President John F. Kennedy gives his inaugural address at the Capitol in Washington after taking the oath of office on Jan. 20, 1961.
Cosmonauts Vladimir N. Dezhurov (l.) and Mikhail Tyurin, both Expedition 3 flight engineers representing Rosaviakosmos, eat a Thanksgiving meal in the Zvezda Service Module on the International Space Station in 2001.
NASA's STS-32 crew took this view of the moon setting over the Earth's limb. Near the center is a semi-vortex in the clouds - a storm system in the early stages of formation. The moon's image is distorted due to refraction through the Earth's atmosphere.
This computer simulation is a data-based coronal loop model, constructed from magnetogram data collected by SOHO/MDI. The elegant loops are part of the sun's lower corona, and are caused by magnetic flux in the solar body.
This artist's concept shows a celestial body about the size of our moon slamming at great speed into a body the size of Mercury. NASA's Spitzer Space Telescope found evidence that a high-speed collision of this sort occurred a few thousand years ago around a young star, called HD 172555, still in the early stages of planet formation. The star is about 100 light-years from Earth.
NASA's journey into the universe
Ten decades of product evolution and broadening reach