Unusually large asteroid to race by Earth
An 'unusually large' asteroid - size of a city block - will zoom past Earth but poses no risk of a collision.
Once in awhile one will come out of nowhere like this one, which is actually pretty big.
Unusually large asteroid to race by Earth
An 'unusually large' asteroid - size of a city block - will zoom past Earth but poses no risk of a collision.
Once in awhile one will come out of nowhere like this one, which is actually pretty big.
NASA Says There May Really be a Planet X
Planet X" may be real: A planet four times the size of Earth may be lurking at the outer edges of our solar system, too far away to be seen by Earth-based telescopes. Astronomers think it's there because they've noticed that something is tugging at small icy objects past Neptune, helping to explain the mystery of those objects' peculiar orbits.
Is 'Planet X 2.0' Lurking Beyond Pluto's Orbit?
Before the doomsayers hijacked "Planet X" and used it as a phantom (a.k.a. "Nibiru") to scare people into believing the 2012 doomsday hype, the hunt for Planet X was an exciting astronomical quest to find a hypothetical world in the outermost reaches of the solar system in the early 20th century.