The Solar Dynamics Observatory saw a lunar transit and an Earth eclipse on July 25 — the first when the moon passed between it and the sun, and another when Earth did the same.

Almost everything you could want to know about the closest planet to the Sun, Mercury. Real HD photos and videos taken by the ...

The Very Large Telescope in Chile has found, for the first time, an infant planet nestled in spiral arms of dust around a ...

NASA's Parker Solar Probe has captured unprecedented images from just 3.8 million miles (6.1 million km) away from the solar ...

The newly released images from a December flyby are so detailed that scientists can see explosions and the flow of solar winds.

NASA has unveiled a dazzling new collection of cosmic images from the Chandra X-ray Observatory, capturing spectacular stars ...