Posted by Mat Kaplan on 2012/03/06 10:18 CST
A new installment of our "Snapshots" video series examines the threat posed by asteroids on collision courses with our home planet. Emily Lakdawalla explains why it's so important to find, understand and learn to deflect these potential civilization enders.
A few times a year I find myself confronting a table full of numbers describing the orbits of things in the solar system, and cursing at myself because I've forgotten,�again, what all these numbers mean and how to manipulate them to get the particular numbers I want.
Posted by Emily Lakdawalla on 2012/02/07 05:46 CST
There's been a bit of buzz on the Web this week regarding an ESA press release titled "ESA's Mars Express radar gives strong evidence for former Mars ocean." I don't ordinarily write about press-released science papers, but am making an exception for this one
Posted by Pat Donohue on 2012/02/03 10:02 CST
Guest Post: Patrick Donohue: Six days in the crater (day one)
WhirledSol posted a cool Youtube tribute to the Planetary Society a year ago, and we just now found it! It has a nice explanation of why we are so passionate about space exploration.
Posted by Emily Lakdawalla on 2011/12/20 04:53 CST
A large team of researchers has announced in a Nature article the discovery of not one, but two, Earth-sized planets orbiting a star named Kepler-20. This article separates the observational facts from the quite-likely-to-be-true inferences from the downstream speculations.
Posted by Emily Lakdawalla on 2011/12/08 03:19 CST
A report on the press briefing and talks from the Fall 2011 American Geophyisical Union meeting about the data on Vesta collected so far by Dawn.
Posted by Emily Lakdawalla on 2011/12/01 07:22 CST
On the November 6, 2011 flyby of Enceladus -- the third such flyby in just a few weeks -- the Cassini mission elected to take a SAR swath instead of using the optical instruments for once. So here it is: the first-ever SAR swath on Enceladus. In fact, the only other places we've ever done SAR imaging are Earth, the Moon, Venus, Iapetus, and Titan.
Posted by Jason Davis on 2011/10/14 06:31 CDT
Data from Earth observing satellites Aura and CALIPSO have shown record losses of seasonal ozone in the Arctic.
Posted by Emily Lakdawalla on 2011/10/07 07:09 CDT
Notes from Day 5 of the EPSC/DPS meeting: Saturn's storm, Phobos, and Lutetia
Posted by Emily Lakdawalla on 2011/10/05 11:04 CDT
Notes from Day 3 of the EPSC/DPS meeting (all about MESSENGER)
Posted by Emily Lakdawalla on 2011/09/23 01:09 CDT
Tethys and Dione don't seem to be active after all
Posted by Emily Lakdawalla on 2011/09/20 01:58 CDT
Reading Itokawa's life history from microscopic samples
Posted by Emily Lakdawalla on 2011/09/13 01:27 CDT
Jeff Moore's presentation was cool because of the discussion it stimulated. He considered what exogenic processes might be operating on Pluto's surface. What's an exogenic process? It's something that modifies the shape of the surface from the outside, and doesn't require the body to be geologically active inside.