NASA is monitoring a bus-sized asteroid as it makes its closest approach to Earth today, among a group of five space rocks ...

A top Space Force general said Tuesday that commercial systems have observed Chinese satellites rehearsing “dogfighting” ...

Space is getting crowded — humans have now placed over 20,000 satellites into orbit since the start of the space age, and ...

Quantum-based gravity sensors have probed fundamental physics, and they could transform our understanding of what’s just ...

Webb’s latest discovery has opened a thrilling new chapter in exoplanet research by capturing the first-ever direct images of ...

NASA's James Webb Space Telescope was recently used to capture direct images of four Saturn-like exoplanets in a solar system 130 light-years away.

The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away that has long been a ...

The asteroid 2024 YR4, once considered potentially hazardous, isn't likely to hit us anytime soon. Now, a team of researchers ...

The finest ever map of the cosmic microwave background - the faint evidence of the universe's early form - has yielded ...

NASA astronaut Don Pettit captured this stunning long-exposure view of Earth and stars from space at night from the International Space Station.

Four small, newly discovered worlds are less than six light-years away from Earth, and their discovery reinforces a ...

Astronomers have confirmed the existence of four planets orbiting a star less than 6 light-years away with help from some of ...