WASHINGTON (AP) — President Donald Trump has arrived at a delicate moment as he weighs whether to order a U.S. military ...

Research shows that burning hydrogen-blended gas into older appliances not designed for it can increase emissions of nitrogen ...

Imagine being one of the biggest stars on the planet and still getting a "not so fast" from security. That’s exactly what ...

NASA lost contact with the MAVEN probe in Mars orbit, and teams are working to reestablish communications after an unexpected ...

"There are incredibly tantalizing samples in the Perseverance rover's cache that could revolutionize our understanding of ...

The analysis revealed a recurring cycle of industry opposition, FRA inaction, congressional capitulation and tragedy.

At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the ...

In a blow to anyone dreaming that complex life may exist elsewhere in the universe, a new study suggests we're unlikely to ...

DUBAI, United Arab Emirates (AP) — U.S. President Donald Trump said Iran wants to negotiate with Washington after his threat ...

For more than 770,000 Venezuelans living in the U.S., reactions to Trump’s forceful moves are as intense as they are ...

Jupiter’s most famous storm is slimming down, spinning up and behaving in ways that challenge what scientists thought they ...