Quantcast

Latest THEMIS Stories

4420b68d2c9ffbc7976af19933b1afc31
2010-04-28 13:50:00

Asteroids, once thought as dry and lifeless, may be home to water and organic materials, also known as the building blocks of life Asteroids may not be the dark, dry, lifeless chunks of rock scientists have long thought. Josh Emery, research assistant professor with the earth and planetary sciences department at the University of Tennessee, Knoxville, has found evidence of water ice and organic material on the asteroid 24 Themis. This evidence supports the idea that asteroids could be...

645ebd12d3220407d8a043475adf65fb1
2009-12-17 12:15:00

A network of cameras deployed around the Arctic in support of NASA's THEMIS mission has made a startling discovery about the Northern Lights. Sometimes, vast curtains of aurora borealis collide, producing spectacular outbursts of light. Movies of the phenomenon were unveiled at the Fall meeting of the American Geophysical Union today in San Francisco. "Our jaws dropped when we saw the movies for the first time," says space scientist Larry Lyons of UCLA, a leading member of the team that made...

5a8230b59be251224a26ad76fff425761
2009-08-28 14:25:00

In 1959, only two years after the Soviet Union launched Sputnik and ignited the space race, the University of California, Berkeley, created a laboratory devoted to space science that has grown to be one of the most active academic space research labs in the country.Now celebrating its 50th anniversary, UC Berkeley's Space Sciences Laboratory (SSL) has provided instruments for 75 satellites, two dozen rockets, nearly 200 balloon flights and numerous ground-based experiments. Eight of the...

2009-05-28 11:15:00

GREENBELT, Md., May 28 /PRNewswire-USNewswire/ -- Using data from NASA's THEMIS mission, a team of University of Alberta researchers has pinpointed the impact epicenter of an earthbound space storm as it crashes into the atmosphere, and given an advance warning of its arrival. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) The team's study reveals that magnetic blast waves can be used to pinpoint and predict the location where space storms dissipate their massive amounts of...

992a8013d06f072cb57f643068940aaf1
2009-05-28 10:36:04

Using data from NASA's THEMIS mission, a team of University of Alberta researchers has pinpointed the impact epicenter of an earthbound space storm as it crashes into the atmosphere, and given an advance warning of its arrival. The team's study reveals that magnetic blast waves can be used to pinpoint and predict the location where space storms dissipate their massive amounts of energy. These storms can dump the equivalent of 50 gigawatts of power, or the output of 10 of the world's largest...

2009-05-08 12:30:00

GREENBELT, Md., May 8 /PRNewswire-USNewswire/ -- Scientists using NASA's fleet of THEMIS spacecraft have discovered how radio waves produced by electrons injected into Earth's near-space environment both generate and remove high-speed "killer" electrons. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) Killer electrons are born within Earth's natural radiation belts, called the Van Allen belts after their discoverer, James Van Allen. Killer electrons are mostly found in the...

30cb94c2b45a55514980584f0a7844db1
2009-04-28 08:43:34

Earth-bound tornadoes are puny compared to "space tornadoes," which span a volume as large as Earth and produce electrical currents exceeding 100,000 amperes, according to new observations by a suite of five NASA space probes. The probe cluster, called Time History of Events and Macroscale Interactions during Substorms (THEMIS), recorded the extent and power of these electrical funnels as the probes passed through them during their orbit of Earth. Ground measurements showed that the space...

fa91dc445ed7fda90efff0614d242a291
2009-04-09 15:45:00

Keeping an unsleeping eye on the phenomena that cause the aurora An international scientific consortium has successfully developed a series of autonomous observatories in Antarctica that for the first time provide critical year-round "space weather" data from the Earth's harshest environment. Recently, data from these observatories were used in conjunction with the National Aeronautics and Space Administration's array of THEMIS satellites to reveal new information about magnetospheric...

2009-01-26 13:23:00

NASA "Rocket Scientist" presents program on the science of the Northern Lights WASHINGTON, Jan. 26 /PRNewswire-USNewswire/ -- On Thursday, January 29 at noon, the National Archives will celebrate the 50th Anniversary of Alaska Statehood with a program on the northern lights. The lecture, presented by NASA astrophysicist, Dr. John Sigwarth, will take place in the William G. McGowan Theater of the National Archives Building in Washington, DC, located on the National Mall at Constitution Ave....

577070ce410a9f8e4c95aa901c40e40d1
2008-12-17 10:10:00

Researchers announced on Thursday that current satellite surveillance has exposed the biggest breach ever seen in the magnetic field that shields the Earth from the majority of the sun's aggressive rays. The unearthing was found last summer by Themis, a group of five NASA satellites. Scientists have known for a long time that the Earth's magnetic field, which protects us from harsh space weather, is comparable to an older home lets in brutal eruptions of charged particles from the sun. This...


Word of the Day
cock-a-hoop
  • Exultant; jubilant; triumphant; on the high horse.
  • Tipsy; slightly intoxicated.
This word may come from the phrase 'to set cock on hoop,' or 'to drink festively.' Its origin otherwise is unclear. A theory, according to the Word Detective, is that it's a 'transliteration of the French phrase 'coq a huppe,' meaning a rooster displaying its crest ('huppe') in a pose of proud defiance.' Therefore, 'cock-a-hoop' would 'liken a drunken man to a boastful and aggressive rooster.'
Related