Mercury, the first planet from the sun, is about to stand out among the stars this week. But this brightness is not expected ...

Seven planets are on display in the night sky at the end of February, but some will be harder to spot than others. Here’s ...

For the best chances, spectators should look at the sky as soon as the sun sets. That's when the planets will make a brief appearance. Tokyo started seeing the parade first, on Feb. 22 ...

NASA’s newest space telescope rocketed into orbit Tuesday to map the entire sky like never before — a sweeping look at ...

Though sun halos can happen year-round, they are especially noticeable in the winter when ice-filled cirrus clouds are more ...

It rapidly zooms into the morning sky, reaching an angular distance of 15 degrees from the sun by month's end. Meanwhile, glowing brilliantly, well up in the southern and western sky is Jupiter.

It was around 1870 when the British physicist John William Strutt, better known as Lord Rayleigh, first found an explanation for why the sky is blue: Blue light from the Sun is scattered the most when ...

Mercury is joining Venus, Mars, Jupiter, Saturn, Uranus, and Neptune for a seven-planet parade. It's a stargazer's paradise.

Venus lies bright but low, while Jupiter and Mars dominate. South America and the eastern Pacific Ocean get the best views of ...