Extras
To better study the UFO phenomenon, science needs more eyes on the skies.
A nearly 3,000-year-old canopic jar is discovered in an Egyptian tomb.
Follow scientists in a quest to understand how complex forest ecosystems can help cool our planet.
Space elevators? Nuclear rockets? The future of space travel could look radically different.
The Drake Equation helps scientists estimate the odds of finding intelligent alien civilizations.
If the universe as we know it started with the Big Bang, will it also have an end?
Scientists have discovered the building blocks of life in samples retrieved from a distant asteroid.
Explore key military technologies in the American colonies鈥� fight for freedom.
The container ship Dali lost power causing it to crash into Baltimore鈥檚 Key Bridge.
Engineers explain how a vulnerability made the bridge open to catastrophe.