As summer comes to an end, COVID-19 cases are on the rise again in California. While respiratory viruses usually peak in the winter, the novel coronavirus can also surge in the warmer months.

COVID-19 cases remained relatively steady in late August, with some states showing high viral activity. The XFG variant was the most common strain, accounting for 78% of cases for the four weeks ...

COVID-19 cases remained relatively steady week-over-week in late August, though data from states showed "very high" viral activity at the end of the month, according to the Centers for Disease Control ...

Radioisotope power systems (RPS) keep spacecraft going with nuclear batteries. Until now, RPS operated using a plutonium isotope, but researchers have found that an isotope of americium could keep ...