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World Cup athletes and fans in Houston may face sweltering conditions during Saturday evening's match between the Netherlands and Sweden.

GJ 504b, the pink planet, is 57 light years away from Earth and now scientists at Northwestern University discovered it has a salty set of clouds surrounding it. Astrophysicist Aneesh Baburaj, who has been leading much of the research, talks with NBC ...

Much of the region had been dealing with a prolonged drought. Recent rainfall has eased that situation but could also prime some areas for flooding as Arthur moves through.

An experimental vaccine aimed at preventing fentanyl overdoses showed promise in an early-stage clinical trial, according to the drugmaker, ARMR Sciences. NBC News' Berkeley Lovelace Jr. explains how this breakthrough could combat the opioid crisis.

A new study suggests an ancient version of plague most likely spread among family members in hunter-gatherer groups, with children thought to have been particularly vulnerable.

After it launches in August, the Nancy Grace Roman Space Telescope is expected to survey far more of the sky than any space telescope before it.

Among the effects predicted: drought in the Pacific Northwest, flooding risk in the South, more Pacific hurricanes, high ocean heat and visits from unusual fish and sharks.

After NASA announced the astronauts selected for the flight, the lack of women sparked "reactions ranging from disappointment to outrage," Administrator Jared Isaacman said.

The crew is expected to launch to Earth orbit next year to conduct demonstrations with one or both of the lunar landers that SpaceX and Blue Origin are building.

The U.S. will run much the same playbook as it did starting in the 1950s: mass-produce sterile male screwworms and release them into the wild to stop the pests from reproducing.