NATIONAL & WORLD NEWS

A group of Massachusetts high school students happened to visit the famed Notre Dame Cathedral on Monday — just prior to the massive fire that engulfed the building.

Sadie Nacar, 17, was among 77 people from East Bridgewater High School who had just landed in Paris on Monday for a class trip.

She says Notre Dame, one of the world’s most famous churches, was the main attraction of the day.

The center of Paris is Notre Dame.

This is true both literally and figuratively. The Gothic cathedral is there on Île de la Cité, the island in the Seine in between Paris' Left and Right banks, convenient and inescapable for the estimated 13 million people who visit it every year. Just outside, a Point Zero marker measures the distance to everything else in France. And Notre Dame is there in more than 850 years of French history: in paintings, daguerreotypes, songs, novels, war photos, awed selfies.

Updated on Tuesday at 5:25 a.m. ET

Notre Dame Cathedral, one of the world's most famous churches, erupted in flames Monday in Paris, losing its spire but remaining otherwise largely intact after firefighters worked through the night to contain the fire.

The world is seeing the first-ever image of a black hole Wednesday, as an international team of researchers from the Event Horizon Telescope project released their look at the supermassive black hole at the center of galaxy Messier 87 (M87). The image shows a dark disc "outlined by emission from hot gas swirling around it under the influence of strong gravity near its event horizon," the consortium said.

"As an astrophysicist, this is a thrilling day for me," said National Science Foundation Director France A. Córdova.

Federal prosecutors on Tuesday said they dismantled one of the largest health care fraud schemes ever investigated by the FBI, charging 24 people in a $1.2 billion alleged scam involving telemedicine and durable medical equipment companies.

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