description Cosmic Background Explorer Overview
The Cosmic Background Explorer (COBE) was a NASA space mission launched in 1989 to study the cosmic microwave background radiation. This ancient light represents the afterglow of the Big Bang and provides crucial data for cosmology. COBE’s measurements revealed subtle temperature variations within the CMB, offering insights into the early universe's structure formation. The findings are valuable for astronomers and cosmologists investigating the origins and evolution of our cosmos.
insights Why this score
Cosmic Background Explorer ranks #24 of 212 in the Space Mission ranking, behind Viking 1, ahead of Apollo 10.
help Cosmic Background Explorer FAQ
What did COBE discover about the cosmic microwave background?
COBE measured the background's spectrum with the FIRAS instrument and found it closely matches a 2.7-kelvin blackbody. Its DMR instrument also detected tiny temperature anisotropies that represented early density variations in the universe.
Which instruments flew on the Cosmic Background Explorer?
COBE carried three instruments: FIRAS, DMR, and DIRBE. They studied the microwave background spectrum, variations across the sky, and diffuse infrared emission.
How did COBE differ from WMAP and Planck?
COBE made the first space-based detection of large-scale microwave-background anisotropy. NASA's WMAP and ESA's Planck later mapped those variations at much finer angular resolution.
Did COBE lead to a Nobel Prize?
Yes. John C. Mather and George F. Smoot received the 2006 Nobel Prize in Physics for work connected to COBE's blackbody-spectrum and anisotropy discoveries.
explore Explore More
Similar to Cosmic Background Explorer
See all arrow_forward
Reviews & Comments
Write a Review
Be the first to review
Share your thoughts with the community and help others make better decisions.
