CREDIT: NASA/ESA/Amy Simon (NASA-GSFC)/Joseph DePasquale (STScI) Jupiter’s Great Red Spot—a rotating storm that is so large it could swallow Earth—isn’t what it used to be. Research has ...

Jupiter then appears to reverse direction before ... arguing that it could have been a supernova. An exploding star that appears bright for a few weeks—and sometimes even visible in daylight ...