Science

Fossilized grass fragments dated to 200,000 years old. Image: L. Wadley Archaeologists from South Africa have discovered rudimentary beds made by early humans by placing bundles of grass on a layer of ash. Sounds basic, but these stone age beds were more sober than they appear at first glance. “We …

Fragments of glass-fossilized grass and microscopic traces of plant material, dating to about 200,000 years ago, are all that is left of a Paleolithic hunter-gatherer bed in the back of Border Cave. In the same part of the rock shelter, archaeologists found layers as with more recent (as in at …

This week is the Arecibo Observatory in Puerto Rico – an iconic facility made famous by movies like Contact en Goldeneye – had to stop observations of the Universe after a structural cable failed, punching a hole in the giant’s giant reflector dish. Observatory operators say the general facility is …

LOS ANGELES (KABC) – USC researchers have found the probable sequence in which COVID-19 symptoms first appear. The findings show that infected people are more likely to experience fever, then cough and muscle aches, followed by nausea, and / or vomiting, and diarrhea. Knowing the sequencing of COVID-19 symptoms can …

Trilobites – those ubiquitous, half-billion-year-old armored seabugs – had eyes that were faceted like disco balls. Now, new images reveal that these eyes were remarkably similar to those of bees and dragonflies. Trilobites were buglike, multi-legged marine arthropods that appeared during the Cambrian period (543 million to 490 million years …