A rare observation opportunity revealed the presence of a thin atmosphere around a small object beyond Pluto.

Astronomers have identified another object from this realm, with a diameter of roughly 310 miles (500 km), that has an ...

Scientists are grappling with a cosmic mystery: why does the Universe behave differently on massive scales compared to our ...

Reference See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2026. Should Pluto be a bona fide planet again? NASA is working to "revisit the discussion" on ...

Talk about a heated situation. The sun unleashed two colossal solar flares within seven hours of each other this week, ...

The celestial body’s status as the solar system's ninth planet was withdrawn in 2006. Now some experts say we might want to ...

I watched Armageddon again fairly recently with Bruce Willis, oil drillers in space and an asteroid the size of Texas bearing ...

A small, inconspicuous meteorite may be about to change our understanding of how and when our solar system formed. Tiny shavings from the meteorite Northwest Africa 12264 are challenging the long-held ...