Astronomers may have uncovered a massive hidden planet far beyond Neptune, using decades-old infrared data. The object’s ...

Fourth anniversaries aren’t often causes for celebration. But in the case of the James Webb Space Telescope (JWST), which ...

Intelligence findings seen by The Associated Press say the weapon could release pellets to disable multiple satellites.

Scientists using the James Webb telescope observed a distant exoplanet with an atmosphere of soot and diamonds, challenging ...

Scientists from several institutions, including the University of Chicago, discovered a lemon-shaped planet with an ...

NASA is also tracking a building-sized asteroid named “2025 YC3”, with a diameter of around 260 feet, and another bus-sized one known as “2025 XT7,” some 42 feet across. Both are expected to come with ...

Interstellar comet 3I/ATLAS makes its closest approach to Earth on Dec. 19. Here's how you can track its progress both during ...

Scientists using NASA's James Webb Space Telescope have observed a rare type of exoplanet, or planet outside our solar system ...

Discovered in archival data, the newly identified exoplanet formed after the dinosaurs went extinct. In a finding that echoes ...

The first planet ever found orbiting another star was detected in 1995, and it belonged to a class now known as a “hot Jupiter.” These exoplanets are comparable in mass to Jupiter but circle their ...

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact ...

Comet 3I/ATLAS will get closest to Earth on Dec. 19, and astronomers will be watching.