November 24, 2018 | Science News

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November 24, 2018View Digital Issue

Editor's Note

Editor in Chief Nancy Shute discusses drinking water quality in the United States and the latest research on water treatment technology.
By Nancy Shute | November 11, 2018
Magazine issue: Vol. 194, No. 10 , November 24, 2018 , p. 2

Features

glass of water

Feature

Drinking water quality has come a long way in the past hundred years — but challenges remain.
mammoth, mastodon, and gomphothere

Feature

Mammoths, mastodons and other ancient elephants were wiped out at the end of the last ice age by climate change and spear-wielding humans.

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Features

glass of water
Drinking water quality has come a long way in the past hundred years — but challenges remain.
mammoth, mastodon, and gomphothere
Mammoths, mastodons and other ancient elephants were wiped out at the end of the last ice age by climate change and spear-wielding humans.

News

David Mzee's rehab progress
There’s more evidence that with targeted spinal cord stimulation, paralyzed people can move voluntarily — and even walk.
person lighting marijuana pipe
After just a week of not using pot, teens’ and young adults’ abilities to remember lists of words got better, a small study finds.
globs of alpha-synuclein protein
Removal of the appendix reduced the risk of developing Parkinson’s disease, an analysis of nearly 1.7 million health records in Sweden suggests.
Milky Way illustration
The Milky Way swallowed another galaxy billions of years ago, and the leftover stars are still roaming the sky.
vanadium atoms
When shifting from one crystalline structure to another, the atoms inside vanadium dioxide bumble around a lot more than expected.
cockroach
Cockroaches kick attacking emerald jewel wasps to avoid being incapacitated and buried alive as living meat for the wasps’ young.
ancient spearpoint
Ancient Americans’ spearpoints may have heralded later Clovis weapons.
chemical structure of thiostrepton
Speedy molecular identification originally developed for proteins might benefit crime lab researchers and drugmakers.
cacao beans
Artifacts with traces of cacao push back the known date for when the plant was first domesticated by 1,500 years.
moon
The next two Chinese missions to the moon will visit places no spacecraft has been before. The rest of the world wants a piece of the lunar action.
early vertebrate illustration
After appearing about 480 million years ago in coastal waters, the earliest vertebrates stayed in the shallows for another 100 million years.
ancient antelope jaw and teeth
A once-green Arabia may have enabled Stone Age entries by Homo groups.
Radula perrottetii
Cannabinoids found in liverwort plants could spell relief for those suffering from chronic pain.
patient breathing oxygen
In testing, a triple-drug therapy significantly improved lung function in cystic fibrosis patients with the most common disease-causing mutation.
black hole
Gas clumps cozy up to the Milky Way’s enormous black hole, new observations reveal.
person sunbathing on a beach
Skin cells make protective melanin on a 48-hour cycle.
Laser satellite illustration
A powerful fast-pulsing laser can bust through clouds to make quantum communication via satellite easier.

Notebook

Salvator Mundi painting
An analysis of portraits believed to portray Leonardo da Vinci offers evidence that the artist had exotropia, in which one eye turns outward.
researcher holding sockeye salmon
Scientists studying salmon in Alaska flung dead fish into the forest. After 20 years, the nutrients from those carcasses sped up tree growth.
screwworm fly
The United States has wiped out screwworm flies repeatedly since 1966 using the sterile male eradication technique.
Nematode worm
As they eat insects, one nematode species releases chemicals that attract more insect prey.

Reviews & Previews

people playing a science board game
Subatomic is the latest game from John Coveyou, whose company Genius Games wants people to find the joy in science.

Letters to the Editor

Readers expressed their thoughts about the SN 10 scientists, Saturn's hexagons and Jocelyn Bell Burnell.

Science Visualized

dandelion floof
Researchers have deciphered the physics underlying dandelion flight.

Editor's Note

Editor in Chief Nancy Shute discusses drinking water quality in the United States and the latest research on water treatment technology.