This dark, tangled web spotted by NASA’s Hubble Space Telescope is a supernova remnant, created after a massive star ended its life in an explosion and threw its constituent material out into surrounding space. Discover more: https://go.nasa.gov/2G0nVgS&h=AT0m92-1V7h2Z6pdebGy-JSLFW…CsgI5QIBpg
Archive for the ‘cosmology’ category: Page 345
Nov 29, 2018
If Light Can’t Escape Black Holes, How Do We Get Photos of Them… and More Questions From Our Readers
Posted by Genevieve Klien in category: cosmology
Nov 25, 2018
Unexpectedly Vanishing Quasars Are Mystifying Scientists
Posted by Genevieve Klien in category: cosmology
Quasars powered by supermassive black holes have been unexpectedly vanishing. Scientists have started to figure out why.
Nov 23, 2018
You’ve got to move fast on #BlackFriday2018 when there are limited quantities
Posted by Michael Lance in categories: cosmology, materials
Here’s a look at fast-moving jet material from the powerful gravity of a supermassive black hole when a star wandered just a little too close: https://go.nasa.gov/2FAO1XB #BlackHoleFriday
Nov 22, 2018
Massive Triple Star System Creates this Bizarre Swirling Pinwheel of Dust. And it Could be the Site of a Gamma Ray Burst
Posted by Genevieve Klien in category: cosmology
When stars reach the end of their lifespan, many undergo gravitational collapse and explode into a supernova, In some cases, they collapse to become black holes and release a tremendous amount of energy in a short amount of time. These are what is known as gamma-ray bursts (GRBs), and they are one of the most powerful events in the known Universe.
Recently, an international team of astronomers was able to capture an image of a newly-discovered triple star system surrounded by a “pinwheel” of dust. This system, nicknamed “Apep”, is located roughly 8,000 light years from Earth and destined to become a long-duration GRB. In addition, it is the first of its kind to be discovered in our galaxy.
Nov 22, 2018
It’s #BlackFriday, but we don’t do much shopping in space
Posted by Michael Lance in category: cosmology
It’s #BlackFriday, but we don’t do much shopping in space. Instead, join us for our 6th annual #BlackHoleFriday where we’ll share awesome images and facts about black holes! https://go.nasa.gov/2FB9qQD
Nov 21, 2018
‘God of chaos’: Milky Way star on the brink of massive gamma-ray supernova explosion
Posted by Michael Lance in category: cosmology
A star 8,000 light years from Earth is on the verge of a huge supernova explosion, which could produce the Milky Way’s first gamma-ray explosion, a dangerous and extremely energetic event.
Australian scientists at the University of Sydney discovered the rare ‘God of chaos’ star, which they say could produce the Milky Way’s first known gamma-ray burst, a lethal combination of dust and gas mixed with wind as fast as 12 million km/ph, which is one of the most extreme energetic events after the Big Bang.
Nov 21, 2018
What do sand, glass ⌛ and this technicolor remnant of a supernova 💥 have in common?
Posted by Michael Lance in categories: cosmology, materials
They all contain silica, a mineral that’s widespread on Earth and in space.
Using NASA’s Spitzer Space Telescope, researchers found that the material is produced by the massive explosions of stars. Details: https://go.nasa.gov/2r6Zq7P
Nov 21, 2018
Why Changing-Look Quasars Appear to Vanish
Posted by Genevieve Klien in category: cosmology
Quasars powered by supermassive black holes have been unexpectedly vanishing. Scientists have started to figure out why.
When a massive star somewhere in our galaxy runs out of fuel, it collapses and explodes in a supernova.
The death of that star is the birth of a neutron star: one of the densest known objects in the universe: