonic matter, producing heat and making the planet rotate more quickly. Credit: ESA Dark matter is a confounding concept ...

For the first time, astronomers have filmed a planet-forming disk in motion, watching the swirling material around the young star AB Aurigae shift over nearly four years. Using three epochs of ...