Perseid meteor shower tonight is at its peak. It's the only meteor shower known to have killed a satellite and delayed a space-shuttle launch. Enter the Meteoroid Environment Office.
The moon Tethys floats before the massive, golden-hued globe of Saturn in this natural color view. The thin, dark line of the rings curves around the horizon at top.
Astronauts removed a malfunctioning International Space Station cooling pump in a spacewalk Wednesday after an initial attempt failed Sunday. The astronauts will need to install a new pump next week. Until then, the space station crew must curtail its research work.
Jessica Gonzalez plays with her father before her first day of kindergarten at Tremont Elementary School in Dixon, Calif., on Wednesday.
The Apollo 9 Command/Service Modules, nicknamed 'Gumdrop,' and Lunar Module, nicknamed 'Spider,' are shown docked together as Command Module pilot David R. Scott stands in the open hatch. Astronaut Russell L. Schweickart, Lunar Module pilot, took this photograph of Scott during his EVA as he stood on the porch outside the Lunar Module in 1969.
Astronauts aboard the International Space Station are on a space walk Wednesday to make repairs on the space station's cooling system
The European Space Agency's Rosetta spacecraft recently flew by Lutetia, a huge asteroid that tuns out to have some very bizarre features.
The Antennae galaxies, located about 62 million light years from Earth, are shown in this composite image from the Chandra X-ray Observatory (blue), the Hubble Space Telescope (gold), and the Spitzer Space Telescope (red).The collision, which began more than 100 million years ago and is still occurring, has triggered the formation of millions of stars in clouds of dusts and gas in the galaxies. The most massive of these young stars have already sped through their evolution in a few million years and exploded as supernovas.
On August 1, almost the entire Earth-facing side of the sun erupted in a tumult of activity. This image from the Solar Dynamics Observatory shows the C3-class solar flare (white area on upper left), a solar tsunami (wave-like structure, upper right), multiple filaments of magnetism lifting off the stellar surface, large-scale shaking of the solar corona, radio bursts, a coronal mass ejection and more.
By spying on a neighboring galaxy, NASA's Hubble Space Telescope has captured an image of a young, globular-like star cluster - a type of object unknown in our Milky Way Galaxy. The double cluster NGC 1850 lies in a neighboring satellite galaxy, the Large Magellanic Cloud.