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One of the enduring mysteries of biology is why so much of the DNA in our chromosomes appears to be simply junk. In fact, about half of the human genome consists of repetitive bits of DNA that cut and paste themselves randomly into our chromosomes, with no obvious purpose.

A study published Thursday finds that some of these snippets may actually play a vital role in the development of embryos.

Jason Bellows was a Florida inmate on his way out of prison and back into the real world. 

The Environmental Protection Agency has completed a more than decade-long cleanup at Cascades Park. A manufactured gas plant closed more than 50 years ago had contaminated the area’s soil with chemicals.

Do you see a blue dress or a gold dress? Well, this time it's a green Zara jacket. And the color doesn't matter — it's what's written on the back in big white graffiti lettering: "I REALLY DON'T CARE, DO U?"

Traffic, sea-level rise and the Everglades are colliding after Miami-Dade commissioners voted Wednesday to advance a potential expressway extension to state regulators.

The proposal to extend State Road 836 aims to reduce traffic for commuters in the West Kendall area. Driving the 20 or so miles to downtown Miami during rush hour can take an hour and a half -- or more.

Updated at 9:42 p.m. ET

Charles Krauthammer, the prominent Pulitzer Prize-winning columnist for the Washington Post and commentator for the Fox News Channel, has died.

His death was confirmed by Fred Hiatt, the editorial page editor for the Post. The cause of Krauthammer's death was cancer. He was 68.

Opportunity, phone home!

NASA scientists are still holding out hope they will hear from the surprisingly long-lived Mars rover. It went into snooze mode earlier this month, thanks to a gargantuan dust storm on the Red Planet that's blocking beams from reaching the solar panels that recharge the rover's batteries.

By a razor-thin margin, the House of Representatives passed its version of the farm bill Thursday as Republican leadership was able to round up just enough support from members of its conservative wing to clear passage.

The GOP-backed measure, which covers farm and food policy legislation, passed 213-211.

The $867 billion package renews the safety net for farmers across the country, but also includes tougher work requirements for recipients of the Supplemental Nutrition Program or SNAP, formerly known as food stamps.

A Texas sheriff has barred his deputies from taking on additional work as off-duty security at a recently built tent encampment intended to house migrant children separated from their parents at the border.

El Paso Sheriff Richard Wiles said he feared the assignment to oversee minors forcibly separated from their parents would fuel the current controversy over the practice and undermine trust between law enforcement and the people they serve.

On Tuesday, U.S. Sen. Bill Nelson and Florida Congresswoman Debbie Wasserman Schultz were denied entry into a federal detention facility in Homestead that is housing an estimated 1,000 minors who were separated from their parents at the U.S. border.

Less than 24 hours later, President Trump signed an executive order ending his administration’s family separation policy, which — until that point — he had adamantly denied even existed. But, the end of the policy separating children from their families in the future doesn’t necessarily mean the reunification of those already separated families now.

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