Iran's Supreme Leader Ayatollah Ali Khamenei has urged further military development, including missile enhancement, following ...

Stricter fuel efficiency standards and policies are needed to drive further reductions in aircraft fuel burn, especially for ...

NASA's X-59 quiet supersonic research aircraft has taken another successful step toward flight with the conclusion of a series of engine performance tests.

Astronomers have discovered a massive, double-lobed radio jet stretching 200,000 light-years from a quasar that existed when ...

The U.S. government wants to select "disparate" locations where it could eventually make bomb-grade uranium again.

Russia's United Aircraft states that 11 serial-production Yakovlev SJ-100 airframes have been assembled, and will be ...

Ukraine destroyed a Russian fighter jet and then ambushed a rescue helicopter trying to pluck the pilot to safety, it has ...

From decades of astronomical observations, scientists know that most galaxies contain massive black holes at their centers.

Boston Dynamics partners with the RAI Institute to enhance reinforcement learning and mobile manipulation for the electric ...

Large language models unleashed the power of AI. Now it’s time for more efficient AIs to take over. After years of controversy, stem cells are on the cusp of cures for conditions like epilepsy and ...

South Africa's ambitious plan to expand nuclear power capacity to 14 500MW by 2050 raises critical questions about economic ...