Fishing has left a hefty footprint on Earth. Oceans cover more than two-thirds of the planet’s surface, and industrial fishing occurred across 55 percent of that ocean area in 2016, researchers report in the Feb. 23 Science. In comparison, only 34 percent of Earth’s land area is used for agriculture or grazing.
Previous efforts to quantify global fishing have relied on a hodgepodge of...
As a longtime reader of Science News, I’m delighted to join the staff of this remarkable publication, which has been explaining the complexities of science, medicine and technology for more than 90 years. Science News hasn’t been standing still; people can find our breaking news and in-depth coverage in the flagship magazine as well as on the Science News website, which drew more than...02/22/2018 - 10:46 Science & Society
Letters to the Editor
Mission: Mars02/22/2018 - 10:39 Planetary Science, Exoplanets, Science & Society
The possibility that human visitors could carry Earth-based microbes to the Red Planet has roiled the Mars research community, Lisa Grossman reported in “How to keep humans from ruining the search for life on Mars” (SN: 1/20/18, p. 22).
Reader Bruce Merchant speculated that Mars would need a protective global magnetic field to sustain a life-friendly environment. But...
Science & the Public
In courtrooms around the United States, computer programs give testimony that helps decide who gets locked up and who walks free.
These algorithms are criminal recidivism predictors, which use personal information about defendants — like family and employment history — to assess that person’s likelihood of committing future crimes. Judges factor those risk ratings into verdicts on...
Everybody’s a critic. Even back in second century Egypt.
While digging in Tebtunis in northern Egypt in the winter of 1899–1900, British archaeologists stumbled upon portraits of affluent Greco-Egyptians placed over the faces of mummies. One grave contained an ink and chalk sketch, a bit larger than a standard sheet of printer paper, of a woman from around the years A.D. 140 to 160. The...
AUSTIN, Texas — An analysis of the metals in dozens of Picasso’s bronze sculptures has traced the birthplace of a handful of the works of art to the outskirts of German-occupied Paris during World War II.
This is the first time that the raw materials of Picasso’s sculptures have been scrutinized in detail, conservation scientist Francesca Casadio of the Art Institute of Chicago said...
AUSTIN, Texas — If alien microbes crash-land on Earth, they may get a warm welcome.
When people were asked how they would react to the discovery of extraterrestrial microbial life, they give generally positive responses, researchers reported at a news conference February 16 at the annual meeting of the American Association for the Advancement of Science.
This suggests that if...
Dying, it turns out, is not like flipping a switch. Genes keep working for a while after a person dies, and scientists have used that activity in the lab to pinpoint time of death to within about nine minutes.
During the first 24 hours after death, genetic changes kick in across various human tissues, creating patterns of activity that can be used to roughly predict when someone died,...
Science & the Public
Editor’s Note: This story was updated February 9 to note President Trump’s fiscal year 2019 budget proposal.
A two-year spending package, passed by Congress in the wee hours of February 9 and signed into law by President Trump hours later, could add to the coffers of U.S. science agencies.
The bipartisan deal raises the caps on defense and nondefense discretionary spending by...
Power within 30 years
Controlled thermonuclear fusion is moving so well that full-scale development could begin within five years, says Dr. David J. Rose....It might take 20 to 30 years beyond that before fusion could move into the power grid, though, he predicts. — Science News, February 17, 1968Update
Governments and private-sector start-ups are still trying to wrangle...