An Egyptian sarcophagus shows the sky goddess Nut as being covered in stars and having a dark, undulating curve running ...

The first image of the whole Earth from space came in 1972, when astronauts Ron Evans or Harrison Schmitt took a photo from onboard Apollo 17 while headed to the Moon. This was the first time that an ...

For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...

Earth-like exoplanets might be more common throughout the Milky Way than previously believed, astronomers report in a new ...

ALMA observations of carbon monoxide emission from 15 protoplanetary disks reveal a stunning variety of gas structures, ...

Spotted thanks to a fleeting light distortion in 2011, a mysterious duo — a tiny star and its hefty companion — has turned ...

An astronomer breaks down 3 key components that allow researchers to make groundbreaking discoveries — and decide when ...

An unusual depiction of the ancient Egyptian sky goddess Nut may include a representation of the "Dark River" or "Great Rift" ...

The possibility that an additional planet may be hidden far into the solar system was touted more than a century ago. In 1983 ...

Researchers have found a candidate for the hypothetical Planet Nine, which could be an undiscovered giant planet way out in our solar system. However, as with all ninth planet research, the new ...