12 June 2013, 07:22 PM ET
Andromeda has more known black holes than any galaxy besides the Milky Way.
06 June 2013, 04:35 PM ET
These pioneers may have served as seeds for the supermassive black holes at the hearts of galaxies today.
30 May 2013, 10:45 AM ET
A stunning composite image of a galaxy 850 million light years away shows a black hole emanating two powerful jets.
29 May 2013, 07:00 AM ET
If time is real, the laws of nature may evolve over time, Smolin says.
25 April 2013, 09:09 AM ET
The heat from newborn stars creates a halo of gas around its parent galaxy. When a distant galaxy's black hole-powered light is absorbed by the gas, the Hubble Space Telescope's Cosmic Origins Spectrograph (COS) can detect it.
09 April 2013, 03:31 PM ET
Astronomers have caught a black hole snacking on what may be a free-flying giant planet.
02 April 2013, 09:26 AM ET
Astronomers have detected a black hole consuming the outer layers of a brown dwarf or a giant planet. Observations of galaxy NGC 4845 by ESA's Integral Space Observatory and XMM-Newton revealed an x-ray flare consistent with black hole activity.
20 March 2013, 10:29 AM ET
Astronomers have spotted a star in our galaxy that races around a black hole at a breakneck speed, orbiting once every 2.4 hours.
19 March 2013, 11:20 AM ET
Europe’s XMM-Newton space telescope has helped to identify a star and a black hole that orbit each other at the dizzying rate of once every 2.4 hours, smashing the previous record by nearly an hour.
15 March 2013, 04:30 PM ET
Schmidt discusses quasars, their impact on astronomy and the anniversary of his seminal find.
13 March 2013, 02:02 PM ET
Astronomers still lack a basic understanding of how these incredibly bright objects work.
06 March 2013, 11:55 AM ET
The Milky Way's central black hole is in for a tasty treat.
28 February 2013, 02:02 PM ET
An unusual vertical column hides the black hole in an X-ray binary system with a rare orientation.
27 February 2013, 01:05 PM ET
The discovery could help astronomers better understand how these behemoths grow.
27 February 2013, 06:21 AM ET
The findings are based on observations made by the NuSTAR and XMM-Newton space telescopes.
25 February 2013, 12:03 AM ET
This space wallpaper from ESO’s VISTA telescope reveals a celestial landscape of vast, glowing clouds of gas and tendrils of dust surrounding hot young stars. This infrared view reveals the stellar nursery known as NGC 6357 in a new light.
24 February 2013, 11:28 PM ET
This artist’s impression shows the material ejected from the region around the supermassive black hole in the quasar SDSS J1106+1939 in this cool space wallpaper.
15 February 2013, 07:00 AM ET
The warped leftovers of an exploded star could be hiding what is possibly the youngest black hole in our galaxy.
12 February 2013, 07:01 PM ET
Giant black holes are famous for their appetites, but these matter-munching monsters are even greedier than scientists had thought.
06 February 2013, 11:01 AM ET
This gorgeous pink galaxy hides a gorging black hole.
30 January 2013, 01:01 PM ET
Swirling gas around black holes provides the key.
29 January 2013, 10:33 AM ET
When a super-massive star dies, it's corpse collapses into a knot so tight not even light can escape. And this drain on the fabric of the Universe can alter the shape of space and shift the flow of time. World-recognized experts explain.
18 January 2013, 05:12 PM ET
Black holes are strange regions where gravity is strong enough to bend light, warp space and distort time.
18 January 2013, 12:30 PM ET
Using the Karl G. Jansky Very Large Array, scientists have imaged a 20,000-year-old supernova remnant that resembles a manatee. The gas clouds have been pushed outward by a microquasar deep within the nebula.
18 January 2013, 06:00 AM ET
Black holes will look crescent-shaped, researchers say.
11 January 2013, 04:01 AM ET
The clump of quasars stretches 4 billion light-years from end to end.
08 January 2013, 11:43 AM ET
A beautiful image of Cassiopeia-A taken with a new X-ray space telescope reveals the explosive death of a star in unprecedented detail.
24 December 2012, 07:00 AM ET
A brief rundown of some of the year's record-breaking astronomical finds.
19 December 2012, 03:12 PM ET
Ultramassive black holes can weigh millions to billions of times the mass of the sun.
18 December 2012, 06:32 PM ET
X-ray telescopes have helped uncover previously unknown, giant black holes right in our cosmic backyard.
18 December 2012, 02:55 PM ET
A new study of the some of the biggest known black holes has concluded with new estimates in size. 10 of the 18 surveyed could be 10 to 40 billion times more massive than our Sun.
13 December 2012, 02:01 PM ET
The relativistic jets created by ancient supermassive black holes and tiny baby ones are more similar than previously realized.
12 December 2012, 01:01 PM ET
The object, called a microquasar, is the first discovered beyond the Milky Way.
12 December 2012, 10:40 AM ET
Astronomers have put together an amazing new image of elliptical galaxy Hercules A.
06 December 2012, 09:34 AM ET
At 12.4 billion light years from Earth, the enormous jet gives astronomers a peek at the life of giant black holes that existed not long after the Big Bang.
05 December 2012, 11:15 AM ET
The brightest object in the early universe is helping to shine light on conditions soon after the Big Bang.