In a world driven by data, algorithms, and relentless scientific progress, you’d think we’d have all the answers by now. But ...

Some observers may have noticed a faint glow illuminating the darker portion of the moon—a phenomenon known as Earthshine or ...

Because of the sun's positioning in the days just before, during and after the equinox, those looking down east-west roads in Chicago and the suburbs will be able to see the sun framed by much of the ...

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

September will have a trio celestial conjunction. Here's how to see the moon and Venus together in Arizona and upcoming alignments.

Just before sunrise, the waning crescent moon, the brilliant planet Venus, and Regulus, the brightest star in the ...

@Starlit Astronomy: The many mysteries of Venus may be related to a massive celestial impact event. In the early solar system ...

“I love Venus,” she says. “It’s Earth’s evil twin.” The two planets are about the same size, but the differences are stark.

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

Impact history should be considered a key factor in the search for habitable Earth-like exoplanets. Southwest Research ...

Saturday October 4 is International Observe the Moon night, initiated by N.A.S.A. This month is a good time to begin observing the moon with the naked eye, binoculars or a small telescope. The surface ...