The North Korean government bans sarcastic speech against itself or Kim Jong-un.
The engine that could revolutionize space travel is pursued by scientists around the world.
UCLA researchers successfully use a new technique to "wake up" a patient after coma.
An expansive new study shows that marijuana use by Americans has increased significantly since 2002.
The increased use of smart drugs to boost brain performance is raising many ethical and practical questions.
Astronomers find a galaxy made almost entirely of dark matter.
A team of Harvard researchers 3D prints a fully autonomous octopus-like robot that runs on a chemical reaction.
One of the fathers of string theory proposes a new equation that may reconcile general relativity and quantum mechanics.
A new pipeline could ruin their water supply and sacred sites, say the Standing Rock Sioux and other tribes.
North Korea announces a new on-demand video service for its citizens.