Astronomers see light from earliest stars
Posted: Thu, Nov 3, 2005, 7:50 AM ET (1250 GMT)
Astronomers announced Wednesday that they have detected light that may eminate from the universe's earliest stars. NASA's Spitzer Space Telescope detected the infrared light from "giant blobs" during extended observations in the direction of the constellation Draco. Astronomers believe the light comes from "Population 3" stars, a hypothesized class of stars not previously detected that were the first to form after the Big Bang. The stars were extremely large and short-lived, shining brightly at ultraviolet wavelengths that have redshifted to infrared bands because of the expansion of the universe. Alternatively, the light may come from hot gas falling into the universe's first black holes.
Astronomers announced Wednesday that they have detected light that may eminate from the universe's earliest stars. NASA's Spitzer Space Telescope detected the infrared light from "giant blobs" during extended observations in the direction of the constellation Draco. Astronomers believe the light comes from "Population 3" stars, a hypothesized class of stars not previously detected that were the first to form after the Big Bang. The stars were extremely large and short-lived, shining brightly at ultraviolet wavelengths that have redshifted to infrared bands because of the expansion of the universe. Alternatively, the light may come from hot gas falling into the universe's first black holes.
Related Links:
| <<previous article | next article>> |
|
news in brief
|
|
|
|
news links
|
|
Saturday, April 4
The US has declared ‘space superiority’ over Iran. What does that mean?
Defense One — 9:30 am ET (1330 GMT) Chandra Donelson departs as Space Force CDAO
Defensescoop — 9:30 am ET (1330 GMT) How the Space Force guaranteed a safe Artemis II launch
Military Times — 9:28 am ET (1328 GMT) White House Pitches Dramatic Space Force Budget Jump In 2027
Aviation Week — 9:28 am ET (1328 GMT) From Artemis to ULA, Space Force has hands full with 6 different rockets this year
Orlando Sentinel — 9:26 am ET (1326 GMT) |
