Weather thwarts shuttle launches. But important factors favor this state.
This view from the panoramic camera on NASA's Mars Exploration Rover Spirit shows the terrain surrounding the location called 'Troy,' where Spirit became embedded in soft soil during the spring of 2009. The track on the right is more evident because Spirit was driving backwards, dragging its right-front wheel, one of two wheels which no longer rotates. The bright soil in the center foreground is soft material in which Spirit became embedded after the wheels on that side cut through a darker top layer.
Some Florida neighborhoods are overrun with peacocks, but not all agree that the colorful birds should be removed.
Youths attend a martial art practice session in Jammu, India, on Tuesday. Dozens practiced their skils under a local trainer.
On May 25, 1961, President John F. Kennedy speaks in the House of Representatives before a joint session of Congress in Washington. Kennedy issued the challenge, 'I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to Earth.' A little over eight years later, Apollo 11 landed on the moon.
An Afghan girl looks at US Marines as they speak with her father during a patrol in Garmsir district of the Helmand province in Afghanistan.
Unless the valves are in working order, Discovery will remain Earthbound. Previous shuttle missions have encountered problems with the components, too.
Flight director Tony Ceccacci said a preliminary look at the images beamed down found nothing amiss, and everything was on track for Friday's planned landing.
The shuttle's departure broke up the biggest off-the-planet gathering ever: 13 people altogether in space.
Endeavour is poised to take off for the space station Wednesday evening, along with seven astronauts. Forecasters put the odds of good weather at 60 percent.