The campaign to capture the first-ever image of a black hole has begun.
From April 5 through April 14, astronomers will use a system of radio telescopes around the world to peer at the gigantic black hole at the center of the Milky Way, a behemoth called Sagittarius A* (Sgr A*) that's 4 million times more massive than the sun.
The researchers hope to photograph Sgr A*'s event horizon — the "point of no return" beyond which nothing, not even light, can escape. (The interior of a black hole can never be imaged, because light cannot make it out.) [The Strangest Black Holes in the Universe]
"These are the observations that will help us to sort through all the wild theories about black holes — and there are many wild theories," Gopal Narayanan, an astronomy research professor at the University of Massachusetts Amherst, said in a statement. "With data from this project, we will understand things about black holes that we have never understood before."
The project, known as the Event Horizon Telescope (EHT), links up observatories in Hawaii, Arizona, California, Mexico, Chile, Spain and Antarctica to create the equivalent of a radio instrument the size of the entire Earth. Such a powerful tool is necessary to view the event horizon of Sgr A*, which lies 26,000 light-years from our planet, EHT team members said.