What lies beyond Neptune? Is it just empty space… or something far more mysterious? In this video, we explore the fascinating story of the Oort Cloud – a gigantic, icy sphere that surrounds our Solar ...

NASA's Advanced Composite Solar Sail System (ACS3) will be visible from the ground. Find out when you can see it on the NASA app on a mobile device. Credit: NASA/JPL-Caltech ...

NASA's IMAP mission will give Earthlings a sort of early warning system when solar weather may affect satellites and global communications ...

One day last spring, Brad Wardell found himself in suburban Baltimore for some meetings when he joked about videoconferencing ...

Watch the Sept. 21 partial solar eclipse live online with this handy livestream. Coverage begins at 2 p.m. EDT (1800 GMT).

This brings us to the complexity of NASA's announcement. "Confirmed planets are added to the count on a rolling basis by ...

The sun has become more and more active over the last 16 years, in a turn that surprised scientists and could affect space ...

Scientists from the University of St Andrews have discovered that ions in solar flares can reach scorching temperatures more ...

NASA and IAU have named a feature on asteroid Donald Johanson after India’s Narmada Valley, honouring its fossil heritage.

Astronomers might be close to confirming the presence of an Earth-like atmosphere on an exoplanet for the first time, if more detailed analyses verify preliminary observations from the ...

A new NASA mission will capture images of Earth's invisible "halo," the faint light given off by our planet's outermost atmospheric layer, the exosphere, as it morphs and changes in response to the ...

Unlike a total solar eclipse, where the moon completely blocks the sun and makes it possible to see the solar corona (our star's wispy outer atmosphere) with the naked eye, a partial solar eclipse ...