New silicon nanowires can really take the heat

Transmission electron microscope image of silicon-28 nanowire with a layer of silicon dioxide on the surface. Credit: Matthew R. Jones and Muhua Sun/Rice University Scientists have demonstrated a new material that conducts heat 150% more efficiently than conventional materials used in advanced chip technologies. The device—an ultrathin silicon nanowire—could enable smaller, faster microelectronics with a … Read more

What to do if you test positive for Covid-19 now

Two years into the pandemic, many aren’t sure what to do after testing positive for Covid-19. Should they isolate, and if so, for how long? How important is it to see a doctor? What therapies are available, and who is eligible? To help answer these and other questions, I spoke with CNN Medical Analyst Dr. … Read more

Evidence that omicron strains BA.4 and BA.5 are in Minnesota

The COVID saga may be writing its next chapter as two of the newer members of the omicron family may already be in Minnesota. Known as BA.4 and BA.5, the omicron subvariants are quickly evolving into the dominant forms of omicron in South Africa and Portugal, prompting the European Center for Disease Prevention and Control … Read more

Mind-Altering Parasite May Make Infected People More Attractive, Study Suggests

The brain-hijacking parasite Toxoplasma gondii seems to be almost everywhere. The microscopic invader is thought to infect up to 50 percent of people, and a range of studies suggests it may alter human behavior, in addition to that of many other animals. The parasite has been linked with a large range of neurological disorders, including … Read more

A Fundamental New Law Unchains Fusion Energy

Illustration of cloud-like ionized plasma in the ITER fusion reactor tokamak. Credit: ITER Physicists at EPFL, within a large European collaboration, have revised one of the fundamental laws that has been foundational to[{” attribute=””>plasma and fusion research for over three decades, even governing the design of megaprojects like ITER. The update demonstrates that we can … Read more

Boeing’s Second Starliner Spaceflight Mission to International Space Station Has Astronomical Stakes

Can Boeing begin to repair its battered reputation with one rocket launch? Its Starliner capsule now sits atop an Atlas 5 rocket on a pad in Florida, being readied for a flight to the International Space Station Thursday evening, as part of a test program already two and a half years behind schedule. NASA wants … Read more