Astronomers have used the unique capabilities of NASA's Hubble Space Telescope to peer closer than ever into the throat of an ...

Legendary Active Galaxy Contains a Monster Black Hole Amateur astronomers can observe an extraordinary celestial object known as 3C 273, the most distant target visible through a standard backyard ...

Astronomers have used the unique capabilities of NASA's Hubble Space Telescope to peer closer than ever into the throat of an ...

We only discovered space ORCs four years ago, and still don’t know what they are, but have learned their apparent uniformity ...

To resolve the black hole, they used the Event Horizon Telescope, a global radio telescope array with an effective aperture ...

These galaxies emit energy from their nucleus, or center - called the active galactic nucleus. In a process called accretion ... Astronomers have observed the sky for hundreds of years. But the era of ...

Extreme objects such as supernova remnants, pulsars or active galactic nuclei produce charged particles and ... fields in the universe and reach the Earth isotropically from all directions. This means ...

The latter, called active galactic ... all crammed into a sphere about as wide as New York City is long. Cygnus X-1's event horizon, meanwhile, appears to lie about 300 km (185 miles) out from its ...

An international scientific team, led by a researcher from the Institute of Space Studies of Catalonia (IEEC) and the ...

Hubble's latest findings on quasar 3C 273 uncover strange structures, shedding light on the relationship between supermassive ...

Although its mission is over, NEOWISE still has much to share with the astronomical community, including these stunning new ...

The new images show these iconic galaxies in great detail, immortalizing their shape, colors and distribution of stars up to great distances from the center ... portion of the sky that, over ...