For years, scientists have worked to chart the universe’s massive structure, aiming to test key models of cosmology. These ...

KNOXVILLE, Tenn. — A fireball, captured on dashcam video from North Gallaher Road and I-40 in Knoxville, streaked across the ...

Astronomers detect an ultramassive black hole weighing 36 billion suns in the galaxy LRG 3-757, a record thanks to ...

Zahnle’s original cosmic shoreline captured the balance between incoming starlight and escape velocity and used that relationship to divide the airless and gas-cloaked planets in our solar system. But ...

Measuring the velocity and motion of 56,000 galaxies, the research reveals that our cosmic home, the Milky Way, is likely part of a 1,000 million light-year-wide basin of attraction called the ...

Astronomers have spotted the largest cosmic explosion ever witnessed. The cosmic event, which occurred about 8 billion light-years from Earth, is 10 times brighter than any known exploding star.

In 2007, astronomers discovered the Cosmic Horseshoe, a gravitationally lensed system of galaxies about 5.5 billion light-years away. The foreground galaxy's mass magnifies and distorts the image ...