The “Dark Ages” of the universe started about 400,000 years after the big bang, after matter cooled down enough for neutral atoms to form.
To celebrate the one-year anniversary of the launch of NASA’s Wide-Field Infrared Explorer, or WISE, the mission team has put together this image showing just
To celebrate the 21st anniversary of the Hubble Space Telescope’s deployment into space, astronomers at the Space Telescope Science Institute in Baltimore, Md., pointed Hubble’s
One trillion years from now, alien astronomers in our galaxy will have a difficult time figuring out how the universe began. They won’t have the
This image from the Gemini South telescope in Chile captures a pair of galaxies locked in a graceful waltz that will eventually bring the two
A hidden galaxy may be just beyond the Milky Way, part of which is shown over California’s Mount Lassen.
Astronomers using NASA’s Chandra X-ray Observatory and ESA’s XMM-Newton detected a vast reservoir of gas lying along a wall-shaped structure of galaxies about
This view of the Cartwheel galaxy was created by combining images captured by four space telescopes: Galaxy Evolution Explorer, Hubble Space Telescope, Spitzer Space Telescope,