In the Solar System, planets farther from the Sun are usually colder. But Uranus breaks this rule. Even though Neptune is much farther away, Uranus is colder. This video explains why atmosphere ...

This third confirmed interstellar comet to enter our neighborhood has captivated astronomers and sparked debate within the scientific community. NASA ...

Astronomers have repeatedly observed events near a distant star that mirror processes from the early solar system’s ...

NASA's Hubble Space Telescope has directly imaged two massive asteroid collisions in the Fomalhaut system, offering unprecedented insight into planetary system evolution and raising new questions ...

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

Comet 3I/ATLAS is the third known interstellar comet after 2017's 1I/'Oumuamua and 2019's 2I/Borisov. It was discovered on July 1, 2025 and made its closest approach to the sun in October. Now it is ...

Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the ...

In an unprecedented celestial event, NASA's Hubble Space Telescope (HST) captured the dramatic aftermath of colliding space ...

A massive collision between two asteroid-sized bodies around a nearby star offers a rare look at the violent process of ...

Years ago, astronomers believed they had found a planet forming around a nearby star called Fomalhaut. This was very exciting ...

Ever wondered how planetary systems like our own solar system form? Thanks to the European Space Agency's Gaia space ...

Eight possible cave openings found on the Martian surface look to have once had ancient streams flowing into them, suggesting they are promising places to look for evidence of life ...