Science

December 5, 2024 2:50 PM

Hennepin County crime lab resumes DNA testing after finding source of contamination

The Hennepin County Sheriff’s Office announced Thursday that it has resumed DNA testing at its crime lab, after putting testing on hold this fall.

by MPR News Staff

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November 25, 2024 11:15 AM

The science and art of breeding, growing and tasting fruit

MPR News host Angela Davis talks with two University of Minnesota fruit breeders who helped bring some of your favorite apples to market.

by Angela Davis and Cari Dwyer

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November 24, 2024 7:50 AM

Fold paper. Insert lens. This $2 microscope changes how kids see the world

The Foldscope brings a powerful science tool to schools that can't afford microscopes. Scientists use it too. Its creators have handed out 2 million units, including a new mini-model for younger kids.

by Kamala Thiagarajan

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November 15, 2024 11:00 AM

Helen Scales advocates for the ocean in ‘What the Wild Sea Can Be’

Marine biologist Helen Scales argues that while our oceans are warmer, more polluted and over fished, many of the challenges are solvable.

by Kerri Miller and Kelly Gordon

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November 14, 2024 10:25 AM

Stargazers can see the final supermoon of the year this weekend

The next supermoon — which appears larger and brighter than a regular full moon due to its proximity to Earth — will not be visible for nearly a year.

by Chandelis Duster

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November 11, 2024 11:15 AM

Taurid meteor shower to light up the night sky. Here's how you can see it

The North and South Taurids occur every year in September, October and November. They may have originated from a comet that broke up about 10,000 years ago.

by Chandelis Duster

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November 11, 2024 5:00 AM

Alzheimer’s timeline shows changes start as trickle, become torrent

A study of cells from 84 brains finds that Alzheimer’s has two distinct phases, and that one type of neuron is especially vulnerable.

by Jon Hamilton

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November 8, 2024 11:00 AM

Richard Powers brings to life the death of the world’s oceans in ‘Playground’

In his new novel, “Playground,” Richard Powers explores the majesty, the mystery and the fragile future of the planet’s seas.

by Kerri Miller and Kelly Gordon

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November 6, 2024 4:48 PM

How dead stuff at the bottom of the ocean helps slow the pace of climate change

The oceans play a big role in preventing the Earth from getting even hotter due to climate change. That's thanks to the ocean's natural waste recycling system, a process that's still mysterious.

by Lauren Sommer