New tidal stellar stream discovered with Gaia

By analyzing the data from ESA's Gaia satellite, Chinese astronomers have detected a new tidal stellar stream in the northern hemisphere, which has a low metallicity and a relatively high energy. The finding was reported ...

Video: Total solar eclipse seen from space

A total solar eclipse swept across North America yesterday, blocking out the sun momentarily with parts of the continent plunged into darkness. Geostationary satellites orbiting 36,000 km away captured images of the rare ...