15 February 2013, 04:18 PM ET
Close encounters of extraterrestrial objects seen on and above Earth, coming from asteroids and meteors.
21 November 2012, 12:55 PM ET
Launched in 1998, 15 nations have invested in building and maintaing the International Space Station. What goes on aboard?
04 October 2012, 02:16 PM ET
The European Southern Observatory has built some of Humankind's largest telescopes in the high altitudes of the Chilean Mountains. The 'seeing' there is about as good can be had without leaving Earth's surface.
23 May 2012, 11:47 AM ET
On June 5th or 6th, 2012 (depending on your global location) Venus appeared to cross the face of the Sun for the final time until 2117. See this magnificent event and discover the history and science of the Transit of Venus.
14 November 2011, 09:08 AM ET
The Mars Science Lab (MSL) aka "Curiosity" is the The largest rover to be sent to the Red Planet to date. Its mission is to seek out past and present conditions favorable for life and capable of preserving a record of life.
27 October 2011, 08:48 AM ET
7 Billion people live below on this planet. But fewer than a thousand have seen these sights with their own two eyes. Join us on a journey of vibrant beauty in these compilations of space station, space-transport and satellite imagery.
12 May 2011, 08:31 PM ET
NASA's mission to study the role salinity plays in climate change.
06 May 2011, 11:57 AM ET
Matter and Energy in Einstein's Universe
25 January 2010, 11:53 AM ET
This Week In Space with Miles O'Brien
10 December 2009, 06:41 AM ET
The cosmos was already nearly 10 billion years old when our Sun was born. Yet we're still quite a young universe.
24 November 2009, 07:07 AM ET
Supermassive black holes are the open hearths upon which complex matter is forged, then flung far and wide, building the Universe.
19 November 2009, 04:48 AM ET
Pete Conrad and Alan Bean make a jolly, blind, pinpoint lunar landing and grab rock samples revealing the Moon's strange birth.
12 November 2009, 09:29 AM ET
Living just a few light minutes from a roiling fusion furnace, you'd have to figure there'd be a few bad days...
10 November 2009, 09:28 AM ET
Take a ride with NASA's astronauts to get a behind-the-scenes look at life riding the world's first reusable space plane.
02 November 2009, 12:35 PM ET
Amazing Moons and Rings Attend Jupiter and Saturn
28 October 2009, 09:20 AM ET
Who designs, builds, tests and flies huge new rockets? Some very down to Earth people.
15 September 2009, 10:34 AM ET
Piecing together an ancient planetary puzzle of life.
23 July 2009, 06:14 AM ET
The Bush-era NASA project planned to fly to the International Space Station, the Moon, and Mars.
20 July 2009, 08:52 AM ET
Why go back to the Moon? Who's going? How? When?
16 July 2009, 07:20 AM ET
Back to the time of America's first lunar landings, with the guys who flew.
23 April 2009, 12:14 PM ET
Chandra sees what other orbiting observatories can't: the high energy sources of the Universe.
22 April 2009, 10:45 AM ET
Former Hubble Space Telescope astronomer shares his view of the sky...and profiles some GOOD astronomy.
20 April 2009, 01:24 PM ET
"De-mind-boggling" the scale of the Cosmos, Astronomer Brent Tully provides expert commentary; Star Trek's Chase Masterson narrates.
20 April 2009, 08:00 AM ET
So many discoveries have been made because HST's data is available to everyone.
17 April 2009, 08:11 AM ET
Who Else Is Out There? Many branches of scientific inquiry converge – and cross-pollinate – around the questions of life beyond Earth.
13 April 2009, 09:41 AM ET
Behind the Science with the Mars Exploration Rovers' Human Family
16 March 2009, 08:10 AM ET
Nov. 20, 1998 marked the beginning of an international construction project of unprecedented complexity and sophistication. On Nov. 20, 2008, the International Space Station marked 10 years of operation orbiting Earth.
02 February 2009, 09:21 AM ET
Private space entrepreneurs risk fortunes and flirt with dangerous physics as they boldly go to market.
27 January 2009, 10:56 AM ET
When a supermassive star dies, it's corpse collapses into a knot so tight not even light can escape. This drain on the fabric of the Universe warps the shape of space. And the flow of time.
15 December 2008, 01:16 PM ET
How to Enjoy the Night Sky: Tips, tricks and techniques for observing the Universe.