The most powerful telescope of all time is coming to Chile

The Earth-based Giant Magellan Telescope is poised to discover habitable planets and unlock space's deep secrets in collaboration with its cosmic cousin, the JWST.
The telescope is a collaboration between institutions representing five countries. Giant Magellan Telescope

This article was originally featured on Popular Photography.

If you thought the James Webb Space Telescope (JWST) was impressive, think again. With a fresh $205 million in funding secured to accelerate its construction, the Giant Magellan Telescope is poised to be the most powerful telescope… ever. It will be used to hunt for habitable planets, study the first galaxies of the universe, and attempt to explain mysteries like dark matter and energy.

Giant Magellan Telescope receives $205 million in funding

The $205 million check is one of the largest in the Giant Magellan Telescope’s history, led by the Carnegie Institution for Science, Harvard University, São Paulo Research Foundation (FAPESP), The University of Texas at Austin, the University of Arizona, and the University of Chicago. 

The funds will be used to construct the 12-story telescope, including the seven primary mirrors underway at the University of Arizona’s Richard F. Caris Mirror Lab and an advanced spectrograph instrument in Texas. The final product will be assembled at Ingersoll Machine Tools in Illinois.

The Giant Magellan Telescope site will be located in Chile. Giant Magellan Telescope

“The funding is truly a collaborative effort from our Founders. It will result in the fabrication of the world’s largest mirrors, the giant telescope mount that holds and aligns them, and a science instrument that will allow us to study the chemical evolution of stars and planets like never before,” says Dr. Robert Shelton, President of the Giant Magellan Telescope Organization (GMTO).

An important priority in astronomy

 JWST is already a feat of human engineering. So why all the hype around the Giant Magellan Telescope? 

The National Academy of Sciences Astro2020 Decadal Survey deemed the project “absolutely essential if the United States is to maintain a position as a leader in ground-based astronomy.”

The Giant Magellan Telescope will be capable of much higher resolution imaging than Webb. Giant Magellan Telescope

The telescope will have 10 times the light collecting area and four times the spatial resolution of the JWST, and will be 200 times more powerful than any other research telescope currently in use. For context, it will be able to show the torch on a dime from nearly 100 miles away with tack-sharp focus.

With that, the goal of the Giant Magellan Telescope will be to study the physics and chemistry of faint light sources discovered by the JWST. The hope is to identify potentially habitable planets; study the universe’s first galaxies; and search for clues that would unlock the mysteries of dark matter and energy, black holes, and the universe’s origins. 

Currently, six of the telescope’s seven primary mirrors are constructed. Giant Magellan Telescope

Giant Magellan Telescope’s current progress

Though the project does not currently have a completion date, significant progress has been made. Presently, six of the seven primary mirror segments have been cast, with the third segment having completed its two-year polishing phase. 

The Giant Magellan Telescope will be assembled at a newly-constructed, 40,000-square-foot facility, and the first adaptive secondary mirror is currently in production in Europe. 

If the project is anything like other deep space telescope projects, it could be a while before we see any results. But until then, we’ll be eagerly waiting.