ASTRA’s next-generation satellite architecture will provide data that feeds U.S. global weather prediction models The National Oceanic and Atmospheric Administration awarded Atmospheric & Space Technology Research Associates (ASTRA), LLC a six-month contract to design a constellation of low Earth orbit (LEO) CubeSats able to meet the agency’s future global weather data requirements. Part of NOAA’s ..read more

Viewers like you help make PBS (Thank you ?) . Support your local PBS Member Station here: https://to.pbs.org/DonateEONS Natural history is full of living things that were long thought to have gone extinct only to show up again, alive and well. Paleontologists have a word for these kinds of organisms: They call them Lazarus taxa. Go to http://squarespace.com/eons and use code “EONS” for 10% off your first order. Special thanks to Nobumichi Tamura for allowing us to use his paleoart. Check out his portfolio here: http://spinops.blogspot.com Thanks to Andrey Atuchin, Lucas Lima, Franz Anthony an ..read more

Viewers like you help make PBS (Thank you ?) . Support your local PBS Member Station here: https://to.pbs.org/DonateEONS There are many fossils that challenge our ability to form even the most basic idea of how a living thing looked, or lived, or functioned. One of the longest-running of these mysteries involved a 270-million-year-old sea creature called Helicoprion that once swam the seas around the supercontinent of Pangea. Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Want to follow Eons elsewhere on the internet? Facebook - https://www.facebook.co ..read more

Viewers like you help make PBS (Thank you ?) . Support your local PBS Member Station here: https://to.pbs.org/DonateEONS Smilodon was a fearsome Ice Age cat, the size of a modern-day tiger, that had a pair of fangs nearly 18 centimeters long. But it was only the last and largest of the great sabertooths: ridiculously long canines had already been a trend for millions of years by the time Smilodon was prowling around. And you know what? Those giant teeth just might make a comeback. Correction: At 4:22, we incorrectly use an image of a sand tiger shark in reference to a great white shark. We reg ..read more

Viewers like you help make PBS (Thank you ?) . Support your local PBS Member Station here: https://to.pbs.org/DonateEONS Over the past 20 years, dinosaurs of all types and sizes have been found with some sort of fluff or even full-on plumage. These fuzzy discoveries have raised a whole batch of new questions so we're here to tell you everything we know about dinosaurs and feathers. Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Thanks to Fabrizio De Rossi, Julio Lacerda, Franz Anthony and Studio 252mya for their illustrations. You can find more of thei ..read more

Viewers like you help make PBS (Thank you ?) . Support your local PBS Member Station here: https://to.pbs.org/DonateEONS We know whales as graceful giants bound to the sea. But what if we told you there was actually a time when whales could walk. Signup for your FREE trial to The Great Courses Plus here: http://ow.ly/x0Hi30egd4K Thanks to Lucas Lima and Studio 252mya for their illustrations. You can find more of Lucas' work here: https://252mya.com/gallery/lucas-lima Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios The Great Courses Plus is currently ava ..read more

Viewers like you help make PBS (Thank you ?) . Support your local PBS Member Station here: https://to.pbs.org/DonateEONS Fossil fuels are made from the remains of extinct organisms that have been exposed to millions of years of heat and pressure. But in the case of coal, these organisms consisted largely of some downright bizarre plants that once covered the Earth, from Colorado to China. Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Want to follow Eons elsewhere on the internet? Facebook - https://www.facebook.com/eonsshow Twitter - https://twitter.c ..read more

Viewers like you help make PBS (Thank you ?) . Support your local PBS Member Station here: https://to.pbs.org/DonateEONS Part of why we’re so fascinated with extinct dinosaurs it’s just hard for us to believe that animals that huge actually existed. And yet, they existed! From the Jurassic to the Cretaceous Periods, creatures as tall as a five-story building were shaking the Earth. Thanks to Nathan E. Rogers, Julio Lacerda, Franz Anthony and Studio 252mya for their illustrations. You can find more of their work here: https://252mya.com/licensing Produced in collaboration with PBS Digital Studi ..read more

Viewers like you help make PBS (Thank you ?) . Support your local PBS Member Station here: https://to.pbs.org/DonateEONS Our image of dinosaurs has been constantly changing since naturalists started studying them about 350 years ago. Taken together, these pictures can tell us a whole lot about just how much we have learned. Let's explore the history of dinosaur science as seen through the history of dinosaur art. Special thanks to these paleoartists for allowing us to use their work in this video: Greg Paul: http://gspauldino.com/ Doug Henderson: http://douglashendersonehi.com/ Gabriel Ugueto ..read more

Viewers like you help make PBS (Thank you ?) . Support your local PBS Member Station here: https://to.pbs.org/DonateEONS Probably twice the size of a modern gorilla, Gigantopithecus is the greatest great-ape that ever was. And for us fellow primates, there are some lessons to be learned in how it lived, and why it disappeared. Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Thanks to Julio Lacerda at 252MYA.com and Carlos Eulefi for both of their wonderful reconstructions of Gigantopithecus. Want to follow Eons elsewhere on the internet? Facebook - http ..read more