Scientists are casting one of the largest telescope mirrors ever made on Earth
Scientists began casting one of the largest telescope mirrors ever made on Earth for the giant Magellanic telescope built in Chile on Friday.
Why it's important: The giant telescope is set to one day look into the atmosphere of potentially habitable planets around distant stars, learn more about early galaxies, and study other objects of interest.
With Axios Markets, you get market news that is worthy of your time. Subscribe for free.
Scroll to continue with the content
Norm Ender X Bumblebee Norm'un Seçimleri
Öne Çıkanlar Norm Ender X Hummel Norm'un Seçimleri Hummel Ürünleri.
What happens: The mirror is made in Arizona with the only spinning furnace in the world designed for this type of casting.
On Saturday, the oven will hit "high fire", spinning at five revolutions per minute and heating the glass to 2,129 degrees Fahrenheit for about five hours to liquefy it.
After this peak of warming, the glass gradually cools for about a month while the stove rotates more slowly and finally reaches room temperature about 2.5 months after the high fire.
"After cooling, the mirror is polished for two years before an optical surface accuracy of less than a thousandth the width of a human hair or five times smaller than a single coronavirus particle is achieved," wrote the GMT organization in a press release.
What's next? The first two mirrors of the GMT are finished and stored, three more are still being processed. The seventh and final mirror is to be cast in 2023.
The team behind the telescope is also planning to make an eighth mirror to replace it.
The telescope is expected to see the first light in 2029.
More from Axios: Subscribe to receive the latest market trends at Axios Markets. Subscribe for free
Mention your own website in this post for Advertisement
Joss Whedon's Confusing, Overcrowded The Nevers Indulges in the Laziest Habits of TV's Dickens Obsession
Anheuser-Busch's lawsuit against Corona hard seltzer will 'go down in flames': Constellation Brands CEO
Moses Brown with a dunk vs the Philadelphia 76ers
A Boston patrol cop allegedly abused a 12-year-old in 1995. Last year the victim reported that his daughter was abused by the same cop, who kept his badge despite an investigation finding he likely co
Eric Shawn: From FDR to Biden, expanding the US Supreme Court
Here are QVC's best deals for all your spring cleaning needs