07 July 2014, 05:40 PM ET
The European Space Agency has selected the Athena X-ray observatory as its second "large-class" science mission. Athena — which will cost about 1 billion euros ($1.36 billion at current exchange rates) — is scheduled to blast off in 2028.
25 June 2014, 01:01 PM ET
Scientists have just discovered a distant galaxy with a trio of supermassive black holes at its core. The new finding suggests tight-knit groups of these giant black holes are far more common than previously thought.
17 June 2014, 03:10 PM ET
The two different classes of jet-spewing active galaxies called blazars may, in fact, be a single hybrid type that evolves over time, according to new research.
17 June 2014, 01:01 PM ET
The Chandra X-ray Observatory detected over 400 x-ray sources within the galaxy. Several of them are X-ray binary systems that contain a neutron star or black hole orbiting a Sun-like star. FULL STORY: http://goo.gl/Dt5Abv
15 June 2014, 07:48 AM ET
NASA's Chandra X-ray Observatory captured this new image of the galaxy Messier 51 using X-rays.
03 June 2014, 04:33 PM ET
Supermassive black holes at the cores of large galaxies can power bright jets of super-fast gas. Those spitting out the highest amount of energy are called ‘blazars.’ Astronomers believed there were 2 types but new evidence shows close relation.
27 May 2014, 10:57 AM ET
The "torus model" may be woefully inadequate when explaining what is actually going on.
14 May 2014, 07:28 AM ET
A single "runaway" star in a distant star cluster could explain how a massive supernova avoided collapsing into a black hole, leaving behind a remnant object instead.
13 May 2014, 06:00 PM ET
An amazing new NASA video shows two super-dense neutron stars tearing each other apart in a cataclysmic cosmic merger that ultimately forms a black hole.
13 May 2014, 11:09 AM ET
In this simulation, 2 neutron stars weigh in at 1.4 and 1.7 solar masses and are separated by only 11 miles. Intense tidal forces pull the stars apart as they spiral towards each other and the black hole is formed amidst the chaos.
07 May 2014, 06:00 AM ET
The Earth and moon can serve as giant detectors for ripples in the fabric of space-time known as gravitational waves, which are given off by stars, black holes and other massive objects in deep space, researchers say.
06 May 2014, 07:01 AM ET
Two new computer simulations are providing detailed insights about the cosmos, shedding light on dramatic star explosions and the Big Bang that created the universe nearly 14 billion years ago.
01 May 2014, 04:54 PM ET
Through simulations of twisting magnetic fields around collapsing cores of massive stars, Caltech astrophysicists study the previously puzzling appearance of certain double-lobed remnant nebulae. Such fields may contribute to black hole formation.
30 April 2014, 12:11 PM ET
The most powerful particle accelerator in the world, the Large Hadron Collider, has not yet created any black holes as some have feared, researchers say. Even it did, there is no danger of those black holes destroying Earth, scientists find.
30 April 2014, 07:09 AM ET
Scientists have been on the hunt for dark matter for decades. A new hypothesis now suggests that the strange invisible stuff could be made of microscopic, or quantum, black hole atoms.
22 April 2014, 02:00 PM ET
Why can't anything travel faster than the speed of light? Do black holes really suck? And why is the universe expanding? These are just a few of the questions author and astrophysicist Jeffrey Bennett answers in his new book, "What is Relativity?"
22 April 2014, 02:00 PM ET
Many people with a basic knowledge of physics know that Einstein developed the theory of relativity, yet few people actually understand what it means. But author and astrophysicist Jeffrey Bennett relativity should be something anyone can understand.
15 April 2014, 12:52 PM ET
A newly released documentary brings the hunt for ripples in the fabric of space-time — called gravitational waves — into focus, and you can watch it live on Space.com.
15 April 2014, 09:35 AM ET
On Tuesday (April 15), Space.com will premiere a new documentary "LIGO, A Passion for Understanding" by filmmaker Kai Staats, which follows scientists using the Laser Interferometer Gravitational-wave Observatories (LIGO) to hunt for gravitational waves.
