Blog Archive

Planetary Society Weekly Hangout: Studying Asteroids from Earth with Andy Rivkin

Posted by Emily Lakdawalla on 2013/02/28 01:25 CST | 5 comments

Emily Lakdawalla's guest this week was Applied Physics Laboratory asteroid astronomer Andy Rivkin. We talked about the menagerie of rocks in the asteroid belt, how many of them travel in pairs and triples, how some of them are surprisingly wet, and how much you can learn about asteroids using Earth-based telescopes.

Voyager captured this view of Uranus' moon Umbriel from a range of slightly more than a million kilometers on January 24, 1986. Processed by Ted Stryk.

Mysterious Umbriel

Posted by Ted Stryk on 2013/02/28 12:59 CST | 1 comments

Presenting a newly-processed version of Voyager 2's best images of Uranus' moon Umbriel.

Comet to whiz past Mars in October 2014

Posted by Emily Lakdawalla on 2013/02/27 05:36 CST | 17 comments

A recently discovered comet, C/2013 A1 (Siding Spring), is going to be passing very close to Mars on October 19, 2014. Does it pose a risk to spacecraft?

Checking in with the Future of Mars Exploration at NASA

Posted by Casey Dreier on 2013/02/27 02:17 CST | 4 comments

Reporting from NASA's Mars Exploration Program working group on the latest updates in scientific exploration of the red planet.

MarsFest 2013: Mars in the Mojave

Posted by Casey Dreier on 2013/02/26 01:14 CST | 1 comments

From March 1st - 3rd I'll be representing the Planetary Society at the 2nd annual MarsFest, located in Death Valley National Park.

Atacama Diary

Posted by Mat Kaplan on 2013/02/25 11:47 CST | 4 comments

The first in a series of audio blogs chronicling my trip to the driest spot on Earth, Chile's Atacama desert, to see the inauguration of the ALMA Observatory.