EarthSky

Alien sunsets, stone spiderwebs and mysterious doors: Curiosity's top 10 photos after 5,000 days on Mars

Meet Earth’s newest wild cat species, the first named in over a century

James Webb Space Telescope spies colossal cosmic cloud photo of the day for Sept. 16, 2026

Strange 'centaur' object between Saturn and Uranus has mysterious, changing rings, James Webb telescope study hints

Astrophysics study suggests Venus may have swallowed its moon

The sun may once have swallowed a super-Earth planet and could still be hiding the evidence

Astronomers looked back in time and found a monster 5,000 times bigger than our Galaxy. And it's packed full of dark matter

Small asteroid impact today over the ocean near Australia

A newly found star circles the Milky Way's central black hole every 8.7 years and passes it at about 25,000 kilometres a second, more than 8 percent of the speed of light, and the pass is so close that its discoverers say there is a fair chance of measuri

‘Jellyfish’ on Mars: Image from Curiosity rover goes viral

Black hole star? Solar-system-size 'dot' from the early universe is our best evidence yet of a brand-new type of cosmic object

Curiosity rover spots mysterious honeycombs on Mars photo of the day for Aug. 5, 2026

The 1st 'three-headed' asteroid photo of the day for Aug. 3, 2026

NASA’s Juno spacecraft finds temperatures surging just below Io’s volcanic surface

Betelgeuse, Betelgeuse! Astronomers capture clearest image yet of famous star's elusive companion

Astronomers have captured the clearest images to date of Betelgeuse, confirming the long-studied red supergiant is actually a binary star system.

Milky Way flipped in collision with dwarf galaxy 10bn years ago, astronomers say

Astronomers suggest the Milky Way may have flipped sideways following a collision with a dwarf galaxy 10 billion years ago.

Astronomers have found the first stellar-mass black hole in Omega Centauri, locked with a star in a 94-year orbit — the longest-period black hole binary yet found

NASA telescope discovers new 'super-Jupiter' exoplanet nearly 40,000 light-years from Earth

Scientists discover an Earth-like planet right next door

A martian rock has lots of carbon on it, and it's not clear why

A martian rock has been found with high levels of carbon, origin unclear

Voyager 1 launched in 1977 on a four-year mission, and in November 2026, nearly half a century later, it will become the first object ever to reach one light-day from Earth — so distant that a signal now takes a full 24 hours to cross the emptiness back h

XMM-Newton and Chandra help revise distance to Milky Way's outer spiral arms

Astronomers revise distance to Milky Way's outer spiral arms using XMM-Newton and Chandra

Sun unleashes powerful X-class solar flare and Earth-bound CME that could spark northern lights for July 4 weekend

Mars may have once been filled with seas of magma that made the Red Planet habitable

'The fate of Earth depends on a delicate balance': Our planet may survive the death of the sun after all, n...

This Is the Most Detailed Image Yet of the Milky Way’s Center

NASA is paying $30 million for a 1st-of-its-kind rescue mission to the aging Swift telescope before it falls from space. Is it worth it?

Large asteroid will safely pass by Earth on Saturday

Asteroid 1997 NC1, described as skyscraper-sized, is making its closest approach to Earth in over 400 years this weekend.

For a decade the Pink Planet was too faint for any ground telescope to study — and when James Webb finally caught its spectrum, the best fit to the light was an atmosphere hazed with salt clouds