No one has a firm grasp on the dimensions and activity of the lowest part of our upper atmosphere, known as the ionospheric D region, because it’s a moving target. Located 40 to 60 miles above the Earth’s surface, the region moves up and down, depending on the time of day. And it’s nearly impossible ...
There have been no major ground-rupturing earthquakes along California’s three highest slip rate faults in the past 100 years. A new study published in Seismological Research Letters concludes that this current “hiatus” has no precedent in the past 1,000 years. U.S. Geological Survey researchers Glenn Biasi and Kate Scharer analyzed long paleoseismic records from the San Andreas, San Jacinto, ...
Most children inherit both their postal code and their genetic code from their parents. But if genetic factors influence where families are able to live and children’s health and educational success, improving neighborhoods may not be enough. Latest research at Columbia Mailman School of Public Health and the University of California at Irvine provides new insights into ...
Researchers have developed a way to control the speed of light. Not only can they speed up a pulse of light and slow it down, but they can also make it travel backward. This achievement is a significant step in research that could one day lead to more efficient optical communication, as the technique could ...
For five months in mid-2017, Emily Mason did the same thing every day. Arriving at her office at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, she sat at her desk, opened up her computer, and stared at images of the Sun — all day, every day. “I probably looked through three or five years’ ...
The simple act of boiling water is one of humankind’s oldest inventions, and it’s still central to many of today’s technologies, from coffee makers to nuclear power plants. Yet this seemingly simple process has complexities that have long defied full understanding. Now, researchers at MIT have found a way to analyze one of the thorniest ...
After drawing both praise and skepticism, the team of astronomers who discovered NGC 1052-DF2 — the very first known galaxy to contain little to no dark matter — is back with stronger evidence about its bizarre nature. Dark matter is a mysterious, invisible substance that typically dominates the makeup of galaxies; finding an object missing ...
The chrome plating on the Terracotta Army weapons made of bronze — once thought to be the earliest form of anti-rust technology — derives from a decorative varnish rather than a preservation technique, a new study finds co-led by UCL and Terracotta Army Museum researchers. The study, published in Scientific Reports, suggests that the chemical composition ...
Two moderate-sized earthquakes that struck the southern Sichuan Province of China last December and January were probably caused by nearby fracking operations, according to a new study published in Seismological Research Letters. The December 2018 magnitude 5.7 and the January 2019 magnitude 5.3 earthquakes in the South Sichuan Basin caused extensive damage to farmhouses and other structures in ...
Archaeologists at the University of Cincinnati used the latest technology to find evidence suggesting ancient Maya people grew surplus crops to support an active trade with neighbors up and down the Yucatan Peninsula. They will present their findings at the American Association of Geographers conference in Washington, D.C. The Maya civilization stretched across portions of ...
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