When big storms on Earth are done, they leave little trace in the atmosphere that they ever existed. On Saturn, though, big storms appear to leave traces even centuries after they faded from sight.Saturn is the second-largest planet in the solar system

When big storms on Earth are done, they leave little trace in the atmosphere that they ever existed. On Saturn, though, big storms appear to leave traces even centuries after they faded from sight.Sat

If you could catch the hot gas that the star Alnilam is blowing into space, in a million years youd have enough to make two stars as heavy as the Sun. But you wouldnt be able to tell much difference in Alnilam itself, because its one of the monsters of

Tadpoles swim through the Orion Nebula, a giant stellar nursery more than 1300 light-years from Earth. Like tadpoles, theyre not yet fully mature. Also like tadpoles, not all of them will survive their hostile environment.The tadpoles are known as pro

One of the most remarkable sights in the night sky is M42, the Orion Nebula. It looks like a hazy patch of light in Orions Sword, which is to the right of his three-star belt in early evening. The nebula is one of the most-distant objects thats visible

Proxima Centauri b is the closest planet outside our own solar system. So its natural to wonder whether it might support life. As with many other exoplanets, the answer is maybe. It has some big plusses, but perhaps some even bigger minuses.The planet o

Mercurys appearances in our sky are like a game of whack-a-mole. First, the planet pops into view in the morning sky, then it ducks into the Suns glare, then it pops up in the evening sky, and so on. It never stays in view for long no more than a few

Bright lights encircle the crescent Moon during the early dawn twilight tomorrow the star Antares and the planets Venus and Mercury.Antares appears closer to the Moon than the other two companions. From most of the United States, only a sliver of sky w

The two brightest stars of Gemini Pollux and Castor are in pretty good view in the east-northeast not long after the sky gets good and dark. Pollux is the brighter one, with Castor close above it. But Gemini is a big constellation, so its a long way

Delta Geminorum has one claim to fame. It was just half a degree from Pluto when the little world was discovered, in 1930. Pluto has moved a third of the way around the sky since then. But Delta Gem has stayed put. It’s the seventh-brightest star in Gemin