Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the ...

Explore the vast distances between planets and objects in our solar system, and why most of the space around us is a wide ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously ...

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact configuration and later underwent a violent reshuffling that scattered them to ...

Using observations from both ground-based telescopes and space instruments, they were able to measure the planet's size and ...

Jupiter, as always, is a dazzling object, shining among the stars of Gemini the Twins. It reaches opposition on Jan. 10; this ...

Astronomers at the Center for Astrophysics | Harvard & Smithsonian have captured what may be the biggest planet-forming disk ...

The interstellar comet 3I/ATLAS is just days away from coming as close to Earth as it will ever get. Here's how you can track it and spot it.

Interstellar comet 3I/ATLAS, discovered by NASA-funded telescopes, will pass Earth on December 19 at a safe distance of 270 million km.

The mystifying 3I/ATLAS interstellar comet is blazing toward Earth and will soon come as close to our planet as it ever will.

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

Interstellar object 3I/ATLAS is confirmed as a natural comet from beyond our solar system, posing no threat to Earth despite ...