Last week, India launched RISAT 1, a new Earth-observing satellite. How does its synthetic aperture radar compare to that of Envisat, which has fallen silent?
Do planets circle our closest stellar neighbors, the system loved by science fiction: Alpha Centauri? We don’t know. But, Debra Fischer, Julien Spronck, and their colleagues at Yale University, in part with Planetary Society support, are trying to find out.
With the latest piece of the puzzle just published in a scientific journal, a solar system mystery that has perplexed people for more than 20 years has been solved, truly thanks to the support of Planetary Society members.
Posted by Jason Davis on 2012/04/11 12:29 CDT
A classified U.S. military satellite recently launched into an orbital inclination of 123 degrees. What makes this trajectory so unique? Pondering the answer affords the opportunity to learn some deceptively tricky concepts about the nature of all spacecraft orbits.
Posted by Emily Lakdawalla on 2012/03/15 03:05 CDT
Yesterday I was treated to a little tour (little, because it's a little building) of Honeybee Robotics' office here in Pasadena. Honeybee is developing some great technology for future space missions for Earth, Mars, and beyond.
Posted by Mat Kaplan on 2012/02/06 09:46 CST
This weeks Planetary Radio features updates on the James Webb Space Telescope, from Deputy Project Director Eric Smith. The discussion centers around the budget controversy, and why the JWST is worth the money.
Posted by Jason Davis on 2012/01/09 05:54 CST
As of November 2011, the Earth Observing Handbook counts 109 active missions to study the Earth as a planet, with 112 more approved and planned for the future. Jason Davis provides an overview of key current and upcoming earth-observing missions.
Posted by Emily Lakdawalla on 2011/11/28 03:07 CST
Maybe it's because I was a kid during the Cold War; I always assume that information about anything nuclear only comes out on that "need-to-know basis."
Posted by Emily Lakdawalla on 2011/10/19 01:49 CDT
JAXA's solar sail demonstration craft IKAROS is still puttering along, 17 months after it launched, and its controllers back on Earth keep coming up with new things to try with it. I'm pretty amazed by the most recent trick: reversing its spin direction. This may not sound like a big deal, but it is, especially for IKAROS.
Posted by Ryan Anderson on 2011/05/27 09:01 CDT
Laser beams and space exploration are perfect for each other, and not just because all self-respecting starship captains know their way around a blaster. It turns out that zapping rocks with a laser is not only fun, it also can tell you what they're made of!
Posted by Emily Lakdawalla on 2011/03/21 01:37 CDT
The Jet Propulsion Laboratory has posted a short video showing some recent testing of an engineering model of the Mars Science Laboratory in their outdoor Mars Yard; they're testing the performance of the rover's driving capability over slopes of varying steepness and covered with bedrock, compacted sand, and very loose sand.
Posted by Emily Lakdawalla on 2010/12/31 08:04 CST
This week is the end for Kodachrome film. It's a casualty of the digital revolution.
Fifteen years ago, Society members and passionate space advocates like you helped save the Pluto mission. Now we can do the same for missions to Europa and Mars.
Join over 26,400 people who have completed their petition and consider a donation to support advocacy efforts.