The Saturn-orbiting Cassini spacecraft passed an important milestone back in March: It made its 100th close pass by Titan, the planet’s largest moon. Stardate has the details on how this was achieved.
he skywatching weekend gets off to a ghostly start this evening with an encounter between the Moon and the planet Mercury. The Moon looks like a pale version of its full glory. And Mercury is as elusive as a ghost — a planet that’s rarely seen.
Four of the five planets that are easily visible to the unaided eye arc across the sky shortly after sunset the next few evenings. One of the planets sinks from sight quickly, but the other three stick around for a while.
Young planets are on the move — they may be born far from their stars but quickly move closer. Some may get too close — they may fall into the star and be destroyed.
Astronomers have discovered thousands of possible planets orbiting other stars — and some of these planets are close to home.
Astronomers estimate one in six stars in our Milky Way galaxy has a planet the size of Earth orbiting it. That translates to at least 17 billion Earth-size planets.
The search continues for extraterrestrial life. With an outpouring of donations from the public, Mountain View-based SETI Institute will resume its pursuit of intelligent life on other planets.
The SETI Institute in Mountain View has suffered a major financial setback and as a result, is shutting down its deep space listening program.
The search for extraterrestrials got some exciting news on Wednesday as scientists have identified hundreds of alien planets, many of which are orbiting in the habitable zone around other stars.
GENEVA (AP) _ Scientists say they’ve identified a sun-like star with as many as seven different planets _ including one that might be the smallest ever found outside the solar system.