Sciences

How Do You Solve a Moon Mystery? Fire a Laser at It

Researchers have used reflective prisms left on the moon’s surface for decades, but had increasingly seen problems with their effectiveness.

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Study Says Obesity Raises Risk of Death from Covid-19 Among Men

Obesity is not an independent risk for women, according to a new study, perhaps because their fat is distributed differently.

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Did Betelgeuse Sneeze?

The mysterious dimming of the red supergiant is the result of a stellar exhalation, astronomers say.

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It’s Always the Summer of the Shark

Even during a pandemic, we cannot get the white shark out of our minds. Despite the rare attack, experts say humans have little to fear.

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When Will Long-Term Care Facilities Reopen to Visitors?

Struck hard by the pandemic, nursing homes and assisted living facilities shut their doors to outsiders. Many families are still waiting to see their loved ones.

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Konrad Steffen, Who Sounded Alarm on Greenland Ice, Dies at 68

A renowned researcher on rising sea levels, he died after falling into the kind of crevasse that warming has created. “It looks like climate change actually claimed him as a victim,” a colleague said.

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Anxiety and Depression Rises Among Young Adults, Blacks and Latinos in Pandemic

A new C.D.C. survey indicates that young people, as well as Blacks and Latinos of all ages, are showing signs of deteriorating mental health and some are resorting to substance abuse.

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Trump Eliminates Major Methane Rule, Even as Leaks Are Worsening

The weakening of Obama-era efforts to fight climate change amounts to a gift to many oil companies. Researchers warn that the decision ignores science.

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‘Terror Crocodile’ the Size of a Bus Fed on Dinosaurs, Study Says

The monster animal, more closely related to American alligators than modern crocodiles, had teeth the size of bananas and a strange enlarged snout.

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Coronavirus Live Updates: New Zealand Races to Trace Source of New Outbreak

The country revives its “go hard, go early” approach as officials investigate a mysterious cluster that might have started with frozen food.

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