Astronomers searching for a ninth planet in our solar system say they've found ... planetary candidate while studying old satellite data. At this stage, the candidate is simply a curious dot across a ...

A vast star-forming cloud of molecular hydrogen that is one of the largest single structures in the sky has been discovered hidden near the solar system. The crescent-shaped cloud—which its ...

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

File photo: Artist's impression of the eight current planets of the solar system. File photo ... those of the Infrared ...

Researchers discovered Eos, a molecular cloud, using ultraviolet light. It is near Earth and lacks carbon monoxide. This ...

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

FILE - This May 18, 1969 photo ... discovery, scientists using the James Webb Space Telescope have obtained what they call the strongest signs yet of possible life beyond our solar system ...

The ongoing search for an additional planet at the solar system's edge has identified a new candidate, potentially challenging previous predictions.