
NASA astronaut Megan McArthur collects microbial samples from surfaces inside the International Space Station.

NASA astronaut Megan McArthur prepares frozen research samples for transfer and stowage.

Astronaut Megan McArthur signs her name next to the SpaceX CRS-22 cargo mission sticker.

Astronaut Mark Vande Hei signs his name next to the SpaceX CRS-22 cargo mission sticker.

Astronaut Thomas Pesquet signs his name next to the SpaceX CRS-22 cargo mission sticker.

Astronaut Shane Kimbrough signs his name next to the SpaceX CRS-22 cargo mission sticker.

Astronaut Akihiko Hoshide signs his name next to the SpaceX CRS-22 cargo mission sticker.

The SpaceX Cargo Dragon resupply ship departs the International Space Station after it undocked from the Harmony module.

APOD Science APOD APOD: 2021 July 12 – M27:… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss…

APOD Science APOD APOD: 2021 July 11 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss …