The finding comes with significant new suggestions about the solar system ...

Worlds this small and distant are thought to be too cold and have too little surface gravity to hold onto gases. But the findings suggest that icy, rocky objects in the solar system's outer reaches ar ...

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

Pluto was believed to be the only body beyond Neptune with an atmosphere. Now, a new discovery in our solar system is ...

Astronomers have discovered a thin atmosphere around a small celestial body in the outer solar system for the first time, ...

Word of the Day ‘Syzygy’ explains the rare alignment of celestial bodies during eclipses. Learn its meaning, origin, usage, ...

Previously Pluto was the only such body thought to have supported an atmosphere, due to its stronger surface gravity.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A team of school students and teachers has discovered 11 small ...