I/ATLAS comet is the 3rd-ever object discovered that originated from outside our solar system. It's not a threat, approaches ...

A NASA spacecraft is making a close approach to the sun, repeating its record-breaking distance of 3.8 million miles from the ...

NASA’s Hubble Telescope photographed the comet on November 30. At that time, the comet was still very far — about 178 million ...

The interstellar comet 3I/ATLAS reaches its closest point to Earth on Dec. 19, allowing close study with no threat to the ...

Astronomers have created the first continuous, two-dimensional maps of the outer edge of the Sun’s atmosphere, revealing a ...

Astronomers have followed 3I/ATLAS since its discovery on July 1. Hubble photographed it on July 21 from 277 million miles ...

The Geminid Meteor Shower peaks this weekend on the night of Dec. 13 into the morning of Dec. 14. All of Alaska has prime ...

A rocky exoplanet outside the Earth's solar system may have an atmosphere, according to new evidence gathered by NASA ...

On Dec. 12, 1967, NASA launched the Pioneer 8 spacecraft on a mission to study the sun. [‘On This Day in Space’ Video Series ...

An unusual “atmospheric phenomenon” was visible in satellite imagery across Northern California and the Central Valley.

Known as one of the brightest and most reliable celestial events of the year, the Geminids meteor shower will peak on Dec. 13 ...