14 April 2014, 12:14 PM ET
A powerful scientific tool set to come online in 2015 could help scientists spot gravitational waves, ripples in space-time born from violent cosmic crashes light-years from Earth.
11 April 2014, 01:00 PM ET
The ripples from violent cosmic collisions can be felt far across the universe, and thanks to a new, sensitive detector expected to start collecting data next year, scientists might be able to see evidence of those ripples from Earth for the first time.
10 April 2014, 07:00 AM ET
While the supernova remnant, known as DEM L241, has been known since the 1970s, the companion star remained invisible until NASA's Chandra X-Ray Observatory recently examined the region.
09 April 2014, 03:18 PM ET
When two stars collide or a massive star blows up the fabric of the universe warps and springs back, sending gravitational waves across the cosmos. The wave motion would be very tiny. But to watch it, scientists must build very large instruments.
01 April 2014, 10:38 AM ET
A new movie premiering April 15 documents the science and people behind an amazing astronomical tool designed to catch sight of incredible, violent cosmic events trillions of miles from Earth.
31 March 2014, 11:57 AM ET
A close look by NASA's Chandra X-ray Observatory at the debris field of supernova explosion DEM L241 in the Large Magellanic Cloud has revealed a young star tightly orbiting either a tiny neutron star or a black hole. Read more: http://goo.gl/xT14vA
28 March 2014, 11:45 AM ET
The central black holes in dwarf galaxies — the "seeds" that grow into the monsters at the core of the Milky Way and other large galaxies — are probably surprisingly weighty, containing 1,000 to 10,000 times the mass of our sun, a new study reports.
28 March 2014, 11:15 AM ET
Host Neil deGrasse Tyson will explore the ways light, time and gravity effect our perceptions of the universe as he travels faster than the speed of light and into the depths of a black hole on the next episode of Cosmos: A Sky Full of Ghosts.
20 March 2014, 08:07 PM ET
As the search effort for the missing Malaysia Flight MH370 continues, some questionable theories are being floated for the strange disappearance of the passenger jet, including — it seems — black holes.
17 March 2014, 10:45 AM ET
Gravitational waves are the "smoking gun" of the Big Bang. Predicted by Albert Einstein's theory of general relativity in 1916, a massive object like Earth distorts space-time around it like a bowling ball dropped on a trampoline.
13 March 2014, 07:46 AM ET
Hundreds of “rogue” wandering black holes may dwell in the Milky Way – and now Harvard University researchers say they know how to detect them. The discovery of these strange objects could shed light on the formation of the Milky Way and other galaxies.
05 March 2014, 03:20 PM ET
Astronomers have calculated how fast a distant supermassive black hole rotates, clocking it at nearly half the speed of light. A fortuitious lineup of cosmic objects allowed scientists to measure the mind-boggling spin rate.
04 March 2014, 07:00 AM ET
Inside black holes dwell quantum remains of the stars from which they were formed, say a group of scientists, who also predict that these stars can later emerge once the black hole evaporates.
28 February 2014, 03:30 PM ET
This space wallpaper is a view of the microquasar MQ1—a black hole in the galaxy M83—as it appeared to the Hubble Space Telescope's Wide Field Camera 3.
27 February 2014, 02:05 PM ET
Black holes can blast their surroundings with much stronger winds than previously thought, scientists say. The discovery will help better model the evolution of black holes over time, and help uncover the huge influence they can have on host galaxies.
27 February 2014, 09:38 AM ET
This cool space wallpaper shows a composite view of the giant elliptical galaxy NGC 1399. The stellar component, as observed at optical wavelengths, is shown in white at the center of the image.
26 February 2014, 11:58 AM ET
Powerful jets generated by supermassive black holes could be quenching star formation in elliptical galaxies, forcing them to appear "red and dead," a new study reports.