08/02/2021

Scientists discover how a group of caterpillars became poisonous

The Atala butterfly (Eumaeus atala) and its five closest relatives in the genus Eumaeus like to display their toxicity. This sextet's toxicity comes from what they eat as caterpillars: plants called cycads that have been ...

Cleaning up the Mississippi River

Louisiana State University College of the Coast & Environment Boyd Professor R. Eugene Turner reconstructed a 100-year record chronicling water quality trends in the lower Mississippi River by compiling water quality data ...

Where should future astronauts land on Mars? Follow the water

So you want to build a Mars base. Where to start? Like any human settlement, it would be best located near accessible water. Not only will water be crucial for life-support supplies, it will be used for everything from agriculture ...

Camera captures the Southern Pinwheel galaxy in glorious detail

Astronomy enthusiasts might wonder why a camera called the Dark Energy Camera (DECam) would be used to image a single spiral galaxy. DECam has in fact already finished its main job, as the instrument was used to complete ...

New technique used to discover how galaxies grow

For decades, space and ground telescopes have provided us with spectacular images of galaxies. These building blocks of the universe usually contain several million to over a trillion stars and can range in size from a few ...

Tricky terrain: Helping to assure a safe rover landing

After a nearly seven-month journey to Mars, NASA's Perseverance rover is slated to land at the Red Planet's Jezero Crater Feb. 18, 2021, a rugged expanse chosen for its scientific research and sample collection possibilities.

Yes, allergy seasons are getting worse; blame climate change

If you live with seasonal allergies and feel like the pollen seasons feel longer and longer every year, you may be right. New research shows that pollen seasons start 20 days earlier, are 10 days longer, and feature 21% more ...

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