Ice Moves Out of Aniak

Scientists analyzing the genomes of thousands of people across Japan discovered evidence for a previously overlooked third ancestral group, challenging the long-accepted “dual origins” theory. The newly identified ancestry appears linked to the ancient Emishi people of northeastern Japan. Researchers also uncovered inherited Neanderthal and Denisovan DNA connected to conditions like diabetes, heart disease, and cancer.

Symbiosis, or the interaction of two unalike species, is common and often necessary for survival. In insects, symbiotic microbes often facilitate and promote the growth of hosts. Before the symbiotic collaboration can begin, however, hosts must acquire their symbionts. Sometimes, they are passed on from parents to offspring; other times, hosts must find their symbionts themselves—or face dire consequences if they fail to do so in a timely fashion, a new Frontiers in Microbiology study has shown.

Just a few hours before the Orion spacecraft crossed the sky en route to the moon on April 1, mechatronics engineer Rodrigo Trevisan Okamoto received confirmation he had been waiting for since the Artemis 2 mission was announced in 2023. The email from NASA stated that the crew of the first crewed mission to orbit the moon in half a century would carry a device developed by Okamoto and his team at Condor Instruments, a São Paulo-based startup.

Earth is quietly collecting radioactive debris from an ancient stellar explosion as our Solar System drifts through a giant cloud of gas and dust between the stars. Scientists analyzing Antarctic ice up to 80,000 years old discovered traces of iron-60 — a rare isotope forged in supernova explosions — and found evidence that this “cosmic ash” has been lingering inside the Local Interstellar Cloud for ages. The discovery suggests the cloud surrounding our Solar System was shaped by a long-ago expl