Artist's impression of what the Moon looked like during the tidal-heating event. There would have been intense volcanic activity everywhere. The early Earth would have loomed much larger in the sky ...

Scientists propose a 'remelting' of the Moon's surface 4.35 billion years ago due to the tidal pull of Earth causing widespread geological upheaval and intense heating. Much about the Moon remains ...

Io, one of Jupiter’s Galilean satellites, is the most volcanically active body in the solar system. Images from spacecraft have shown molten lava erupting along walls that dam giant lava lakes and ...

Scientific American interviewed Tracy Gregg about a new map of Jupiter’s moon Io, which is the most volcanic moon in the solar system. The map, which examines 266 volcanic hotspots, suggests that ...

Some white dwarfs in rapid binary orbits are far hotter and larger than theory predicts. Researchers found that powerful tidal forces between them generate enough heat to inflate their sizes and ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Hycean worlds are also called ocean worlds. They're planets covered in oceans that also have thick hydrogen atmospheres. There are no confirmed hycean worlds but many candidates. Even though they're ...