Our Sun’s Undiscovered Stellar Nemesis Is Still Out There, Says Physicist

Our Sun’s Undiscovered Stellar Nemesis Is Still Out There, Says Physicist

The decades old idea that our solar system’s Oort Cloud is continually perturbed by a heretofore undetected low mass Red Dwarf star remains the best explanation for periodicities found in Earth’s impact record. Or so says a well known physicist who has long championed this idea.

Our sun's undiscovered stellar Nemesis is still out there, says...

Long period, high inclination comets of the sort that can cause extinction level impacts here on Earth have long been thought to originate from a theoretical Oort Cloud. That is, a roughly spherical cloud of icy cometary objects that number into the trillions at distances that extend up to 1.6 light years away. More recently, Richard Muller, a well-known professor emeritus of physics at the University of California Berkeley, put forth the idea t…