Oldest African dinosaur ever found unearthed in Zimbabwe

Oldest African dinosaur ever found unearthed in Zimbabwe | NASA will try to launch Artemis again on Saturday, Sept. 3 | FDA authorizes updated COVID-19 boosters Created for {EMAIL} | [Web Version]( August 31, 2022 CONNECT WITH LIVESCIENCE  [Facebook]( [Twitter](  [LIVESCIENCE]( Amazing science every day [SIGN UP]( ⋅ [WEBSITE](  [] Top Science News [] [Oldest African dinosaur ever found unearthed in Zimbabwe]( [Oldest African dinosaur ever found unearthed in Zimbabwe]( (Andrey Atuchin) The oldest definitive dinosaur species ever discovered in Africa — and one of the oldest dino species to walk Earth — has been unearthed in Zimbabwe, a new study finds. The finding sheds new light on dinosaur evolution, and on one of the most fundamental questions of Triassic paleontology: Why did dinosaurs live in only some parts of the ancient supercontinent Pangaea? 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The Artemis 1 rocket is made up of the six-person Orion capsule perched atop the 30-story Space Launch System (SLS) — dubbed the 'mega moon rocket' — and was initially scheduled to embark on its maiden voyage to the moon and back on Monday (Aug. 29). But engineers were unable to cool one of the rocket's four core stage RS-25 engines down to a safe temperature in time for launch. That issue, along with poor weather conditions, forced NASA to cancel the launch just two minutes into the spacecraft's two-hour launch window, NASA officials said at a news conference on Tuesday (Aug. 30). Full Story: [Live Science]( (8/31) [LinkedIn]( [Twitter]( [Facebook]( [Email]( [] Your Health [] [FDA authorizes updated COVID-19 boosters]( [FDA authorizes updated COVID-19 boosters]( (Shutterstock) The U.S. Food and Drug Administration (FDA) has authorized two newly updated COVID-19 booster shots: one made by Moderna and one made by Pfizer and German biotechnology company BioNTech, according to a statement released Wednesday (Aug. 31). Both boosters guard against the original SARS-CoV-2 coronavirus variant targeted by the original vaccines as well as two omicron subvariants, known as the BA.4 and BA.5 lineages. These two versions of omicron are "currently causing most cases of COVID-19 in the U.S. and are predicted to circulate this fall and winter," the FDA statement notes. BA.5 accounts for nearly 90% of current cases in the U.S., and BA.4 accounts for most of the remaining cases, STAT reported. Full Story: [Live Science]( (8/31) [LinkedIn]( [Twitter]( [Facebook]( [Email]( [] In the Sky [] [Watch a gargantuan fireball tumble over New York in the dead of night]( [Watch a gargantuan fireball tumble over New York in the dead of night]( (Getty Images) On Sunday (Aug. 28) a fireball streaked across the sky over the northeastern United States, amazing hundreds of stargazers as the hurtling ball of flame briefly lit up the night. At least 120 witnesses reported the fireball to the American Meteor Society (AMS), a nonprofit organization that collects reports of meteor sightings around the world. One witness, Eric Lofrgen of Palmyra, New York, fortuitously managed to record the fireball's 5-second approach with his vehicle dashcam. You can watch the brief blaze, courtesy of Lofgren and the AMS, in the video clip included in the full story. Full Story: [Live Science]( (8/31) [LinkedIn]( [Twitter]( [Facebook]( [Email]( [] Curious Creatures [] [Mammals ballooned in size after the dinosaurs went extinct. Here's how they did it.]( [Mammals ballooned in size after the dinosaurs went extinct. Here's how they did it.]( (Artwork by H. Sharpe) About 62 million years ago — only 4 million years after an Everest-size asteroid hit Earth and ended the age of dinosaurs — fuzzy creatures with finger-like digits on their feet emerged as some of the first large mammals to ever roam the planet. These animals, about the size of a big dog, towered over the shrew- to possum-size mammals that existed before the space rock struck, and now, scientists think they know how the critters outgrew their diminutive mammal cousins. 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