Dive beneath the sea to the wreckage of a WWII bomber. Search for the remains of its fallen crew.
A month of space flight might compromise the ability of mice to make disease-fighting antibodies—even after their return to Earth.
The New Horizons spacecraft zooms toward an object 4 billion miles from Earth.
Apollo astronauts and engineers tell the inside story of the first manned mission to the moon.
As a human, you'd suffocate on Mars. But is there enough oxygen on the Red Planet to support some other forms of multicellular life?
Discover the feats of engineering that made the Concorde the first supersonic airliner.
This Lab explores what makes the Sun so volatile and gives you access to the same data, images, and tools that scientists use to predict solar storms.
In this slide show, review a number of aircraft accidents whose definitive causes remain a matter of debate.