On March 11, American paleontologists have proposed a new theory of mass extinctions of life on Earth and stressed that 250 million years ago, life on Earth was once great. mass strains in the 26 million year cycle.
With the latest discovery of the dwarf planet Sedna - one of the farthest cosmic objects that can be observed with a solar rotation time of 10.5 to 12,000 years - orbiting the Sun in an ellipse 76-975 times longer than the Earth to the Sun, astronomers believe that this cycle of extinction may be due to the collision between Earth and Comet.
A dark object may be hiding on the edge of the Solar System and occasionally shooting Comets back to Earth.
Dark objects that threaten life on Earth are also known as Nemesis or Death Star scientists, which are red or brown dwarfs, even many times darker than Jupiter.
The impact of meteors caused the extinction of dinosaurs 65 million years ago and the impact of comets made by the Death Star from the Earth sometimes triggered the extinction of life on the planet. this.
Physics professor of Louisiana State University (USA), John Matese, calculated that the Death Star could be 3-5 times larger than Jupiter.
Professor Richard Muller of the University of Berkeley (USA), said the Death Star is a red dwarf and 1.5 light-years from Earth.
The latest WISE Space Telescope from the US Aerospace Agency (NASA) will give an answer to the existence of the Death Star in 2013 when it completes the space sweep in the spectrum of rays. ultraviolet./.