NASA astronaut Steve Swanson, Expedition 39 flight engineer, participates in body mass measurement/Russian biomedical routine assessments.
One of the Expedition 39 crew members photographed this pre-winter storm located just off the coast of southwestern Australia.
Expedition 39 Flight Engineer Rick Mastracchio performs inflight maintenance on an experiment called Burning and Suppression of Solids (BASS)-II.
The Cassini spacecraft peers down through layers of haze to glimpse the lakes of Titan’s northern regions.Titan (3,200 miles, or…
During an eclipse, two shadows are cast. The first is called the umbra (UM bruh). This shadow gets smaller as…
During a solar eclipse, the moon casts a large shadow onto Earth’s surface. Image Credit: Centre National d’Etudes Spatiales (CNES)
An annular eclipse happens when the moon is farthest from Earth.
For a total eclipse to take place, the sun, moon and Earth must be in a direct line.
A partial solar eclipse takes place when the sun, moon and Earth are not exactly lined up. (NEVER look at…
When the moon passes directly between the sun and Earth, a solar eclipse takes place. (NEVER look at the sun…