Fast-tracking a NASA plan to build a nuclear reactor on the moon may sound dubious. Experts say that’s because it is. “The whole proposal is cock-eyed and runs against the sound management of a space ...

A rare Black Moon will rise on August 23. The dark skies will make stargazing ideal. Planets like Venus, Saturn, and Jupiter will shine bright. Stargazers will get to observe a rare lunar event later ...

When the moon is nearly between Earth and the sun, one side of the moon faces the sun, and that side is illuminated, but the side the Earth sees is dark. This is called the new moon phase of the lunar ...