60-second Science

The American Cancer Society published a study suggesting that for 8 or 34 cancers tracked, case rates are rising from one generation to the next. While headlines often point to sedentary lifestyles and higher weights as a possible cause, some experts say that these factors alone cannot explain the spike. In more hopeful oncology news, there’s a new blood test for colorectal cancer–though it doesn’t replace the importance of colonoscopies.  SpaceX is delaying their attempt at the first-ever private spacewalk—billionaire Jared Isaacman will have to wait. And on the ground, move over hardwood and softwood—two surviving species of the Liriodendron genus point to a new categorization of midwood. Recommended reading: Gen X Faces Higher Cancer Rates Than Any Previous Generation  Why We’ll Never Live in Space  E-mail us at sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover! Learn more about your ad choices. Visit megaphone.fm/adchoices