A strange celestial phenomenon is lighting up the western horizon after sunset during the next couple of weeks.
A graduate student at the University of California, Berkeley has discovered a relatively nearby solar system with three planets that are slightly larger than the size of Earth, and one of the planets has temperatures moderate enough to possibly support life.
NASA scientists have identified a whopping 1,000 planets outside the solar system using data from the Kepler telescope, which has recorded thousands more potential planets in our galaxy.
A partial solar eclipse will be visible from the Bay Area later this month.
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.