Articles by Jason Koebler
Liquid salt can be used to power spacecraft.
Another study suggests Americans' attitudes about climate change vary with the weather.
Buzz Aldrin says the 'planetary defense exercise' is a waste of time.
The billionaire businessman plans to launch his Inspiration Mars trip in 2018.
People "won't tolerate machines killing humans," experts say.
Europeans likely share a common ancestor from as recently as 1,000 years ago.
A new heroin vaccine could be ready for human trials later this year.
By boosting the expression of a gene that destroys toxic proteins, scientists extend healthy lifespan of flies.
The mission is designed to test NASA's spacecraft, with side benefit of creating an asteroid defense capability.
Instead of detaining suspected terrorists, Obama just kills them, a former White House adviser says.