extremely large telescope
Aliens Might Notice Us if We Shot a Giant Laser at Them, Study Says
Two emerging technologies could be combined to produce a powerful infrared signal that could be spotted from distant planets, according to research in The Astrophysical Journal.
Watch the Casting of a Giant Mirror for the First Extremely Large Telescope
A look inside the Mirror Lab, where astronomers go when they need some serious glass.
The World's Largest Telescope Is Being Built So We Can Finally Find Aliens
A video touting the ELT says it's the biggest telescope currently under construction and could be the first to spot aliens.
Watch the Largest Convex Mirror Ever Get Made
The secondary mirror for the Extremely Large Telescope will take a year to cool down.
The Controversial Thirty Meter Telescope Will Resume Construction
After months of protests over building on a sacred Hawaiian mountain, a deal has been struck.
The World's Biggest Optical Telescope is European and Extremely Large
While the United States' space program may be withering up into a sad nostalgic raisin, at least the Europeans are still thinking extremely large. Member states of the European Southern Observatory and a number of partners, including Brazil, have...