Dr. Frank is a professor of astrophysics at the University of Rochester. A few years ago, on a flight, I was seated next to a man in his mid-20s. He looked at the astrobiology textbook I was reading ...

A new animated series featuring characters from the 1970s Mr. Men Little Miss books by Roger and Adam Hargreaves has arrived on YouTube. Mr. Men Little Miss Mini Adventures, a collaboration between ...

Mice with two fathers have, for the first time, gone on to have babies of their own, showing that mice created with two sperm cells can be healthy and fertile – and paving the way to a future in which ...