资讯

Everyone knows that dinosaurs are extinct, and most people have some idea about how it might have occurred. But the exact ...
Learn about the time period that took ... of the Cenozoic era—dinosaurs, pterosaurs, and giant marine reptiles were conspicuously absent from the face of the Earth. Rodent-size (and perhaps ...
Our ability to provide a voice for scientists and engineers and to advance science depends on the support from individuals like you. Whether you’re a scientist, engineer, teacher, or science advocate, ...
The results confirmed Professor Cope’s estimate. At about 564 million years old, these fossils were found to originate from the Ediacaran period during the Precambrian era. The Precambrian era is, as ...
"Predator: Killer of Killers" arrives this summer on Hulu, the first animated film in the long-running franchise and one of ...
N.S. She spoke to CBC Radio's What on Earth about her work. What began as a pandemic-era experiment turned into climate-friendly disposable period products made out of corn husks and cellulose fibres.
to those long-deferred stirrings of the deep imprisoned titans which have divided earth history into periods and eras. The flight of time is measured by the weaving of composite rhythms— day and ...
Earth and environmental sciences cover all aspects of Earth and planetary sciences, and broadly encompasses solid Earth processes, surface and atmospheric dynamics, Earth system history, climate ...
The burgeoning space tourism market is driven by a series of technological innovations, growing interest in extraterrestrial ...
menstruation worked as normal as it does on earth. While many assumed menstrual flow backward in microgravity, no such incidents have been reported. If the women choose to have periods they can ...
After Earth's worst mass extinction, surviving ocean animals spread worldwide. Stanford's model shows why this happened.