Venus will pass to the north of the much-fainter bluish star Regulus (in Leo, the Lion) on the morning of Sept. 19; the planet and star will appear low in the east-northeast predawn sky, separated by ...

On Christmas Eve, the Parker Solar Probe is set to become the closest spacecraft to the sun when it flies within a few ...

The Parker Solar Probe will swoop just 6.1 million kilometers above the sun’s surface on Christmas Eve. Scientists are ...

The rain it raineth every day, as Shakespeare noted, apparently even on Saturn. The cosmos, it seems, is no comfort at this ...

Early interactions with the Earth may have heated up the Moon and caused it to remelt, producing new lunar rocks and erasing ...

Researchers have said that such instruments, as well as other forms of human activity on Mars, including landing sites and debris, must be preserved as part of the archaeological record of space ...

Astronomers posed over the past decade that dark comets, or objects that resemble asteroids but move like comets, may exist.

Dark comets are comets that are so small, fast and/or chemically rare that they are difficult to see from Earth ...

Instead of being a youthful 400 million years old as commonly thought, the icy, shimmering rings could be around 4.5 billion ...

Melting Antarctic ice continues to cause sea levels to rise, with the potential to affect millions of people living along ...