Spitzer Space Telescope Celebrates 10 Years of Astronomical Discovery

The infrared vision of NASA’s Spitzer Space Telescope has revealed that the Sombrero galaxy—named after its appearance in visible light to a wide-brimmed hat—is in fact two galaxies in one. Image Credit: NASA/JPL-Caltech

Ten years ago tonight, NASA’s fourth “Great Observatory”—the Space Infrared Telescope Facility (SIRTF)—was boosted into orbit from Cape Canaveral Air […]

Astronomy at the High Frontier

Hubble Space Telescope, as seen from the Shuttle Atlantis during the fourth servicing mission in May 2009. Photo Credit: NASA

The atmosphere is a problem for astronomers for two big reasons: it’s turbulent, so it smears out the light from cosmic objects, and it blocks out huge swathes of the electromagnetic spectrum. To […]