Black Holes Absorbing Material Poster

Learn how astronomers search for evidence of black holes by looking for those with a stellar companion with this poster, exclusively from Astronomy magazine.

Black holes are the stellar remnants of the universe’s most massive stars. The gravity of a black hole is so strong that nothing, not even light, can escape its gravitational grip. This makes them incredibly difficult to spot, forcing astronomers to search for indirect evidence of a black hole rather than the object itself. One trick to finding black holes is to search for ones with a stellar companion. In such binaries, the black hole may feed on its neighbor, ultimately giving away its position to observers.

Size: 11" x 17"