[dropcap]T[/dropcap]he largest extinction in Earth’s history marked the end of the Permian period, some 252 million years ago. Long before dinosaurs, our planet was populated with plants and animals that were mostly obliterated after a series of massive volcanic eruptions in Siberia. Fossils in ancient seafloor rocks display a thriving and diverse marine ecosystem, […]
For the second time in history, a human-made object has reached the space between the stars. NASA’s Voyager 2 probe now has exited the heliosphere – the protective bubble of particles and magnetic fields created by the Sun. Comparing data from different instruments aboard the trailblazing spacecraft, mission scientists determined the probe crossed the outer edge of […]
[dropcap]C[/dropcap]HAMPAIGN, Ill. — The effects of global climate change taking place in the Arctic may influence weather much closer to home for millions of Americans, researchers report. The United States has experienced many changes in severe-weather behavior over the past decade, including fewer tornado touchdowns than in the past. A new study suggests that atmospheric […]
NASA’s Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) spacecraft is scheduled to rendezvous with its targeted asteroid, Bennu, on Monday, Dec. 3 at approximately noon EST. NASA will air a live event from 11:45 a.m. to 12:15 p.m. EST to highlight the arrival of the agency’s first asteroid sample return mission. The program will […]