
Astronaut Frank Rubio has fun with fluid physics as he observes the behavior of a free-flying water bubble.

Astronaut Kjell Lindgren has fun with fluid physics as he observes the behavior of a free-flying water bubble.

Astronaut Jessica Watkins has fun with fluid physics as she observes the behavior of a free-flying water bubble.

Astronaut Samantha Cristoforetti looks at the Earth through the cupola, the International Space Station’s “window to the world.”

Astronaut Samantha Cristoforetti has fun with fluid physics as she observes the behavior of a free-flying water bubble.

Astronaut Bob Hines has fun with fluid physics as he observes the behavior of a free-flying water bubble.

NASA astronaut and Expedition 68 Flight Engineer Bob Hines poses for a portrait inside the cupola, the International Space Station’s…

On September 28, the Landsat 8 satellite passed directly over Ian’s eye as the storm approached southwest Florida. The natural-color…

This is the last complete image of the asteroid Dimorphos, as seen by our Double Asteroid Redirection Test (DART) 2…