The Coming of the Cosmic Old Age: New Survey Finds the Universe's Energy Output Is Decreasing With Time

A composite image of a galaxy as seen in different wavelengths by the GAMA survey. The results of the survey, which studied more than 200,000 galaxies in the local Universe, revealed that the latter’s total energy output has decreased by at least 50 percent during the last 2 billion years. Image Credit: ICRAR/GAMA […]

GALEX Retired After a Decade of Service to Space Science

The Andromeda galaxy, M31, observed by the now-retired ultraviolet space telescope GALEX. This composite image is false-colored, with blue representing far ultraviolet and orange representing near ultraviolet. Image Credit: NASA/JPL – Caltech.

GALEX, the Galaxy Evolution Explorer, was recently decommissioned by NASA after more than 10 years of operation. GALEX was a space […]

Gravity-Bending Find Leads to Kepler Meeting Einstein

This artist’s concept depicts a dense, dead star called a white dwarf crossing in front of a small, red star. The white dwarf”s gravity is so great it bends and magnifies light from the red star. Image credit: NASA/JPL-Caltech

NASA’s Kepler space telescope has witnessed the effects of a dead star bending the […]

NASA'S GALEX Reveals the Largest-Known Spiral Galaxy

Photo Credit: NASA / JPL

PASADENA, Calif. — The spectacular barred spiral galaxy NGC 6872 has ranked among the biggest stellar systems for decades. Now a team of astronomers from the United States, Chile, and Brazil has crowned it the largest known spiral, based on archival data from NASA’s Galaxy Evolution Explorer (GALEX) […]