Tuesday, March 10, 2020

science news 10.3.2020

Today's selection of science news. Links are normally to press releases on EurekAlert (at the bottom end I may also add a couple of newspaper stories). I include quotes from the summary in italics in cases where the title alone doesn't reveal what the story is about. My own thoughts appear without italics if I have any.



astrobiology

Safety zone saves giant moons from fatal plunge
Numerical simulations showed that the temperature gradient in the disk of gas around a young gas giant planet could play a critical role in the development of a satellite system dominated by a single large moon, similar to Titan around Saturn. Researchers found that dust in the circumplanetary disk can create a 'safety zone,' which keeps the moon from falling into the planet as the system evolves.


earth

Ancient shell shows days were half-hour shorter 70 million years ago


evolution

Male size advantage drives evolution of sex change in reef fish


conservation

Sea turtles have a deadly attraction to stinky plastic


nanoworld

Research uncovers a new way of making chiral catalysts



The chiral rotaxane catalysts selectively produced one hand of the target
Credit: University of Southampton

Researchers map protein motion
Cornell structural biologists took a new approach to using a classic method of X-ray analysis to capture something the conventional method had never accounted for: the collective motion of proteins. And they did so by creating software to painstakingly stitch together the scraps of data that are usually disregarded in the process.


light and life

Cryo-EM reveals unexpected diversity of photosystems


coronavirus crisis

New study on COVID-19 estimates 5.1 days for incubation period


sustainability

'Deceptively simple' process could boost plastics recycling
This is about a catalytic method to rearrange the branching in polymers - doesn't sound revolutionary to me but every little helps, I guess.

New study presents stretchable and colorless solar cells, using Si microwire composites



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From the news media:

Have some archaeology for a little light relief - here's a Roman amphitheatre being dug up in Kent.

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