The Arecibo Message as it appears when its 1,679 bits are properly aligned on a grid (left), an annotated illustration ...

Earth' 5-7 times Earth's mass might lurk in the Kuiper Belt, reshaping our solar system. Planet Nine could explain mysterious ...

November's full moon will be Friday night as the last consecutive supermoon in 2024. It's called the beaver moon, and ...

This illustration shows a red, early-universe dwarf galaxy that hosts a rapidly feeding black hole at its center. Using data ...

This has informed how we think about Uranus ever since, making the planet's history a mystery scientists have been working to solve. There's just one problem, says space plasma physicist Jamie ...

Associate professor Patryk Sofia Lykawka from Japan’s Kindai University, co-author of the study, noted that Planet Nine’s ...

"Its orbit would be very distant, much beyond Neptune, and much more inclined compared ... caused by a primordial black hole ...

Written by the former chief historian of NASA, the book examines the evolution of our cosmic understanding—from early civilizations to the present day ...

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the ...

Stellar Stories Hera spacecraft launched The European Space Agency's Hxera spacecraft launched on October 7, initiating an ...