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Asteroid

stardate

StarDate: Ceres, The Watery Asteroid

Ceres is the solar system’s largest asteroid — a big ball of rock and ice about 600 miles wide, orbiting the Sun between the orbits of Mars and Jupiter. But astronomers recently discovered that Ceres is probably behaving a bit like a comet: some of its ice is vaporizing in the heat of the Sun.

05/02/2014

Eye On The Bay - Chabot Observatory

Bay Area Viewers Attempt Glimpse Of Passing Asteroid

According to Oakland-based Chabot Space and Science Center astronomer Ben Burress, the asteroid missed Earth by about 17,230 miles, closer than many of earth’s satellites.

02/15/2013

A meteor (L) from the Geminids meteor shower enters the Earth's atmosphere. (Stan Honda/AFP/Getty Images)

SF Fundraising Begins To Build Warning System For Asteroid Threats

Sentinel, a massive infrared space telescope to be privately financed by the B612 Foundation, would hover in space anywhere from 30 million to 100 million miles from Earth looking for large asteroids on a trajectory for home.

06/28/2012

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