This 2 million euro ($2.6 million) will be the largest liquid mirror telescope developed specifically for astronomy and is located on Devesthal Peak in Northern India, says Borra, a Co ...

NASA has finished assembling the primary mirror array on its biggest telescope yet ... of ultra-lightweight beryllium and measure about 4.2 feet across. Each mirror had to be fitted on top ...

That primary mirror has now been completed and polished so finely that the average of the bumps on its surface is just 1.2 nanometers tall. The Roman Space Telescope’s primary mirror reflects an ...

A high-speed dust-size micrometeoroid slammed into one of the James Webb Space Telescope's 18 primary mirror segments last ... the highest bump would be just 2 inches tall. The micrometeoroid ...

European astronomers are planning to build an optical telescope that is four times as big as any in existence. With a main mirror around 42m-wide, the Extremely Large Telescope (ELT) will allow remote ...

Before the AzTEC camera on the LMT took observations of this galaxy, astronomers relied on Hubble Space Telescope images to study star formation, Pope says. But most star formation is obscured by ...