According to NASA, the aurora on Earth may last only a few minutes, but on Saturn, it can last for days. In the 2010s, aurora ...

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The unexpected 2020 collapse of the Arecibo Observatory left NASA's Goldstone Solar System Radar as the new heavy hitter when ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

A new study, however, identifies a possible candidate. A separate team of astronomers compared 1983 data from the Infrared ...

At a frigid -125 degrees Fahrenheit (-87 degrees Celsius), WD 1856+534 b is the coldest planet ever directly observed, ...

"A planet orbiting not just a binary, but a binary brown dwarf, as well as being on a polar orbit, is rather incredible and exciting." ...

When we think about asteroids that could threaten Earth, we often imagine massive, city-sized rocks hurtling through space. But what if the real danger comes from much smaller, barely detectable ones?

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Astronomers may have found a candidate for Planet Nine. This planet is beyond Neptune. The finding could be the first ...

Discovered in 1930, Pluto was long considered our Solar System's ninth planet, but was unseated in 2006 after the discovery ...

There have been questions about a mysterious ninth planet in our solar system for nearly a decade. Pluto was unseated as ...