Gamma rays are the highest-energy form of electromagnetic radiation, billions of times more energetic than visible light.

The galaxy M87, located in the Virgo constellation, provided the first-ever photo of a black hole in 2019, when the Event Horizon Telescope captured an image of the supermassive black hole at the ...

M87 was the first black hole to be imaged, and now it's revealing details of how some elementary particles are accelerated by ...

NASA's discovery of massive black holes like the one in quasar 3C 273 offers new insights into galactic interactions and how ...

the quasar 3C 273. Quasars almost look like stars but they are not, they are galactic nuclei that emit powerful radio waves, ...

Using NASA's Chandra X-ray telescope, astronomers witnessed a massive black hole jet slam into an unknown object in space.

New Hubble Space Telescope images of a black hole-powered quasar reveal 'weird' structures and gigantic jets of energy that ...

A grand spiral galaxy takes center stage in a new image from the Hubble Space Telescope. The galaxy, known as NGC 5643, is ...

This campaign of observations used a coronagraph, a system that creates little eclipses by blocking the light of stars. In ...

Hubble's closest view of quasar 3C 273 reveals unique features, including an L-shaped filament and high-speed jets.

The Hubble Space Telescope has peered deeper than ever before into the heart of the supermassive black hole-powered quasar 3C ...

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