Merrit Kennedy

Scientists have caught sight of a star extremely close to what they think is a black hole, whizzing around it at an extraordinary speed — at least twice an hour. As NASA put it, "This may be the tightest orbital dance ever witnessed for a likely black hole and a companion star."

The pair is in our galaxy, in an area dense with stars some 14,800 light-years from Earth.

Conservationists are sounding the alarm over a South African proposal that would legalize and regulate the domestic trade of rhinoceros horn, as well as allow some limited exports.

A public comment period ended last week on the draft regulations from the Department of Environmental Affairs, published on Feb. 8 in the official government gazette.

Joni Sledge of the group Sister Sledge, best known for the iconic disco 1979 anthem We Are Family, has died at 60.

The group's publicist, Biff Warren, said Sledge was found at home in Arizona and they have yet to determine a cause of death. She had not been ill, he said.

A top U.S. military official told the Senate Armed Services Committee on Thursday that he accepts "full responsibility" for the widely criticized U.S. ground raid into Yemen in late January.

At the same time, Gen. Joseph Votel, the head of U.S. Central Command, said he was "satisfied" after a review found that the tragic outcome of the raid was not a result of "incompetence or poor decision-making or poor judgment."

The Pentagon is sending about 400 Marines to Syria to help local fighters wrest control of Raqqa, which ISIS considers its capital.

The Pentagon says the new troops will fire artillery rounds at ISIS fighters in support of the local forces, as well as provide security for the Marine artillerymen, as NPR's Phil Ewing reports.

These 400 troops will bring the number of U.S. forces on the ground in Syria to about 900, Phil says.

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