Two astronauts from the three-person Shenzhou 20 mission ventured outside Tiangong to do the spacewalk, which concluded ...

Mercury is farthest from the sun in Earth's morning sky on Aug. 19. Mercury will be farthest from the sun on Tuesday (Aug. 19 ...

SpaceX sent another batch of its Starlink broadband internet satellites into low Earth orbit today (Aug. 18), atop a Falcon 9 ...

When the Artemis 2 astronauts launch to the moon next year, they will be accompanied by one of 25 plush toys just named a ...

Portugal's space ambitions grow as Atlantic Spaceport Consortium secures approval to operate the nation's first launch center in the mid-Atlantic ...

Beyond the familiar planets lies a fascinating frontier filled with icy worlds, mysterious orbits, and cosmic curiosities.

A report published in June found that the world only has three years before it crosses the 1.5 C climate target. So what ...

A rare August morning alignment brings Mercury, a thin crescent moon and the Beehive Cluster together in the predawn sky.

The star, named WD 0525+526, is located about 128 light-years from Earth. Though it appeared rather standard at first glance through visible light, further observations using the Hubble telescope ...

Mercury is still shrinking as it cools in the aftermath of its formation; new research narrows down estimates of just how ...

Viewing with the aid of 10x50 binoculars will bring the light cast by a stellar cluster into sharper focus, or even allow you ...

Auroras may be visible from Alaska to Iowa as an incoming speedy solar wind could spark geomagnetic storm conditions overnight.