Astronomy Picture of the Day offers a map spanning ten degrees of the sky that resolves the microwave background into hot and cold spots.

Wide-angle radio carbon monoxide image provides a glimpse of the interstellar medium and its movement. Offered by Astronomy Picture of the Day.

Image from the Gemini North telescope in Hawaii reveals a bow shock dubbed IRS8 at the center of the Milky Way Galaxy.

Graph of the data which resulted in the accidental discovery by the Vela satellites of gamma ray bursts in the late 1960s.

Simulated image represents how the sky might appear to the Gamma-ray Large Area Space Telescope after its first year in orbit.

Astronomy Picture of the Day offers two images of the microwave sky displaying the oldest structures known. Data from the COBE satellite.

Study an image of the x-ray sky, produced from a survey conducted by the orbiting ROSAT observatory. Provided by Astronomy Picture of the Day.

Image from Astronomy Picture of the Day reveals GRB000131, the remnants of a massive explosion of gamma rays on January 31, 2000.

Photograph reveals the 27 radio telescopes in the Very Large Array in a formation in front of Tres Montosas in New Mexico.

False-color detail of an x-ray picture taken from the orbiting Chandra Observatory provides evidence for middle mass black holes.

Image taken by the orbiting XMM-Newton telescope shows the universe's x-ray sky. Learn about the presumed connection with massive black holes.

Analyze a computer simulation of Lyman-alpha clouds, trees of hydrogen gas that absorb light from distant objects.

Study an image representing an all-sky neutral hydrogen atom survey. Includes an explanation of what the false-color image shows.

Study the sky map of gamma-ray burst locations produced by the BATSE modules that flew on the Compton Gamma Ray Observatory.

Image pieced together by data from the COBE satellite highlights the dust in the universe, glowing in the far-infrared light.