Stellar evolution
The life cycle of a Sun-like star.Stellar evolution is the process by which a star changes during its lifetime. Depending on the mass of the star, this lifetime ranges from only a few million years ...
Stellar evolution - Wikipedia
Neutron stars collision creates one of the biggest explosions in the universe
When neutron stars collide they create one of the biggest explosions in the universe. Learn more about stars (besides their explosive power) on an all NEW How The Universe Works tonight at 8P.
Thousands of Black Holes May Exist At The Center Of Our Galaxy
Thousands of Black Holes May Exist At The Center Of Our Galaxy.
Something Big Came OUT Of A Black Hole Recently! Scientists Baffled 3/15/16
You don’t have to know a whole lot about science to know that black holes normally suck things in, not spew things out. But NASA detected something mighty bizarre at the supermassive black hole Markar...
Ripples of Gravity, Flashes of Light
More Info: On Aug. 17, 2017, the Laser Interferometer Gravitational-wave Obs...
Neutron Star Collision Simulation
Courtesy of NASA's Goddard Space Flight Center CI Lab
"The Black Hole Paradox" --New Theory Says Soon After Big Bang, Black Holes Lit Up the Universe
Soon after the Big Bang, the universe went completely dark. The intense, seminal event that created the cosmos churned up so much hot, thick gas that light was completely trapped. Much later—perhaps a...
Gamma-Ray Blazars Powered By Billion-Solar-Mass Black Holes Found
Using the Fermi Gamma-ray Space Telescopes, astronomers found 5 early universe gamma-ray blazars. Two of them were powered by “billion-solar-mass” black hole...
Astronomers find a ‘nearly-naked’ supermassive black hole
A close galactic encounter gave these astronomers an interesting discovery
The case for black holes being nothing but holograms just got even stronger
If anything can sum up just how little we truly know about the Universe, it’s black holes. We can’t see them because not even light can escape their gravitational pull, we have no idea what they’re ma...
X-ray Echoes Map a Black Hole’s Disk
Some 3.9 billion years ago in the heart of a distant galaxy, the tidal pull of a monster black hole shredded a star that wandered too close. X-rays produced ...
Hubble Captures The Beating Heart Of The Crab Nebula
Peering deep into the core of the Crab Nebula, this close-up image reveals the beating heart of one of the most historic and intensively studied remnants of a supernova — an exploding star.
Ancient and Young Water Worlds of the Cosmos --"NASA Pinpoints Water Vapor Around a Newly Forming Star"
A team of scientists using the Stratospheric Observatory for Infrared Astronomy (SOFIA) has pinpointed the amount and location of water vapor around a newly forming star with groundbreaking precision.
Soft hairs help resolve the black-hole information paradox
Stephen Hawking and colleagues claim partial solution to 40-year-old puzzle
Could black holes be the dark matter everyone has been looking for?
As we wait for more LIGO results, a maverick theory pops up
Something Big Came OUT Of A Black Hole Recently! Scientists Baffled 3/15/16
NASA-just-saw-something-come-out-black-hole-first-time-ever .
Star formation
Star formation is the process by which dense regions within molecular clouds in interstellar space, sometimes referred to as "stellar nurseries" or "star-forming regions", collapse to form stars. As a...
Star formation - Wikipedia
White dwarf
Artist's concept of white dwarf aging.A white dwarf, also called a degenerate dwarf, is a stellar remnant composed mostly of electron-degenerate matter. They are very dense; a white dwarf's mass ...
White dwarf - Wikipedia
Neutron star
The size of a neutron star compared to ManhattanA neutron star is a type of stellar remnant that can result from the gravitational collapse of a massive star after a supernova. Neutron stars are the...
Neutron star - Wikipedia
Black hole
A black hole is a mathematically defined region of spacetime exhibiting such a strong gravitational pull that no particle or electromagnetic radiation can escape from it. The theory of general relati...
Black hole - Wikipedia
Trapped null surface
A trapped null surface is a set of points defined in the context of general relativity as a closed surface on which outward-pointing light rays are actually converging (moving inwards).Trapped null su...
GRB 051221A
GRB 051221A was a gamma ray burst (GRB) that was detected by NASA's Swift Gamma-Ray Burst Mission on December 21, 2005. A gamma-ray burst is a highly luminous flash of gamma rays, the most energetic f...
Helium flash
A helium flash is the runaway fusion of helium in the core of low mass stars of less than about 2.25 solar masses (M☉) and greater than about 0.5 M☉, or on the surface of an accreting wh...
Kerr-Newman metric
The Kerr–Newman metric is a solution of the Einstein–Maxwell equations in general relativity that describes the spacetime geometry in the region surrounding a charged, rotating mass. This solution has...
NGC 1514
NGC 1514 is a planetary nebula that was discovered by William Herschel on November 13, 1790, describing it "A most singular phaenomenon" and forcing him to rethink his ideas on the construction of the...
NGC 1514 - Wikipedia
Stellar nucleosynthesis
Stellar nucleosynthesis is the process by which the natural abundances of the chemical elements within stars vary due to nuclear fusion reactions in the cores and overlying mantles of stars. Stars are...
Stellar nucleosynthesis - Wikipedia
Quasars (/ˈkweɪzɑr/) or quasi-stellar radio sources are the most energetic and distant members of a class of objects called active galactic nuclei (AGN). Quasars are extremely luminous and were first ...
Quasar - Wikipedia