Achernar, a blue-white star in the constellation Eridanus. Achernar has an apparent magnitude of 0.5, making it one of the brightest stars in the nighttime sky. It is visible only from locations south of about 32 North latitude. The star has an absolute magnitude of -2.3 and is approximately 118 light-years from the earth.
Leash your cheetah, buckle your seatbelt and tell Usain Bolt to take a knee. We're about to power through some of the speediest stuff this universe – both in the real world and in fiction – has to offer.
As doomsday theorists look to the sky for signs of a 2012 apocalypse, some believe the planets will align in a way that will spell catastrophe to life on our tiny home turf. Are their observations backed up with sound science?