The United States Mint has announced that Maya Angelou and Sally Ride will be the first two women honored as part of the American Women Quarters Program, which will commemorate the accomplishments and contributions of 20 prominent woman in American history by putting them on the back of quarters, New York Times reports.
You might not want to book that trip to Mars just yet. Researchers have published a study estimating that the risk of cancer from cosmic rays is twice as high as previously thought. They’ve determined that conventional risk models are incomplete. While NASA and other groups believe that radiation-based cancer stems only from direct cell damage and mutations, the new model accounts for the possibility that heavily damaged cells will increase the cancer risk for “bystander” cells. There’s a knock-on effect that would be difficult to escape.