The astronauts and cosmonauts aboard the International Space Station spent their first full week as Expedition 74 crewmates.

New images taken with the Gemini North telescope in Hawaii confirm that the interstellar comet 3I/ATLAS has gotten brighter ...

Water is all around us, yet its surface layer—home to chemical reactions that shape life on Earth—is surprisingly hard to ...

Comet Lemmon was discovered in January 2025 and made its closest approach to Earth in late October 2025. But by November 2025 ...

Scientists have managed to observe solar neutrinos carrying out a rare atomic transformation deep underground, converting ...