Measuring the Big Bang with the COBE satellite
NASA
February 18, 2026
By John Mather The Cosmic Background Explorer satellite (COBE) went up on a Delta rocket on Nov. 18, 1989, into a polar sun-synchronous orbit 900 km up. Our team at NASA Goddard Space Flight Center (GSFC), Ball Aerospace, the Jet Propulsion Laboratory (JPL) and universities built it to look at the cosmic microwave and infrared […]
Verticals
spacescience
Originally published on NASA on 2/18/2026