The night sky above the world’s best observatories has long been prized for one thing above all: darkness. Now that darkness ...

Humanity is already filling the space around our planet with machines. Around Earth, thousands of satellites are currently ...

Bright mirrors and a million satellites could wash out the night sky, so an ESO study caps safe orbits at 100,000 faint craft.

Ben Nowack is the cofounder and CEO of Reflect Orbital, and says there are plenty of applications for redirected sunlight, ...

For decades, engineers and planetary scientists have explored howorbital mirrors could be used to actively shape a planet’s ...

Can space telescopes be improved for future astronomy studies? This is what a researcher from the Max Planck Institute for Extraterrestrial Physics hopes to find out as he developed a method of ...

Critics argue the satellites, billed as a way to harness solar energy at night, could hamper sky observations and may pose a threat to human and animal health A long-exposure view of the Milky Way, ...

Researchers have developed a new way to produce and shape large, high-quality mirrors that are much thinner than the primary mirrors previously used for telescopes deployed in space. The resulting ...

Mirrors are a critical part of any space telescope, and the James Webb Space Telescope’s mirrors are made of a special element that will enable it to withstand the rigors of space and see farther back ...

The Roman Space Telescope Coronagraph during assembly of the static optics at NASA’s Jet Propulsion Laboratory. Credit: Dr. Eduardo Bendek The Roman Space Telescope Coronagraph during assembly of the ...