Yesterday I enjoyed my second-ever opportunity to suit up and enter the clean room of the Spacecraft Assembly Facility at the Jet Propulsion Laboratory. On display were SMAP, an Earth orbiting radar mission, and ISS-RapidScat, which will perform a different radar experiment from the Space Station.
Six months ago, I wrote about the Russian weather satellite Elektro-L, which has more than two years of successful experience in the geostationary orbit. Then I promised that I would be here to share the materials that we collected. I think it's time to deliver on the promise.
It had never occurred to me to think about geostationary satellites in Mars orbit before reading a new paper by Juan Silva and Pilar Romero. The paper shows that it takes a lot more work to maintain a stationary orbit at an arbitrary longitude at Mars than it does at Earth.
With the Landsat Data Continuity Mission scheduled to launch on Monday, there's been a lot of Tweeting about Landsat, and through one such Tweet I learned about a resource that I hadn't known existed before: the LandsatLook Viewer. This is a graphical interface to more than a decade worth of Landsat data, a tremendous resource for anyone interested in Earth's changing surface, natural or manmade.
A recently launched Earth-observing satellite is using the stars to practice its pointing, and caught a neat animation of Jupiter.
Posted by Björn Jónsson on 2012/11/13 05:24 CST
This is a very large (19000 pixels square) mosaic of the fjords and glaciers of southern Greenland. I had been interested for a long time in experimenting with the processing of Earth satellite imagery just to get a comparison to the other planets.
Posted by Emily Lakdawalla on 2012/10/29 11:32 CDT
Today hurricane Sandy is a major threat to life and property across the west coast of the northern Atlantic ocean. I just want to give thanks in advance to all the people who have devoted their careers to making sure that Americans have sufficient warning of devastating, unstoppable weather events like this one.
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 Louis D. Friedman on 2011/07/18 02:08 CDT
Good news from Russia today: after 20 years of development they have finally launched their RadioAstron satellite (the official name is Spektr-R) into a high elliptical orbit around Earth.
Posted by Emily Lakdawalla on 2011/04/25 12:22 CDT
I wrote the following blog entry about an image from Japan's Daichi Earth-observing orbiter last week as one to keep in my back pocket for a day when I was too busy to write, not anticipating that there'd soon be a more pressing reason to write about Daichi. On April 21, after just over five years of orbital operations, Daichi unexpectedly fell silent, and is probably lost forever.
Posted by Charlene Anderson on 2011/03/04 01:16 CST
Another painful loss to NASA's mission to study Earth from space: Today a Taurus XL rocket failed to lift the Glory satellite into Earth orbit when its clam-shell nosecone refused to open, forcing the rocket and its payload into the southern Pacific Ocean.
Posted by Emily Lakdawalla on 2005/09/29 08:14 CDT
...but this one is much closer to home than Katrina and Rita were.