NASA

Start the slideshow to view the most beautiful astronomical images captured by Hubble telescope.

NASA’s Hubble Telescope delivered its milestone millionth science observation of 21 years on Monday, July 4, exposing the chemical composition of the planet HAT-P-7b, also known as Kepler 2b.

A space shuttle liftoff is an awe-inspiring sight -- but the journey doesn't begin on the launch pad. It has to get there first. Rollout means moving a fully assembled space shuttle, and its mobile launcher platform

The five orbiters - Columbia, Challenger, Discovery, Atlantis and Endeavour - have flown more than 130 times, carrying over 350 people into space and traveling more than half a billion miles, more than enough to reach Jupiter.

NASA space shuttle Atlantis is scheduled to blast off to the International Space Station at 11:26 am EDT on July 8, which will be the final flight in the 30-year shuttle program.

NASA has plans after Atlantis' final mission to the International Space Station.

NASA space shuttle Atlantis is scheduled to liftoff on the final mission of the shuttle program, STS-135, a 12-day program to the International Space Station on July 8 at 11:26 am EDT. Meanwhile, the four astronauts arrived in two T-38 jets at NASA Kennedy Space Center's Shuttle Landing Facility at about 2:30 pm EDT on the fourth of July.

NASA talks about the future of space exploration after the impending end of the space shuttle program.

NASA space shuttle Atlantis is set to liftoff on the final flight of the shuttle program, STS-135, a 12-day mission to the International Space Station. The launch is currently targeted for July 8 at 11:26 am EDT.

NASA's historic adventures and cutting-edge technology provide some of the underpinnings for Transformers: Dark of the Moon,

NASA Final Space Shuttle Atlantis is scheduled to launch at 11:26 am EDT on July 8, which will be the final flight in the 30-year shuttle program. And now, what is next For NASA?

In his book NASA conspiracies British journalist and author Nick Redfern has raised many questions on the space agency efforts in exploring outer space, including the Apollo moon landings, the controversial face on Mars, UFO sightings and other secret space programs.

The year 2011 was envisioned by many futurologists in the last 100 years to be full of jumpsuits, electronic cars and mobile satellite phones. While some of them came true, many others were not even past their successful trials.

NASA space shuttle Atlantis is scheduled to blast off to the International Space Station at 11:26 am EDT on July 8, which will be the final flight in the 30-year shuttle program.

On Fourth of July, 2011, as United States commemorates the adoption of Declaration of Independence, Earth reaches a point called Aphelion on its orbit and will be farthest from Sun than on any other day in 2011.

As scientists continue to launch various Mars missions to know if life existed on the Red Planet, here are a few pictures from NASA’s past Mars expeditions suggesting evidence of water on the Martian surface.

NASA has planned about 14 DISCOVER-AQ flights through July for a mission to enhance the capability of satellites to measure ground-level air quality from space.

NASA space shuttle Atlantis is scheduled to blast off to the International Space Station at 11:26 am EDT on July 8, which will be the final flight in the 30-year shuttle program.

NASA's space shuttle program comes to an end with the launch of the space shuttle Atlantis.

From an artist's impression of a growing supermassive black hole to a devotee covered in mud and a covering of dried leaves, we marvel at the images that give a rare glimpse into the world that surrounds us.

Director Michael Bay used NASA's Kennedy Space Center launch pad to film many scenes from the movie.