Stephen Hawking on AI: Is This the End of the Human Race?

A book by Stephen Hawking.

Stephen Hawking, a revered figure in theoretical physics, voiced profound caution about the far-reaching implications of artificial intelligence. (Image: Ralf Liebhold via Dreamstime)

Are Black Holes Time Machines? Yes, but There’s a Catch

What a black hole might look like.

Black holes form natural time machines that allow travel to both the past and the future. But don’t expect to be heading back to visit the dinosaurs any time soon. (Image: via NASA’s Goddard Space Flight)

Polarized X-Rays Reveal Shape, Orientation of Extremely Hot Matter Around Black Hole

The Cygnus X-1 system.

An artist’s impression of the Cygnus X-1 system, with the black hole appearing in the center and its companion star on the left. (Image: John Paice)

New Method Finds Black Hole Closest to Earth

A blkack hole close to Earth.

Using data from ESA’s Gaia astrometry mission, astronomers have identified the closest known black hole, less than 1600 light-years away from Earth, and determined its mass. (Image: © T. Müller (MPIA), PanSTARRS DR1 (K. C. Chambers et al. 2016) via ESA / Gaia / DPAC (CC BY-SA 3.0 IGO))

Researchers Discover New Monster Black Hole ‘Practically in Our Back Yard’

A supermassive black hole.

The discovery of a so-called monster black hole that has about 12 times the mass of the sun is detailed in a new Astrophysical Journal research submission. (Image: M. Helfenbein, Yale University via OPAC)

The Rare Merger of Unrelated Black Holes

Two merging black holes.

The data from gravitational ripple observatories showed a merger of two black holes that came far away in space from each other. (Image: Alexandr Yurtchenko via Dreamstime)

Quasar 3C 273 Revealed by High Contrast Imaging

The Milky Way galaxy.

A team of astronomers in Japan has discovered for the first time a faint radio emission covering a giant galaxy with an energetic black hole at its center. (Image: via Pixabay)

Making Sense of the Nonsensical: Black Holes and the Simulation Library

A black hole.

The international Event Horizon Telescope collaboration has snapped a second image of a black hole — this time at the center of our own Milky Way galaxy. But to give the image meaning, the collaboration had to compare it with black hole simulations. (Image: via Pixabay)

Closest Supermassive Black Holes to Earth Found!

A supermassive black hole.

Closest supermassive blackholes to Earth found! (Image: Screenshot via YouTube)

Black Holes and Dark Matter, Are They One and the Same?

Artist illustration of dust obscuring supermassive black hole.

This artist illustration shows the thick ring of dust that can obscure the energetic processes that occur near the supermassive black hole of an active galactic nuclei. (Image: Lynette Cook via NASA / SOFIA)