182 articles from THURSDAY 30.3.2023

The untold history of the horse in the American Plains: A new future for the world

The continent of North America is where horses first emerged. Millions of years of evolutionary changes transformed the horse before it became the natural companion of many Indigenous Peoples and the flagship symbol of the Southwest. An international team uniting 87 scientists across 66 institutions around the world now begins to refine the history of the American horse. This work, which embeds...

AI predicts enzyme function better than leading tools

A new artificial intelligence tool can predict the functions of enzymes based on their amino acid sequences, even when the enzymes are unstudied or poorly understood. The researchers said the AI tool, dubbed CLEAN, outperforms the leading state-of-the-art tools in accuracy, reliability and sensitivity. Better understanding of enzymes and their functions would be a boon for research in genomics,...

Tyrannosaurus rex had lips over its teeth, research suggests

Contrary to depiction in movies like Jurassic Park, scientists now believe T rexes were not ‘toothy lipless things’While T rex is often depicted prowling the landscape while sporting a toothy grin, its fearsome teeth may actually have been concealed behind a pair of thin, scaly lips, research suggests.Experts say the perception that theropods were lipless arose because of the huge size of...

Hubble finds Saturn's rings heating its atmosphere

The secret has been hiding in plain view for 40 years. But it took the insight of a veteran astronomer to pull it all together within a year, using observations of Saturn from NASA's Hubble Space Telescope and retired Cassini probe, in addition to the Voyager 1 and 2 spacecraft and the retired International Ultraviolet Explorer mission.

How to Harness Mega Seaweed Blobs For a More Sustainable Future

On Oct. 7, 1492, Christopher Columbus, aboard his ship the Santa María, had been at a complete standstill for 21 days, trapped in a very strange sea which he would later name the Sargasso Sea—sargazo in Spanish meaning “gulfweed.” Today, the Sargasso Sea—an elliptical expanse in the southwestern Atlantic at the center of which lies Bermuda—is six times the...

NASA-enabled AI Predictions May Give Time to Prepare for Solar Storms

Portal origin URL:  NASA-enabled AI Predictions May Give Time to Prepare for Solar StormsPortal origin nid: 486331Published: Thursday, March 30, 2023 - 13:40Featured (stick to top of list): noPortal text teaser: Like a tornado siren for life-threatening storms in America’s heartland, a new computer model that combines artificial intelligence (AI) and NASA satellite data...

Scientists analyze sounds emitted by plants

Researchers have recorded and analyzed sounds distinctly emitted by plants. The click-like sounds, similar to the popping of popcorn, are emitted at a volume similar to human speech, but at high frequencies, beyond the hearing range of the human ear.