In this mage from June 2002, astronaut Franklin R. Chang-Diaz works with a grapple fixture during a spacewalk to perform work on the International Space Station. via NASA https://ift.tt/34NT53K

Mae Jemison, the first black woman in space, participated in crew egress training for Space Shuttle Endeavour’s STS-47 mission during the Terminal Countdown Demonstration Test. via NASA https://ift.tt/34FXpBR

This 2019 photo of Manhattan, taken by astronaut Nick Hague from aboard the International Space Station, shows a city totally recovered from the attack on September 11, 2001. via NASA https://ift.tt/2LL0O9R

NASA astronaut Mike Fincke works through a check list inside a mockup of Boeing’s CST-100 Starliner during a simulation at NASA’s Johnson Space Center on Aug. 21, 2019. via NASA https://ift.tt/2A3vb63

It’s Back to School Week and NASA has activities to keep students motivated. via NASA https://ift.tt/303wVqt

Scientists with NASA’s Mars 2020 mission and the European-Russian ExoMars mission traveled to the Australian Outback to hone their research techniques. via NASA https://ift.tt/34sZ79G

On Sept. 4, 2019, a loose chain of tropical cyclones lined up across the Western Hemisphere. via NASA https://ift.tt/32yqDAC

Located in the northern constellation of Ursa Major, which also includes the Big Dipper, nearby galaxy Messier 81 is easily visible through binoculars or a small telescope. via NASA https://ift.tt/2ZOK7iS

At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 61 crewmember Jessica Meir of NASA climbs aboard a Soyuz trainer during final crew qualification exams on Aug. 30. via NASA https://ift.tt/2HFmqDy

NASA astronaut Christian Koch snapped this image of Hurricane Dorian as the International Space Station during a flyover on Monday, September 2, 2019. via NASA https://ift.tt/2Uq1OE8