Author archives: César Tomé

MI weekly selection #212

MI weekly selection #212

Weekly Selection

By César Tomé

Ostrich-like dinosaur species lost teeth by age 3 A species of dinosaur similar to modern ostriches had teeth when it was young but lost them as it grew older, essentially causing it to become an herbivore after starting life as either an omnivore or carnivore. This discovery about Limusaurus inextricabilis, which lived about 160 million […]

MI weekly selection #211

MI weekly selection #211

Weekly Selection

By César Tomé

Researchers tweak aging process in mice Researchers have reprogrammed adult cells in mice, causing the cells to revert to an embryonic like state, effectively reversing the aging process. By activating four specific genes, scientists expanded the life span of a mouse with a rapid-aging disease and revitalized damaged muscles in a middle-aged mouse. Scientific American […]

MI weekly selection #210

MI weekly selection #210

Science

By César Tomé

99M-year-old feathered dinosaur tail found in amber The feathered tail of a tiny nonavian dinosaur that lived 99 million years ago has been found encased in amber. Soft tissue and eight vertebrae were preserved in the amber along with the tail, allowing researchers to determine it likely belonged to a young theropod. The New York […]

MI weekly selection #205

MI weekly selection #205

Humanities & Social SciencesScienceTechnology

By César Tomé

Technique adds color to electron microscope images Researchers at the University of California at San Diego have developed a technique that adds color to black-and-white electron microscope images. The scientists create a black-and-white base layer by adding a heavy metal to the specimen, then create another layer by adding a rare earth metal that clings […]

MI weekly selection #203

MI weekly selection #203

Humanities & Social SciencesScienceTechnologyWeekly Selection

By César Tomé

Strange objects near neighboring galaxies brighten, then dim A pair of unknown objects near neighboring galaxies appear to produce extremely bright X-ray flares, then dim after about an hour. Astronomers aren’t sure what these objects are, noting that nothing like them has ever been spotted in the Milky Way. New Scientist Landslides appear to have […]