|
Education
Web
Viewing 1-8 of 8 total results
The enigmatic fingerprints of gamma-ray bursts
of bursts." Left: The Compton Gamma Ray Observatory is deployed by the Space Shuttle in April 1991. Four of the eight BATSE instruments can be seen at the spacecraft's corners. The other four are on the opposite face. (NASA) Giblin will outline his study today at the Americ...
Search for Counterparts is Frustrating (and other stories)
rays. We have observed fading counterparts in radio, optical, and X-rays." Hurley reviewed the search for counterparts to bursts at the Fourth Biennial Huntsville Gamma Ray Burst Symposium hosted by NASA's Marshall Space Flight Center. On Thursday, scientists will discuss t...
Hubble Confirms Fading Burst Source
Twinkle, Twinkle, Massive Fireball Astronomy that Almost Didn't Happen And Then There Were Four September 18: Search for Counterparts is Frustrating The Line of Death, Ignoring Theories, and Other Stops in the Hunt for Bursts Searching from the LOTIS position September 17: Hub...
Solar flares show their true colors
channels, providing multiple 16-channel snapshots of a flare each second. Newton took a ratio of the brightness in lower energy channels and the ratio of brightness in the higher energy channels, and plotted the two ratios against each o...
Fading embers hold clues to puzzle of gamma-ray bursts
direct redshift/distance measurements for gamma-ray bursts, and sealed the answer to a decade-long question of "How far away are the bursts?" The answer is typically several billion light years, putting bursts near the edge of the observable universe. Since March 1997,...
Landsat 7 starts viewing the the world
TM was introduced on Landsats 4 and 5. Replacing MSS and TM , the ETM+ greatly improves upon the earlier instruments. Left: A contrail (condensation trail) from a jet casts a shadow over the American plains. Links to 512x257-pixel, 132KB JPG. Credit: NASA and US...
Gamma-ray Bursts are in top 100
and cause of mysterious gamma ray bursts has been named by Discover magazine as one of the Top 100 stories of 1997, and by Science magazine as one of the Top 10. Since the late 1960s, scientists have puzzled over the cause of bursts of g...
Stepping back to get a closer view
Atlanta led to 1998's Urban Heat Island Pilot Project (UHIPP) which conducted similar measurements over Baton Rouge, Sacramento, and Salt Lake City. Right: An image from the Landsat 5 thermal channel (top) is shows how hot areas (red) correspond with urban areas (gray) in the fa...
|
