quasars

Scientists decipher plot of the universe; largest map created!

Scientists decipher plot of the universe; largest map created!

In order to make their map, scientists used the Sloan Foundation Telescope to observe an unprecedented number of quasars.

May 21, 2017, 15:46 PM IST

'Messy' teenage years of quasars unveiled

Astronomers have uncovered the mysterious early formative years of quasars, the brightest objects in the universe, using the Hubble Space Telescope's infrared vision.

Jun 22, 2015, 17:38 PM IST
NASA's Hubble finds formative years of quasars

NASA's Hubble finds formative years of quasars

 By using Hubble Space Telescopes infrared vision, astronomers have uncovered the mysterious early formative years of quasars, the brightest objects in the universe.

Jun 20, 2015, 11:28 AM IST

Even teenage Quasars are 'hot mess'

Astronomers recently observed quasars in their teenage years, when they are emerging quickly and all messed up with the help of Hubble Space Telescope.

Jun 19, 2015, 20:54 PM IST
Hubble finds giant objects near dead quasars

Hubble finds giant objects near dead quasars

NASA's Hubble space telescope has clicked a set of wispy, goblin-green objects that are the ephemeral ghosts of quasars that flickered to life and then faded.

Apr 03, 2015, 11:01 AM IST

Newly discovered 'monster black hole' is largest and brightest ever

A team of scientists has discovered the brightest quasar in the early universe, powered by the most massive black hole yet known at that time.

Feb 26, 2015, 15:07 PM IST
New class of telescope helps reveal existence of 'quiet' quasars

New class of telescope helps reveal existence of 'quiet' quasars

Scientists have discovered a group of 'quiet' quasars that evolved slowly, with the help of the Gran Telescopio Canarias (GTC) telescope.

Oct 30, 2014, 13:57 PM IST
Mystery behind brightest objects in universe solved

Mystery behind brightest objects in universe solved

Quasars are the brightest objects in the universe and display a mysterious diversity in their appearance that has puzzled astronomers for over two decades. Scientists believe that the mystery can now be solved.

Sep 14, 2014, 15:26 PM IST
What brightens up the universe?

What brightens up the universe?

 Does ultraviolet light, that bathes the cosmos, come from numerous but faint galaxies or from a smaller number of quasars? The answer may not be too far in the future.

Aug 27, 2014, 19:38 PM IST

Quasars over 1000 times brighter than Milky Way stars

Powered by massive black holes at the center of most known galaxies, quasars can emit enormous amounts of energy, up to a thousand times the total output of the hundreds of billions of stars in our entire Milky Way.

Jul 25, 2013, 20:31 PM IST

Quasars to help scientists map structure of universe

Researchers have found a possible way to map the spread and structure of the universe, guided by the light of quasars.

Sep 19, 2012, 15:39 PM IST

Most quasars powered by black holes live on snacks, not large meals

Quasars are the brilliant beacons of light that are powered by black holes feasting on captured material, and in the process, heating some of the matter to millions of degrees.

Jun 20, 2012, 12:06 PM IST

NASA’s Hubble discovers quasars acting as gravitational lenses

Quasars are among the brightest objects in the universe, far outshining the total starlight of their host galaxies.

Mar 16, 2012, 13:22 PM IST

Largest-ever 3D map of distant universe `created`

The map was made using light from 14K quasars with the 3rd Sloan Digital Sky Survey.

May 02, 2011, 23:40 PM IST