Active Galaxies

Active Galaxies
Fermi Gamma-Ray Space Telescope
Galaxies
The Universe
Did you know some of the brightest sources of light in the sky come from the regions around black holes in the centers of galaxies? It sounds a little contradictory, but it’s true! They may not look bright to our eyes, but satellites have spotted oodles of them across the universe.  One of those satellites […]
Posted April 30, 2025
Active Galaxies
Astrophysics
Black Holes
Galaxies
Galaxies, Stars, & Black Holes Research
Goddard Space Flight Center
International Space Station (ISS)
Neutron Stars
NICER (Neutron star Interior Composition Explorer)
Pulsars
Science & Research
Stars
The Universe
Jan. 24, 2025 NASA’s NICER Continues Science Operations Post Repair NASA crew aboard the International Space Station installed patches to the agency’s NICER (Neutron star Interior Composition Explorer) mission during a spacewalk on Jan. 16.
Posted January 24, 2025
Active Galaxies
Astrophysics
Astrophysics Division
Goddard Space Flight Center
Hubble Space Telescope
Quasars
The night sky has always played a crucial role in navigation, from early ocean crossings to modern GPS. Besides stars, the United States Navy uses quasars as beacons. Quasars are distant galaxies with supermassive black holes, surrounded by brilliantly hot disks of swirling gas that can blast off jets of material.
Posted January 13, 2025
Active Galaxies
Astrophysics
Galaxies
Galaxies, Stars, & Black Holes
Goddard Space Flight Center
James Webb Space Telescope (JWST)
Science & Research
Seyfert Galaxies
The Universe
Smile for the camera! An interaction between an elliptical galaxy and a spiral galaxy, collectively known as Arp 107, seems to have given the spiral a happier outlook thanks to the two bright “eyes” and the wide semicircular “smile.” The region has been observed before in infrared by NASA’s Spitzer Space Telescope in 2005, however […]
Posted September 18, 2024
Active Galaxies
Astrophysics
Astrophysics Division
Chandra X-Ray Observatory
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Marshall Space Flight Center
Missions
Spiral Galaxies
The Universe
Like two Sumo wrestlers squaring off, the closest confirmed pair of supermassive black holes have been observed in tight proximity. These are located approximately 300 light-years apart and were detected using NASA’s Hubble Space Telescope and the Chandra X-ray Observatory.
Posted September 9, 2024
Nancy Grace Roman Space Telescope
Active Galaxies
Astrophysics
Black Holes
Galaxies
Galaxies, Stars, & Black Holes
Galaxies, Stars, & Black Holes Research
Goddard Space Flight Center
James Webb Space Telescope (JWST)
Origin & Evolution of the Universe
Science & Research
Stars
Supermassive Black Holes
The Big Bang
The Universe
Today, enormous stretches of space are crystal clear, but that wasn’t always the case. During its infancy, the universe was filled with a “fog” that made it opaque, cloaking the first stars and galaxies. NASA’s upcoming Nancy Grace Roman Space Telescope will probe the universe’s subsequent transition to the brilliant starscape we see today –– […]
Posted July 25, 2024
Active Galaxies
Astrophysics
Galaxies
Goddard Space Flight Center
The Universe
XRISM (X-Ray Imaging and Spectroscopy Mission)
After starting science operations in February, Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) studied the monster black hole at the center of galaxy NGC 4151.
Posted May 8, 2024
XMM-Newton (X-ray Multi-Mirror Newton)
Active Galaxies
Astrophysics
Elliptical Galaxies
Galaxies
Galaxies, Stars, & Black Holes
Galaxies, Stars, & Black Holes Research
Galaxy clusters
Goddard Space Flight Center
Missions
Science & Research
Sensing the Universe & Multimessenger Astronomy
The Universe
Astronomers have discovered enormous circular radio features of unknown origin around some galaxies. Now, new observations of one dubbed the Cloverleaf suggest it was created by clashing groups of galaxies.
Posted May 2, 2024
Active Galaxies
Astrophysics
Electromagnetic Spectrum
Galaxies
Galaxies, Stars, & Black Holes
Galaxy clusters
Goddard Space Flight Center
The Universe
XRISM (X-Ray Imaging and Spectroscopy Mission)
At a time when phone cameras are capable of taking snapshots with millions of pixels, an instrument on the Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) satellite captures revolutionary science with just 36 of them. “That may sound impossible, but it’s actually true,” said Richard Kelley, the U.S.
Posted April 30, 2024
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