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Monday, September 16, 2019

Dinosaur eggs reveal their body temperature

Researchers have measured the body temperatures of a wide range of dinosaurs using eggshells. The results offer clues to how the animals may have regulated their internal heat. The study was led by John Eiler,...

Cooler temps and climate skeptics align on map

Experiencing record high or low temperatures affects people’s stated belief in climate change, new research finds. The work began when Robert Kaufmann, professor of earth and environment at Boston University, and PhD candidate Xiaojing Tang...

Physicist explains why time travel isn’t possible

A simple question from his wife—Does physics really allow people to travel back in time?—propelled physicist Richard Muller on a quest to resolve a fundamental problem that had puzzled him throughout his career: Why...

Science on the surface of a comet

Data were obtained during the lander’s seven-hour descent to its first touchdown at the Agilkia landing site, which then triggered the start of a sequence of predefined experiments. But shortly after touchdown, it became...

Is science pretending both sexes have the same brain?

Neuroscientists have found a key molecular difference between males and females in how synapses are regulated in the hippocampus. The findings suggest that female and male brains may respond differently to drugs, such as...

Urine test might detect brain injury from blasts

About one in five wounded soldiers suffers from traumatic brain injury, and an estimated 52 percent of those injuries are blast-induced neurotrauma. Some of those brain injuries are difficult to diagnose because people don’t always...

Purple potatoes slow colon cancer in mice

Compounds found in purple potatoes suppressed the growth of colon cancer tumors in petri dishes and in mice by targeting the cancer’s stem cells. Attacking stem cells is an effective way to counter cancer, says...

Why going to Mars isn’t such a crazy idea

Sidney Perkowitz, a physics professor at Emory University, explains why we’re closer than most people think to sending astronauts to Mars and how it might be possible to use the planet’s raw materials to...

Why the next hurricane might flood New York City

Whether or not a coastal city floods during a hurricane depends on the storm, tide, and sea level. For New York City, the effects of climate change on storm size and sea levels have...

Did calling Zika a public health emergency jump the gun?

Margaret Chan, director-general of the World Health Organization (WHO), has declared Zika virus “a public health emergency of international concern,” saying the the 2016 outbreak is an “extraordinary event” and a public health threat...
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