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
|
|
Report outlines cost growth in canceled NASA exploration programs
Posted: Sat, Jun 27 11:14 AM ET (1514 GMT) Perseverance Mars rover finds more potential biosignatures
Posted: Sat, Jun 27 11:12 AM ET (1512 GMT) |
|
news links
|
|
Friday, July 3
Spectrum Battle Heats Up With Rocket Lab’s Iridium Deal
Aviation Week — 9:14 am ET (1314 GMT) Private space pilots are flying orbital missions for the US Space Force
TechCrunch — 9:14 am ET (1314 GMT) First Light, Next Steps—The Path Forged by NASA’s Lunar Reconnaissance Orbiter
USRA — 9:12 am ET (1312 GMT) Amazon has deployed enough satellites to launch Leo service later this year
CNBC — 9:10 am ET (1310 GMT) India’s Space Industry Hunts for Its SpaceX Moment
Bloomberg News — 9:10 am ET (1310 GMT) |
