Researchers discovered that a combination of starlight and the upper atmosphere's own subtle glow can help satellites see Earth's clouds on moonless nights.
(Image credit: the European Space Agency) If it seems like old satellites are falling to earth every month… it’s because they are. Back in September, NASA’s dead Upper Atmosphere Research Satellite (UARS), burned up as it re-entered our atmosphere, with leftover debris hitting the Pacific Ocean, southwest of Vancouver. Now comes word that Germany’s ROSAT [...]
Last weekend the Upper Atmosphere Research Satellite (UARS) crashed down, and now a second satellite, the German Roentgen Satellite (ROSAT), is speeding back as well. We caught up with it for a quick chat. The Hairpin: Guten Tag! ROSAT: Guten Tag. TH: UARS hurtled toward earth just last week — wouldn't you want to wait? ROSAT: Nicht. Show More Summary
The world watched on Friday as the direlict spacecraft named UARS (Upper Atmosphere Research Satellite) made its final few orbits around Earth. And then we waited for final word of its reentry location. And waited. And waited. I wound...Show More Summary
"Because we don't know where the re-entry point actually was, we don't know where the debris field might be. We may never know." —A NASA scientist comments on the "suicidal" death of the Upper Atmosphere Research Satellite (UARS), an...Show More Summary
A defunct six-ton NASA satellite has fallen to Earth -- prompting the US space agency to say they're not aware of any injuries or property damage.After its mission which began in 1991, the decommissioned Upper Atmosphere Research Satellite (UARS)...
NASA's decommissioned Upper Atmosphere Research Satellite (UARS) fell back to Earth between 11:23 p.m. EDT Friday, Sept. 23 and 1:09 a.m. Sept. 24, 20 years and nine days after its launch on a 14-year mission that produced some of the first long-term records of chemicals in the atmosphere. Show More Summary
After a night of changing predictions and hopes of many to see a fireball in the sky, the UARS (Upper Atmosphere Research Satellite) finally met it's fiery demise. More »
After having a few bumps in the road in trying to control the Upper Atmosphere Research Satellite’s crash into the Earth, NASA confirmed that the satellite penetrated Earth’s upper atmosphere between 11:23 p.m. and 1:09 a.m. last night. The problem is, NASA isn’t quite sure exactly where the thing has crashed, if any of it [...]Show More Summary
Abandoned 6-ton Upper Atmosphere Research Satellite (UARS) satellite entered the earth's atmosphere early on Saturday and crashed in the North Pacific Ocean, the Californian Joint Space Operations Center said.
NASA has confirmed that the Upper Atmosphere Research Satellites, UARS, burned up over the Pacific Ocean last night, September 24, between 03:23 and 04:09 a.m. UTC (11:23 p.m. and 12:09 Eastern US time). I have no other reliable information on it, but I expect we’ll get more updates soon. There were lots of reports last [...]
NASA reports that its Upper Atmosphere Research Satellite (UARS) has crashed to earth in a fiery reentry sometime between 11:23 P.M. EDT on Friday an…
After days of waiting, NASA's Upper Atmosphere Research Satellite has finally plummeted back to Earth. Initially it seemed that the craft would complete its re-entry sometime on Friday, but new information indicated that the craft had re-orientated itself and begun to slow down. Show More Summary
After several days of harrowing uncertainty, the Upper Atmosphere Research Satellite finally made its fiery descent through the atmosphere over the Pacific Ocean. [ more › ]
Hey, Chicken Little! The Upper Atmosphere Research Satellite (UARS) satellite that NASA said would fall to the Earth some time this weekend entered the Earth's atmosphere last night or early this morning. NASA isn't sure when exactly...or...Show More Summary
The Upper Atmosphere Research Satellite that has been befuddling NASA scientists with its unpredictable reentry path has finally fallen back to Earth. We... just don't know where yet exactly. But you're safe to look up now. More »
NASA’s decommissioned Upper Atmosphere Research Satellite fell back to Earth between 11:23 p.m. EDT Friday, Sept. 23 and 1:09 a.m. EDT Sept. 24., the space agency said. The Joint Space Operations Center at Vandenberg Air Force Base in California said the satellite penetrated the atmosphere over the Pacific Ocean. The precise re-entry time and location [...]
NASA confirms that the Upper Atmosphere Research Satellite (UARS) has entered Earth’s atmosphere and burned up. This just in from Spaceflightnow.com 0720 GMT (3:20 a.m. EDT) RE-ENTRY CONFIRMED. The Upper Atmosphere Research Satellite, launched from the shuttle Discovery in 1991 … Continue reading ?
Lots of newsbuzz today on the Upper Atmosphere Research Satellite. Not since Skylab came down in 1979 has there been this much buzz over space junk burnup. I wonder if somebody will name their kid after it. Just hours before … Continue reading ?
The Upshot - Twenty years ago, NASA launched the Upper Atmosphere Research Satellite (UARS) from the Space Shuttle Discovery. The satellite finished its mission several years ago, but after its work was done, it took some time off, and has remained floating in space. But its hiatus ends any moment now, astronomers predict. After more than 7,000 days [...]