Oil prices jumped after the United States and Iran exchanged fire for a second day, heightening fears that the two countries could slide back into open conflict.

Commanders do not usually speak publicly about future operations to avoid jeopardizing the mission’s success.

With machine learning and a high-resolution imaging robot, scientists measured and mapped the extent of Earth’s carbon circulatory system.

The targeted countries host sprawling American military bases and thousands of personnel at a time when the United States is waging war against Iran.

The global weather pattern threatens to worsen floods and heat waves already intensifying due to climate change. But it may also mean fewer hurricanes.

Two stabbings have fueled violent protests in England and Northern Ireland in the last 10 days, fanned online by right-wing voices. In Britain and across Europe, it’s a grim pattern.

Justin Fishner-Wolfson, long a minor figure in Elon Musk’s orbit, is at the helm of a multibillion-dollar payout

Her decades of work on Huntington’s disease helped lead to the creation of a genetic test for the devastating condition. Why didn’t she take it herself?

In his first extensive interview since his defeat by a Trump-backed challenger, the Texas Republican said the Senate was in for a “bumpy ride” as he and others flex new political freedom.

Imagine what Tom Steyer could have done with all the money he wasted on another campaign.

The Justice Department once tried to stay out of state elections, urging caution. It is now pressing forward with claims of fraud as President Trump revives his unfounded assertions that elections cannot be trusted.

Soupy, hot weather will settle into the Northeast on Thursday and Friday, bringing with it the threat of dangerous storms.

As vaccination rates decline, biotech companies see a potential new market for measles drugs.

Some New Yorkers tried their luck at hot spots like Bong, Via Carota and Ha’s Snack Bar.

The solution to Trumpism isn’t to conform to the spirit of the age, but to transform it.

You’re not important or lucky enough to have access to shares at the offering price, and that’s OK. Here’s why.

One-third of Americans shoulder health care debt. Insurers are being asked to consider lending money to Obamacare consumers who can’t afford higher deductibles.

Parallels between the two wars abound, from the grinding nature of the fighting to the way new technologies reshaped warfare.

Here’s what you should know about this massive competition.

Now, Judge Eleanor Ross’s career and caseload are under scrutiny. And her punishment, a private reprimand, has sparked backlash.

McGregor, the Ultimate Fighting Championship’s main attraction, had the support of the prominent sports physician Neal ElAttrache when he decided to use performance-enhancing drugs.

The president’s top advisers gathered in a series of Situation Room meetings as they struggled to contain a scandal engulfing Donald Trump himself.

Here is what we know about the sexual predator whose secrets spurred an international reckoning over money, power and complicity. Check back for updates.