Earth 'hunts' aliens
People are still debating whether UFOs and aliens are real. Evidence of UFOs still divides humanity into two groups, supporting or protesting.Strange signals from the star are 11 light years from Earth
Scientists at the Arecibo Observatory in Puerto Rico on May 12 discovered abnormal radio signals that were most likely coming from Ross 128, a red dwarf star.Video: The 400 meter long meteorite is capable of crashing into the Earth
A large pea-shaped meteorite with a 400-meter-high skyscraper can plunge into the Earth in the future.