Astronomers have revealed new evidence that there are not just one but four tiny planets circling around Barnard's Star, the second-nearest star system to Earth.

Saturn has dozens of new moons, bringing it to a total of 274. All of the new moons are between 2 and 4 kilometres wide, but at what point is a rock too small to be a moon?

Saturn has dozens of new moons, bringing it to a total of 274. All of the new moons are between 2 and 4 kilometres wide, but at what point is a rock too small to be a moon?

This is the fourth comet Gröller has discovered, but given its extraordinary distance, it was the most exciting find, he says ...

An amature astronomer spotted a near Earth object and alerted authorities only to realize it was Elon Musk's Tesla Roadster ...

NASA has significantly lowered the risk of asteroid 2024 YR4 hitting Earth. Last week, the asteroid had a 3.1% probability of ...

Sedona Red Rock News Managing Editor and Sedona Poetry Slam founder Christopher Fox Graham has become the second Sedona resident to have a celestial body named after him with the recent redesignation ...

NASA has all but ruled out asteroid 2024 YR4 as a danger to Earth, reducing its impact probability to just 0.004% in 2032. However, a small risk remains for the Moon. Scientists are seizing the moment ...

Once an observatory first spots a previously undiscovered asteroid, astronomers report the find to the Minor Planet Center in Cambridge, Massachusetts, a sort of public notice board for ...

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already visible in the night sky. Here's why it matters to scientists.