An asteroid with us on our trip around the sun

Astronomers detected an asteroid which follows the orbit of the Earth around the sun. The rock-between 200 and 300 meters in diameter and 2010 TK7-christened it the Trojans, which are those that share an orbit with a planet near stable points. Because they remain in front of or behind the planets in the same orbit, never collide with them.

According to the science specialist for the BBC, Jonathan Amos, it is a fascinating finding because the relative stability and proximity of the Trojan asteroids makes them potential targets for future space missions, when they go beyond the International Space Station (EEI).

The telescopes of the world is ready for a giant asteroid

Has a diameter of more than four football fields or, as defined by NASA, is as big an aircraft carrier. This is a big one, in terms of space; pass close to Earth. YU55, as the space rock is called circular, not dangerous in any way, there is no risk of collision with the Earth as it is in the closest point (about 324,600 kilometers), its gravitational effect on the Earth will be so minuscule that can hardly be measured. But his interest in another aspect: its rarity.

NASA astronomers discovered the smallest planet

Astronomers discovered the smallest planet outside our solar system. This is the first that is certainly rocky like Earth. Measurements of extraordinary precision-called Kepler showed that 10b is 1.4 times the diameter of Earth and a mass 4.6 times greater than he. However, because it orbits very close to its star, the exoplanet could not support life. The discovery has been hailed as "one of the deepest in the history of mankind."