
Copernical Team
Sixth mirror casting brings Giant Magellan Telescope closer to completion

China selects astronauts for space station program

Comet Catalina Suggests Comets Delivered Carbon to Rocky Planets

Astronauts conclude spacewalk maintenance on International Space Station

Space launch from British soil one step closer

NASA's Perseverance Drives on Mars' Terrain for First Time

Spacewalkers finish solar panel prep for station power boost

For the second time this week, a pair of astronauts floated outside Friday to get the International Space Station ready for new solar panels.
Engineering marvel: Sixth mirror cast for Giant Magellan Telescope

The Giant Magellan Telescope announces fabrication of the sixth of seven of the world's largest monolithic mirrors. These mirrors will allow astronomers to see farther into the universe with more detail than any other optical telescope before. The sixth 8.4-meter (27.5 feet) mirror—about two stories high when standing on edge—is being fabricated at the University of Arizona's Richard F. Caris Mirror Lab and will take nearly four years to complete. The mirror casting is considered a marvel of modern engineering and is usually celebrated with a large in-person event with attendees from all over the world. Due to the coronavirus pandemic, work on the sixth mirror began behind closed doors to protect the health of the 10-person mirror casting team at the lab.
Timelapse: Ariane 6 upper stage installed for tests

This timelapse video shows the hot firing model of the Ariane 6 upper stage being installed on the P5.2 test stand at the DLR German Aerospace Center in Lampoldshausen, Germany on 16 February 2021.
After arrival from the ArianeGroup facilities in Bremen, this 5.4 m-diameter upper stage was hoisted out of its container, tilted vertical and installed on the test stand.
Tests will simulate all aspects of flight including stage preparation such as fuelling with liquid oxygen and liquid hydrogen, and draining its tanks.
Data will be gathered on non-propulsive ballistic phases, tank pressurisation to increase performance, Vinci engine reignitions,
Visit ESA virtually with new Discover ESA platform

Do you want to visit all ESA establishments and see what we’re doing to explore space and protect our planet? Now you can, by taking virtual tours from your own homes, thanks to the Discover ESA interactive experience.