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Science

NASA's Perseverance rover marks its first year hunting for past life on Mars

NASA's Perseverance rover marks its first year hunting for past life on Mars

Since touching down in Jezero Crater, NASA's Perseverance rover has already cached 6 samples that could one day be brought back to Earth. Astrobiologists hope they hold signs of past microbial life.
by Brendan Byrne

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Nearly half of U.S. bald eagles suffer lead poisoning

Nearly half of U.S. bald eagles suffer lead poisoning

Researchers report harmful levels of toxic lead were found in the bones of 46 percent of bald eagles sampled in 38 states. Similar rates of lead exposure were found in golden eagles, according to their study Thursday in the journal Science.
by The Associated Press

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Scientists seek funding to look for toxic tire chemical in Minnesota waters

Scientists seek funding to look for toxic tire chemical in Minnesota waters

Minnesota scientists are seeking funding to investigate if a toxic chemical from tires is harming popular fish species. Researchers in Washington state have linked the recently discovered chemical in rubber tires to the sudden deaths of coho salmon.
by Dan Gunderson

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Workers clean Apollo 16 spaceship ahead of 50th anniversary

Workers clean Apollo 16 spaceship ahead of 50th anniversary

The Apollo 16 spacecraft is dusty and home to a few cobwebs decades after it carried three astronauts to the moon. But workers at a space museum are getting the capsule ready for events marking the 50th anniversary of its flight in 1972.
by The Associated Press

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What will happen to the International Space Station when it is retired?

What will happen to the International Space Station when it is retired?

NASA says the International Space Station will stop operating at the end of 2030. After that, the space agency plans to crash the football field-sized craft into a remote part of the Pacific Ocean.
by Joe Hernandez

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What is COVID immunity, and how do you know if you have it?

What is COVID immunity, and how do you know if you have it?

Many people hope they’re now “immune” to COVID-19 through either vaccination or recovering from a COVID-19 infection. But what does immunity mean? MPR News Host Angela Davis talks with an immunologist and an infectious disease doctor about the complicated ways our bodies mount a defense against the virus.
by Angela Davis and Maja Beckstrom

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Why rapid COVID tests aren't more accurate, and how scientists hope to improve them

Why rapid COVID tests aren't more accurate, and how scientists hope to improve them

Recent research — and plenty of anecdotes — suggest some rapid tests may be less sensitive at detecting the omicron variant if you don't have symptoms. Here's how researchers hope to make them more effective.
by Maria Godoy

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A prehistoric eruption may help recalibrate our timeline of human origins in Africa

A prehistoric eruption may help recalibrate our timeline of human origins in Africa

Some of the oldest human remains ever unearthed are the Omo 1 bones found in Ethiopia. For decades, their precise age has been debated, but a new study may have the answer.
by Mano Sundaresan and Patrick Jarenwattananon

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