Search results for quasar

Astronomy Apr 15, 2024

The brightest gamma ray burst ever seen came from a collapsing star

After a journey lasting about two billion years, photons from an extremely energetic gamma-ray burst (GRB) struck the sensors on the Neil Gehrels Swift Observatory and the Fermi Gamma-Ray Space Telescope on October 9th, 2022. ...

Astronomy Apr 7, 2024

The universe's accelerated expansion might be slowing down

The universe is still expanding at an accelerating rate, but it may have slowed down recently compared to a few billion years ago, early results from the most precise measurement of its evolution yet suggested Thursday.

Astronomy Apr 6, 2024

DESI first-year data delivers unprecedented measurements of expanding universe

Scientists have analyzed the first batch of data from the Dark Energy Spectroscopic Instrument's quest to map the universe and unravel the mysteries of dark energy.

Astronomy Apr 4, 2024

Researchers use the Dark Energy Spectroscopic Instrument to make the largest 3D map of our universe

With 5,000 tiny robots in a mountaintop telescope, researchers can look 11 billion years into the past. The light from far-flung objects in space is just now reaching the Dark Energy Spectroscopic Instrument (DESI), enabling ...

Astronomy Apr 3, 2024

Eclipses make the sun's gravitational light bending visible

During night-like conditions created during the totality of a solar eclipse, like that of April 8, planets and stars are visible. Venus and Jupiter, bracketing the sun, will be very noticeable, while Mercury will be rather ...

Astronomy Apr 3, 2024

Luminous quasar PDS 456 explored with MUSE

Using the Multi Unit Spectroscopic Explorer (MUSE) at the Very Large Telescope (VLT) in Chile, an international team of astronomers has inspected a luminous quasar known as PDS 456. Results of the observational campaign, ...

Other Mar 23, 2024

Saturday Citations: An anemic galaxy and a black hole with no influence. Also: A really cute bug

If you missed some of our top stories this week, we have you covered. From an underachieving black hole to a new species of fluffy beetle, you can see it all here.

Astronomy Mar 21, 2024

NASA's Chandra identifies an underachieving black hole

Astronomers have revealed that a brilliant supermassive black hole is not living up to expectations. Although it is responsible for high levels of radiation and powerful jets, this giant black hole is not as influential as ...

Astronomy Mar 18, 2024

Largest-ever map of universe's active supermassive black holes released

Astronomers have charted the largest-ever volume of the universe with a new map of active supermassive black holes living at the centers of galaxies. Called quasars, the gas-gobbling black holes are, ironically, some of the ...

Astronomy Mar 7, 2024

'Baby quasars': James Webb Space Telescope spots little giants in the deep past

The James Webb Space Telescope has made one of the most unexpected findings within its first year of service: A high number of faint little red dots in the distant universe could change the way we understand the genesis of ...

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