Press Release: Dead Stars Tell Story of Planet Birth

Astronomers have turned to an unexpected place to study the evolution of planets -- dead stars. more...

Astronomers: Cycle-6 Call for Proposals

The Spitzer Science Center at Caltech is pleased to announce the release of the Cycle-6 Call for Proposals, soliciting research proposals for Exploration Science General Observer (GO) programs, and regular GO programs. See: http://ssc.spitzer.caltech.edu/propkit/currentcp.html.

What's Happening: New Image Shows the Power of Visual Remix

The same way a visible-light photographer can choose to shoot black and white instead of color, astronomers using NASA's Spitzer Space Telescope have their choice of what colors to use or not use in their images. more...

Press Release: Astronomers Find the Two Dimmest Stellar Bulbs

It's a tie! The new record-holder for dimmest known star-like object in the universe goes to twin "failed" stars, or brown dwarfs, each of which shines feebly with only one millionth the light of our sun. more...
Also, hear the Dim Dwarfs podcast...

From CfA: Baby Jupiters Must Gain Weight Fast

Smithsonian astronomers examined the 5 million-year-old star cluster NGC 2362 with NASA's Spitzer Space Telescope, which can detect the signatures of actively forming planets in infrared light. more...

From CIW: Zeroing in on Hubble's Constant

In the early part of the 20th Century, Carnegie astronomer Edwin Hubble discovered that the universe is expanding. The rate of expansion is known as the Hubble constant. more...

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You can always know what's new on the Spitzer site with our XML RSS Feed, and you can now receive Spitzer news directly by joining our mailing list. more...