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microscopy

Image of the meteorite Allen Hills 83100 illustrating spectral differences
Posted inEditors' Highlights

Pushing the Limits of IR Spectra: Using Nano-FTIR on Meteorites

by David Trang 16 May 202219 January 2023

A new method, nano-FTIR, is used to examine microstructures and processes on grains, displaying its benefit for examining asteroid returned samples through a meteorite.

Photomicrograph of tree ring cell density from open to tight showing the repeating pattern of seasonal growth.
Posted inEditors' Highlights

How Hot Was the Summer of 1783 Really? Trees Tell Tales

by Sarah Feakins 20 April 20224 January 2023

Volcanoes, heat waves, and tree rings – getting the seasonal story straight – a new study finds that volcanic fog lowered summer tree ring density despite the heat.

Wearing a white lab coat, Yiming Zhang, a doctoral student at the University of California, Berkeley, sits in front of a computer screen, examining data, with a mouse in his right hand. To his left, a gray microscope with four copper-colored rings encircling the stage perches on a black table.
Posted inNews

Diamonds Are a Paleomagnetist’s Best Friend

by Alka Tripathy-Lang 19 October 202114 March 2023

Typical paleomagnetic measurements average a sample’s signal. The quantum diamond microscope helps scientists make micrometer-scale maps of magnetism, showing where a sample locked in its magnetic signatures.

Rectangular to hexagonally shaped orange, blue, and white crystals on a black background. Crystals have concentric growth zones of varying colors.
Posted inNews

A New Tool May Make Geological Microscopy Data More Accessible

Richard Sima, freelance science writer by Richard J. Sima 27 May 20214 January 2023

PiAutoStage can automatically digitize and send microscope samples to students and researchers on the cheap and from a distance.

A rock pile in the Atacama Desert, Chile, with one rock in focus and two people standing in the background
Posted inNews

Desert Microbes Mine for Water

Lesley Evans Ogden, Science Writer by Lesley Evans Ogden 29 June 20204 January 2023

Scientists studying a cyanobacterium isolated from rock samples in the Atacama Desert found out how the bacteria extract water to live. Their results may help identify likely sites for life on Mars.

Photo of rocky hot springs covered by yellow microbial mats
Posted inNews

Microbes Spotted in “Polyextreme” Hot Springs

Katherine Kornei, Science Writer by Katherine Kornei 24 June 20194 January 2023

Hot springs that are as acidic as battery acid are home to single-celled microorganisms that may indicate that life could have been sustained on ancient Mars.

Map of a zoned dolomite crystal in a quartz matrix from the Strelley Pool Formation created using GIS software.
Posted inScience Updates

Making Maps on a Micrometer Scale

by B. J. Linzmeier, K. Kitajima, A. C. Denny and J. N. Cammack 17 May 20187 March 2023

Geographic information system software, created for mapping cities and continents, works equally well with the minuscule layers and inclusions that record a crystal’s history.

New mineral merelaniite looks like fine hairs.
Posted inNews

Whiskers on Familiar Crystal Revealed as New Mineral

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 9 November 201624 February 2023

A 14-year-old girl's chance encounter with a random sample of tanzanite led scientists to find an entirely new mineral.

Features from AGU Journals

RESEARCH SPOTLIGHTS
Geophysical Research Letters
“Neural Networks Map the Ebb and Flow of Tiny Ponds”
By Sarah Derouin

EDITORS' HIGHLIGHTS
Community Science
“Collaboration Helps Overcome Challenges in Air Quality Monitoring”
By Muki Haklay

EDITORS' VOX
Reviews of Geophysics
“What We Know and Don’t Know About Climate Tipping Elements”
By Seaver Wang

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