Reference Pages
07 September 2012, 05:51 PM ET
One of the astronauts on Apollo 16 left his family on the moon.
06 September 2012, 02:11 PM ET
Astronauts on the moon take the lunar rover for a spin.
05 September 2012, 05:24 PM ET
Alan Shepard's return to space was marked by a tough climb and a tee shot.
04 September 2012, 03:59 PM ET
Caroline Herschel was the first woman to discover a comet. She made several contributions to the field of astronomy
04 September 2012, 01:51 PM ET
Astronomer William Herschel discovered the planet Uranus and 2,500 celestial objects.
31 August 2012, 10:47 AM ET
The Apollo 12 crew needed to land close to their target area to fulfill their mission.
29 August 2012, 01:31 PM ET
The Apollo 8 mission took astronauts around the moon for the first time.
28 August 2012, 03:46 PM ET
The three astronauts on board — Gus Grissom, Ed White, and Roger Chaffee — died. The tragedy changed the way NASA operates.
24 August 2012, 04:15 PM ET
The final Apollo mission took the first scientist to the moon.
23 August 2012, 06:58 PM ET
The first American to orbit Earth made history twice.
23 August 2012, 06:13 PM ET
These powerful objects offer a glimpse into the origins of the universe.
23 August 2012, 12:38 PM ET
The Apollo 13 mission's "problem" tested NASA's ingenuity
21 August 2012, 06:39 PM ET
Sunita Williams, a record-setting astronaut, has a unique way of staying fit in space.
21 August 2012, 05:07 PM ET
Facts and information about the home of NASA's astronaut corps.
21 August 2012, 11:58 AM ET
NASA's twin probes are going where no one has gone before.
20 August 2012, 03:02 PM ET
Is the Cydonia rock formation a sign of life or a trick of light?
17 August 2012, 05:35 PM ET
Astronaut, scientist, physician, teacher – Mae Jemison wears many different hats.
17 August 2012, 05:33 PM ET
The sun is a big ball of hot gases.
15 August 2012, 07:04 PM ET
Heat and light from the sun make life on Earth possible.
14 August 2012, 12:30 PM ET
The constellation Taurus charges through the northern winter sky.
10 August 2012, 05:42 PM ET
The first Indian-born woman in space died when the space shuttle Columbia broke up on re-entry.
10 August 2012, 04:07 PM ET
This dim constellation was not defined until 1930.
09 August 2012, 12:41 PM ET
This large constellation contains the bright star Spica and many exoplanets and deep space objects.
08 August 2012, 04:52 PM ET
Earth's star is the largest and the most massive object in the solar system. More than 1 million Earths could fit inside the sun.
08 August 2012, 11:40 AM ET
First observed by the Chinese nearly 1,000 years ago, material from this supernova remnant is moving at 3 million mph.
07 August 2012, 03:13 PM ET
Astronaut Michael Collins felt "absolutely isolated" in orbit while his Apollo 11 crewmates walked on the moon.
07 August 2012, 02:25 PM ET
This is the dimmest constellation of the Zodiac.
06 August 2012, 04:13 PM ET
JPL is the space agency's go-to center for the robotic exploration of worlds beyond Earth.
06 August 2012, 01:58 PM ET
The Scorpius constellation comprises some of the brightest stars in the sky.
03 August 2012, 05:58 PM ET
Mars formed billions of years ago along with the rest of the solar system.
03 August 2012, 04:57 PM ET
Mars is a very cold planet. Temperatures don't get much above 70 degrees F and they can get down to nearly minus 200 degrees F.
03 August 2012, 02:50 PM ET
Mars' atmosphere is too thin to support life as we know it. And it's very dusty. The red planet has the largest dust storms in the solar system.