Hello, Antarctica. Unlike previously anticipated, from 460 km above, it is only pure white, no human activity is visible.” ...

The final piece of an advanced series of weather satellites officially began operating Tuesday to help provide better ...

The international all-civilian Fram2 crew is the first in space history to fly to orbit with no licensed pilot or trained ...

A 2014 satellite image captured a rare glimpse of a massive, eerily circular ring of clouds that formed slap-bang in the ...

Meet the author: Dr. Phil Plait is an astronomer, author, and science communicator with a PhD in astronomy at the University of Virginia. He has written four books on astronomy and consulted on space ...

SpaceX's Dragon spacecraft made history today (1 April), as it orbited the poles of Earth for the first time in human history ...

SpaceX is scheduled to launch a first-of-its-kind mission that will carry four private astronauts to fly above the Earth's ...

The vernal equinox signals the astronomical start of spring in the Northern Hemisphere, with the sun crossing above Earth's equator, moving from south to north, at 5:01 a.m. EST (0901 GMT ...

The spring equinox will occur at 5:01 a.m. EDT on Thursday. An equinox occurs when the Earth's equator aligns with the sun, resulting in a "nearly" equal amount of daylight and darkness at all ...