En route to land on the moon, a spacecraft snapped views of Earth eclipsing the sun. The Blue Ghost lunar lander, built by ...

Using a tracker for motion and mobile controls for exposure transitions, Dorje Angchuk succeeded in capturing a seamless sequence of the Earth's rotation.

HD 20794 d completes its orbit just shy of two Earth years, placing it well within reach of conditions that might harbor life ...

Planetary alignments aren't rare, but they can be when they involve six of the eight planets in our solar system.

The seven planets will not be perfectly aligned, but will appear in an arc across the sky due to their orbital plane in the ...