The Moon passes by the star Spica the next couple of nights. The brightest star of Virgo is below the Moon as they climb into good view this evening, but closer above the Moon tomorrow night.One pro

Anyone standing on the Earth-facing hemisphere of the Moon tonight would see a partial solar eclipse, with Earth covering part of the Suns disk. From here on Earth, however, all well see is a penumb

The star that marks the tip of the lions tail appears to be a loner. It doesnt have a companion star. And so far, it doesnt appear to have any planets, either. But it does have the raw materials fo

Only two planets in our solar system are moonless: Mercury and Venus, the planets closest to the Sun. But 50 years ago this month, it looked like Mercury might have to drop off the list but only for

Its been more than half a century since the final Apollo mission left the Moon. But scientists are still learning from it. A few years ago, they started examining samples from Apollo 17 that hadnt b

It may be a cliche, but its true: If at first you dont succeed, try, try again. Thats certainly the case for the scientists hunting for dark matter. Theyve conducted many big experiments over the

Spring arrives in the northern hemisphere tonight, at the moment of the March equinox, as the Sun crosses the celestial equator. Day and night are about equal across the entire planet hence the name

When he was just 14 years old, Franz von Paula Gruithuisen found himself in the middle of the Austro-Turkish War. He wasnt a prisoner or a refugee. Instead, he was a field surgeon. But just a year la

The types of planets you have as neighbors may depend on your neighborhood. The planets discovered in our region of the Milky Way Galaxy come in just about every variety: hot Jupiters, super-Earths, m

The Moon hangs precariously above a star with a nasty-sounding name tonight: El Nath. The name comes from an Arabic phrase that means butting or goring. It indicates the stars position in its con