Welsh island has one of the world's darkest skies Massive asteroid passes between Earth and Moon Webb telescope detects dust storm on distant world The best shot at spotting the planets on Monday ...

They'll look like stars but they're not -- they're planets. What's arresting about this view is they all line up in a straight line, starting down very close to the horizon with Mercury and ...

five-planet alignment with Saturn, Neptune, Jupiter and Uranus. The five-planet line-up is the result of all the planets traveling around the solar system at different speeds, with causes apparent ...

The alleged "Planet Nine," also called "Planet X," is believed to be about 10 times the mass of Earth and 5,000 times the mass of Pluto. Related: 15 stunning ... have been five human-made objects ...

Astronomers are revising their understanding of how stars and planets form after the James ... these six rogue worlds are gas giants roughly five to 10 times more massive than Jupiter.

Technically speaking, ‘planetary alignment’ is the official astronomical term for what happens any time two planets or more ...

Astronomers have found six new worlds that look like planets, but formed like stars. These so-called rogue worlds are between five and 15 times the mass of Jupiter, and one of them may even host the ...

NASA’s Juno spacecraft orbiting Jupiter has sent back another batch of stunning photos of ... after completing its core five-year survey of the giant planet. The new images from its 36th ...

A celestial event is considered a parade when several planets are involved in the lineup — like June's ... while a large planetary alignment includes five or six.

Installation of the work by artist Olafur Eliasson began early this summer and had passersby curious about what was under the ...