Just days into the Trump administration, alarm bells are ringing in the scientific community amid confusing and whiplashing reports of gag orders and funding freezes at the Environmental Protection Agency, the U.S. Department of Agriculture and other federal agencies. Various on-again, off-again directives range from putting a hold on tweeting (mostly still on) to banning […]
Generations of gurus have exhorted, “Live in the moment!” For Lonni Sue Johnson, that’s all she can do. In 2007, viral encephalitis destroyed Johnson’s hippocampus. Without that crucial brain structure, Johnson lost most of her memories of the past and can’t form new ones. She literally lives in the present. In The Perpetual Now, science […]
A prehistoric marine reptile may have given birth to its young alive. A fossil from South China may be the first evidence of live birth in the animal group Archosauromorpha, scientists report February 14 in Nature Communications. Today Archosauromorpha is represented by birds and crocodiles — which both lay eggs. Whether this fossil really is […]
A nearby ultracool star harbors seven Earth-sized planets, three with orbits that potentially put them in a habitable zone. That makes the system, around a star called TRAPPIST-1, a prime target in the search for signs of alien life. Its discovery also hints that many more cousins of Earth may be out there than astronomers […]
The true nature of the “Tully monster” may once again be a mystery. Just last year, some researchers declared that the extinct aquatic animal was a vertebrate, possibly a relative of today’s lampreys. Not so fast, says vertebrate paleontologist Lauren Sallan. Like a mismatched puzzle, the Tully monster lacks some vertebrate pieces and has others […]
Very distant galaxies have surprisingly little dark matter, the invisible stuff thought to make up the bulk of matter in the universe, new observations suggest. Stars in the outer regions of some far-off galaxies move more slowly than stars closer to the center, indicating a lack of dark matter, astronomer Reinhard Genzel and colleagues report […]
This rainbow pinwheel of mouse placentas isn’t just an eye-catching, award-winning image. The differences in color also provide researchers with new clues to how a mother’s immune system may affect her or her baby’s health during pregnancy. The work could lead to earlier diagnosis and treatment of preeclampsia, a common pregnancy complication. Suchita Nadkarni, an […]
Ever since she was a baby, my older daughter has periodically endured massive nosebleeds. When she was 10 months old, I walked into her room to pick her up after her nap. There, I was greeted with a baby happily standing in what appeared to be a sea of ruby red blood. Her busy little […]
Kids can have virtual out-of-body experiences as early as age 6. Oddly enough, the ability to inhabit a virtual avatar signals a budding sense that one’s self is located in one’s own body, researchers say. Grade-schoolers were stroked on their backs with a stick while viewing virtual versions of themselves undergoing the same touch. Just […]
Stone Age dentists didn’t drill and fill cavities. They scraped and coated them. Two teeth from a person who lived in what’s now northern Italy between 13,000 and 12,740 years ago bear signs of someone having scoured and removed infected soft, inner tissue. The treated area was then covered with bitumen, a sticky, tarlike substance […]