Earth: Towering Cumulonimbus Clouds | International Space Station | View 2

Earth: Towering Cumulonimbus Clouds | International Space Station | View 1

Kate & Jeff Prepare for Spacewalk | International Space Station | Getting Ready to Launch Astronauts from U.S. Soil

Space Station Crewmembers Discuss Life in Space with the Media Astronauts Jeff Williams & Kate Rubins Talk About Spacewalk Plan

Aurora waves goodbye and lets the stars take center stage. Goodnight from the International Space Station. | NASA Astronaut Jeff Williams

Aurora waves goodbye and lets the stars take center stage. Good night from @Space_Station.https://t.co/Qq5NoNi0uT

— Jeff Williams (@Astro_Jeff) August 4, 2016

NASA Astronauts Jeff Williams & Kate Rubins on the International Space Station want to wish Team USA Good Luck at the Rio 2016 Olympics!

.@NASA astronauts on the @space_station want to wish #TeamUSA GOOD LUCK at #Rio2016!https://t.co/Y9CFKKLPbn

— U.S. Olympic Team (@TeamUSA) August 4, 2016

Istanbul, Turkey | NASA Astronaut Jeff Williams | International Space Station

Travel across the Bosphorus strait, Istanbul Turkey. Continental boundary between Europe and Asia.https://t.co/Um7eg0Qsqo

— Jeff Williams (@Astro_Jeff) August 3, 2016

These wild looking swirl formations are not clouds, but rather ice flows off of Newfoundland. | NASA Astronaut Jeff Williams | International Space Station

These wild looking swirl formations are not clouds, but rather ice flows off of Newfoundland.https://t.co/lH0KIsf2QY

— Jeff Williams (@Astro_Jeff) July 28, 2016

Grand Teton National Park, Wyoming | NASA Astronaut Jeff Williams | International Space Station

Grand Teton National Park, Wyoming. #FindYourPark #NPS100https://t.co/DRRST4SiNO

— Jeff Williams (@Astro_Jeff) July 27, 2016

"Aurora approaches and lights up our International Space Station" | NASA Astronaut Jeff Williams | International Space Station

Aurora approaches and lights up our @Space_Station.https://t.co/v3TYtRFQvk

— Jeff Williams (@Astro_Jeff) July 27, 2016

Northern Rockies, Canada and Montana, including Glacier National Park! | NASA Astronaut Jeff Williams | International Space Station

Northern Rockies, Canada and Montana, including @glaciernps #FindYourPark #NPS100https://t.co/yMeIQFSnIT

— Jeff Williams (@Astro_Jeff) July 26, 2016

Albuquerque, New Mexico. Zoom to Northeast Heights and fly across the Valley. In view is the University of New Mexico, downtown area, and the zoo. | NASA Astronaut Jeff Williams | International Space Station

Albuquerque New Mexico. Zoom to Northeast Heights and fly across the Valley. In view is @UNM, downtown, and the zoo.https://t.co/2hPIliSsfc

— Jeff Williams (@Astro_Jeff) July 26, 2016

Women of NASA on LEGO Ideas: NASA Astronaut Mae Jemison

Women of NASA on LEGO Ideas: Support & Vote!

The Grand Canyon of the Tuolumne River. Yosemite National Park. Hetch Hetchy reservoir to Lembert Dome. | NASA Astronaut Jeff Williams | International Space Station

The Grand Canyon of the Tuolumne River @YosemiteNPS. Hetch Hetchy reservoir to Lembert Dome. #FindYourPark #NPS100https://t.co/Ht98hl5KZC

— Jeff Williams (@Astro_Jeff) July 19, 2016

"Some celestial aurora to brighten your Sunday." | NASA Astronaut Jeff Williams | Goodnight from the International Space Station

Some celestial aurora to brighten your Sunday. pic.twitter.com/SXrVxktWst

— Jeff Williams (@Astro_Jeff) July 17, 2016