Due to the lapse in federal government funding, NASA is not updating this website.

Suggested Searches

WMAP

NASA's WMAP (Wilkinson Microwave Anisotropy Probe) spacecraft measured temperature differences across the sky in the cosmic microwave background radiation, a remnant of the big bang.

Type

Space telescope

Launch

June 30, 2001

Wavelength

Microwaves

operations ceased

Aug. 19, 2010
Learn more about WMAP
Artist's concept of the WMAP (Wilkinson Microwave Anisotropy Probe)
Credit: NASA/WMAP Science Team

Latest NASA News

Explore All NASA News
Article
4 Min Read

October’s Night Sky Notes: Let’s Go, LIGO!

News Release
2 Min Read

NASA, Blue Origin Invite Media to Attend Mars Mission Launch

2 Min Read

NASA Draws Closer to Artemis II Rocket Completion with Newest Addition

Blog
3 Min Read

NASA, International Partners Deepen Commitment to Artemis Accords

News Release
3 Min Read

What’s Up: October 2025 Skywatching Tips from NASA

Article
Keep Exploring

Discover More Topics From NASA

James Webb Space Telescope

Webb is the premier observatory of the next decade, serving thousands of astronomers worldwide. It studies every phase in the…

Perseverance Rover

This rover and its aerial sidekick were assigned to study the geology of Mars and seek signs of ancient microbial…

Parker Solar Probe

On a mission to “touch the Sun,” NASA's Parker Solar Probe became the first spacecraft to fly through the corona…

Juno

NASA’s Juno spacecraft entered orbit around Jupiter in 2016, the first explorer to peer below the planet's dense clouds to…