Black Hole Fakeout A recently discovered "black hole" may instead be an example of "vampirism" in a binary star system: One star sucks matter from the other and acquires a misleadingly large amount of angular momentum, Brandon Specktor reports for LiveScience. This "undiscovery" highlights the challenge in searching for black holes. By their very nature, they are invisible. It wasn't until 2021 that the first intermediate-mass black holes were discovered, as Jonathan O'Callaghan reported for Quanta. Rodent Rewind Scientists were able to reverse aging in the tissues of middle-aged mice, reports Ian Sample for The Guardian. They hope the therapy will eventually be able to tackle age-related human illnesses such as Alzheimer's disease and cancer. This research builds on that of the Nobel laureate Shinya Yamanaka, who showed that cells heal wounded tissue by reverting to a more fetal state, as Jordana Cepelewicz wrote for Quanta in 2018. | |