The Comet

Tragedy struck when the Space Shuttle Challenger disintegrated just 73 seconds into flight. Hours earlier, engineers argued to cancel the launch,...

Chaco Canyon, located in northwest New Mexico, is perhaps the only site in the world constructed in an elaborate pattern that mirrors the yearly...

Cave paintings and lunar calendars exist in the caves and remains of prehistoric hunters studied recently. What if Prehistoric Man were clever enough...

Some 220 miles above Earth lies the International Space Station, a one-of-a-kind outer space laboratory that 16 nations came together to build. Get a...

A giant ball of gas and raw energy with a temperature of up to 15 million degrees, the sun is the origin of life on earth and influences an infinite...

NASA's James Webb Space Telescope, from its conception to completion.

CERN and the University of California-Santa Barbara are collaborating in the search for the elusive substance that physicists and astronomers believe...

This is your window into the universe… Hubble was launched in April 1990 on board Space Shuttle Discovery. Its release into orbit over 500km...

Area 51, flying saucers from another world - and the program to create a fierce technology. Bob Lazar remains the singular most famous and...

An intimate and cinematic portrait of astronomer and planetary scientist Carl Sagan.