European Union Agency for the Space Programme (EUSPA)

Co-ordinates the various EU space services including Galileo sat nav, Copernicus climate satellites, asteroid monitoring etc.

Fediverse address (main):
@EUSPA@social.network.europa.eu

Fediverse address (videos):
@euspa@tube.network.europa.eu

MPS Göttingen (Max Planck Institute for Solar System Research)

Research establishment in Göttingen, Germany which studies all the bodies that make up our solar system including the Sun, the planets, the asteroids etc. The Institute develops scientific instruments that are sent into space on ESA and NASA missions.

Fediverse address (English and German):
@mpsgoettingen@astrodon.social

Amateur Radio on the International Space Station (ARISS)

Project helping students talk to astronauts on the International Space Station via amateur radio equipment, hopefully inspiring them to pursue a career in STEM subjects. There are also repeaters for ham radio fans to take part.

Fediverse address:
@ARISS_Intl@mastodon.hams.social

Dr Robert Minchin

Astronomer at the National Radio Astronomy Observatory in the United States, and previously at (amongst others) the famous Arecibo in Puerto Rico, and the flying telescope SOFIA.

Fediverse address:
@Robminchin@mastodon.online