Astronomy, Moon | featured news

Long landslides spotted on Saturn's moon, Iapetus, could help provide clues to similar movements of material on Earth. Scientists studying the icy satellite have determined that flash heating could cause falling ice to travel 10 to 15 times farther than previously expected on Iapetus.

Pluto may have been kicked out of the planet club, but it has gained yet another companion. Scientists announced Wednesday the discovery of the smallest moon yet around the icy orb, bringing the tally of known moons to five. "We're not finished searching yet," said Hal Weaver of Johns Hopkins University, who thinks there may be more lurking.

Sunrises and sunsets often dazzle, but they'll have a special ring to them in a few days for people in the western United States and eastern Asia: The moon will slide across the sun, blocking everything but a blazing halo of light....

A "supermoon" has graced the skies, appearing bigger and brighter than usual, as it comes closer to the Earth - bringing with it the chance of higher tides.

The Cassini spacecraft captures striking images from flying by three moons of Saturn, including new pictures of Enceladus's gushing geysers.

For explorers searching for life beyond Earth, the siren song of Europa, Jupiter’s icy moon, trills sweetly. “Europa has the best chance of having life there today,” said Britney Schmidt, who studies the moon at the University of Texas at Austin. Astrobiologists think so because NASA’s Galileo probe found strong evidence for a deep, briny ocean covering the entire moon deep under the icy surface.

Russian scientists were racing against the clock Wednesday to find a way to fire the engines of an unmanned probe destined to collect soil samples from a moon of Mars, after equipment failure shortly after launch left it stuck in Earth orbit....

Is China on course to surpass the United States as the world's space superpower and stake a claim on the moon in the next 15 years? Billionaire space executive Robert Bigelow is deeply worried about that scenario — and he says Americans need a "kick in the ass" to respond to the challenge.

A small asteroid zipped by Earth well inside the orbit of the moon on Friday, marking the second known space-rock encounter for our planet over the past week, NASA said.

A pair of spacecraft rocketed toward the moon Saturday on the first mission dedicated to measuring lunar gravity and determining what’s inside Earth’s orbiting companion — all the way down to the core. “I could hardly be happier,” said the lead scientist, Maria Zuber. After two days of delays and almost another, “I was trying to be as calm as I could be.”