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

Early Mars seems to have had a protective atmosphere and liquid water in the form of oceans, rivers, and lakes. It may also ...

3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar system. On ...

When interstellar comet 3I/ATLAS made its closest approach to Earth on December 19, 2025, it did not become a spectacular object in the night ...

However, the mechanism that has been thought to explain how that stardust disperses has now been shown to be flawed, and the team that made the discovery doesn’t have a coherent alternative to offer ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Astronomers have been treated to a stunning fireworks display from around a young star called The events, detected in 2004 ...

Hubble reveals the largest planet-forming disk ever seen, Dracula's Chivito, showing a chaotic and uneven environment around ...

The earlier two were ‘Oumuamua, discovered in 2017, and 2I/Borisov, found in 2019. For scientists, 3I/ATLAS is important because it gives a rare chance to study material from another star system ...

Earth may owe some of its properties to a nearby star that blew up just as the solar system was forming. This pattern, which saw a supernova bubble envelop the sun and shower it with cosmic rays, may ...

Learn how you can say farewell to comet 3I/ATLAS as it passes by Earth on Dec. 19, 2025, and what we have learned during its ...

According to a NASA study, Saturn's moon Titan may be the most fantastically large slushie of all time. Based on a reexamination of data from the Cassini probe collected in 2012, the moon's ...