Enlarge / Liver lesions in patient with chronic active hepatitis C. (credit: Getty | BSIP) The US Centers for Disease Control and Prevention has ruled out the pandemic coronavirus, SARS-CoV-2, as a possible cause of the puzzling, international outbreak of severe hepatitis (liver inflammation) in children, according to a statement released Friday. The outbreak has […]
Enlarge / A very detailed view of one of the Milky Way’s satellite galaxies. (credit: NASA/STScI) In mid-March, NASA released an image from the Webb Space Telescope that demonstrated that its primary mirror reached the point where it focused light as finely as physics would allow for hardware of its size. That was a critical […]
Enlarge (credit: Getty Images ) Earth Day was April 22, and its usual message—take care of our planet—has been given added urgency by the challenges highlighted in the latest IPCC report. This year, Ars is taking a look at the technologies we normally cover, from cars to chipmaking, and finding out how we can boost […]
Enlarge / Georgia Tech’s Alexandre Locquet (left) and David Citrin (right) with an image of the 16th-century funerary cross used in their study. (credit: Georgia Tech-Lorraine) In 1843, archaeologists excavated the burial grounds associated with Remiremont Abbey in Lorraine, France (the abbey was founded in the 7th century). It was medieval custom to bury the […]
Enlarge / The number of days between the first 50 Falcon 9 launches, the second 50, and the last 50. (credit: Eric Berger) SpaceX launched its first Falcon 9 rocket on June 4, 2010, nearly a dozen years ago. During those first years, the company grappled with a whole host of challenges, from things as […]
Enlarge / The Space Launch System rocket rolled back to the Vehicle Assembly Building this week. (credit: Trevor Mahlmann) Welcome to Edition 4.41 of the Rocket Report! For your situational awareness, Rocket Lab’s “There and Back Again” mission is now scheduled for 22:35 UTC on Friday from Mahia Peninsula in New Zealand. The company is […]
Enlarge (credit: Getty | Barcroft) Health officials in Wisconsin are investigating what could be the first child death in the US—and the second worldwide—linked to a growing international outbreak of unexplained liver inflammation, aka hepatitis, in children. In a health alert Wednesday, Wisconsin health officials said they are investigating four cases of unexplained hepatitis in […]
Enlarge / In the case of the samoyed, selection for physical characteristics produced a dog that sure looks happy. (credit: Zhao Hui) Many dog breeds are purely about appearance—think poodles and the Pekingese. But plenty of other breeds are devoted to specific tasks, like racing greyhounds. For many of these tasks, physical appearance isn’t enough: […]
Produced and directed by Corey Eisenstein. Transcript coming soon. (video link) Our previous episode of Edge of Knowledge peeped back in time a few billion years to explore the particular origins of life on Earth , but now we aim our lens in a different direction. Rather than looking at the distant past to see […]
Enlarge (credit: Getty images) There have been a variety of demonstrations of the capabilities that atomically thin materials can bring to electronics—extremely small size, excellent performance, and some distinctive properties. But almost all of these demonstrations required that the electronics being tested were essentially assembled by hand. Materials like graphene are often placed on a […]