Name: The Midcontinent Rift Location: U.S. Midwest Why it’s incredible: The rift nearly broke North America in half around 1 billion years ago. North America’s “broken heart” is an ancient rift va… [+4200 chars]Read More
Physicists detect rare secondgeneration black holes that prove Einstein right again Live Science
Physicists have analyzed two enormous black hole mergers that happened one month apart and have come up with tantalizing evidence that rare "second-generation" black holes were involved.
