Neptune is usually absent, and Uranus and Saturn are curious about his whereabouts. The answer is both obvious and sad.

The James Webb Space Telescope has achieved a historic milestone by capturing the first direct image of an exoplanet.

Skywatchers in central Wisconsin can expect a stunning week ahead, with planetary pairings, moon phases and celestial ...

The Hera Space Companion provides updates on the European Space Agency’s Hera Project, part of a global effort to defend earth against an asteroid strike that could have catastrophic effects. The ...

What processes during the formation of Pluto's largest moon, Charon, potentially led to it having cryovolcanism, and even an ...

What on Earth is going on with the American consumer? U.S. workers are not sure whether to buy that new car — or brace for a recession Last Updated: June 4, 2025 at 5:34 a.m. ET First Published ...

Friday, July 4 Mercury reaches its greatest eastern elongation from the Sun, standing 26° from our star at 1 A.M. EDT. We’ll ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Recent observations have revealed carbon monoxide venting from the largest comet ever seen, providing clues about its origins ...

Astronomers discovered that C/2014 UN271, a massive comet more than 10 times larger than any known comet, is emitting jets of ...

Mercury is notoriously difficult to see from Earth, thanks to its proximity to the Sun. But on July 4, Mercury reaches its ...

The Webb Telescope found two young planets forming sand clouds in the YSES‑1 system, revealing unprecedented details about ...