Watch the crescent moon, Venus and the bright star Regulus align in a rare predawn close conjunction tomorrow.

Whether you are in the U.S. hoping to spot Venus beside the moon today, or in Europe awaiting the rare occultation, September 19 promises one of the most peaceful and photogenic celestial moments of ...

Astronomy Ireland is setting up giant telescopes in anticipation of “an extremely rare view” of Saturn, which only occurs ...

A team of scientists has investigated how Earth’s twin became so inhospitable, and whether the same will happen to our planet ...

Akatsuki had completed its regular two-year operation that started in April 2016, after which its operation was extended to ...

A distant exoplanet might have an atmosphere similar to Earth's, early observations from the James Webb Space Telescope (JWST ...

Stargazers in the U.S. will witness the razor-thin waning crescent moon rise close to Venus and the bright star Regulus in ...

In the search for habitable exoplanets, atmospheric conditions play a key role in determining if a planet can sustain liquid ...

Late-stage planetary collisions reshaped Earth and its neighboring planets, delivering water, altering their atmospheres, and ...

Venus and Earth formed at the same time and share similar size and composition. Yet Venus is cloaked in carbon dioxide, with temperatures hot enough to melt lead.

Regulus, a distant star, Venus and our moon will be visible during a conjunction tonight, and how Californians can best see it.

Though the trio fits well inside a one-degree circle in the sky, they're actually a good study in astronomical distance. The Moon is only 385,000 kilometers (1.3 light-seconds) away, while Venus is ...