Hatalmas aszteroidák közelednek a Föld felé, figyelmeztet a NASA

Kettő akkora, mint egy kertes ház, kettő méretei vetekszenek egy utasszállító repülőgépével.

This artist's rendition released 20 April, 2005 by NASA shows a massive asteroid belt in orbit around a star the same age and size as our Sun. Evidence for this possible belt was discovered by NASA's Spitzer Space Telescope when it spotted warm dust around the star, presumably from asteroids smashing together. The view starts from outside the belt, where planets like the one shown here might possibly reside, then moves into to the dusty belt itself. A collision between two asteroids is depicted near the end of the movie. Collisions like this replenish the dust in the asteroid belt, making it detectable to Spitzer. The alien belt circles a faint, nearby star called HD 69830 located 41 light-years away in the constellation Puppis. Compared to our own solar system's asteroid belt, this one is larger and closer to its star - it is 25 times as massive, and lies just inside an orbit equivalent to that of Venus. Our asteroid belt circles between the orbits of Mars and Jupiter. AFP PHOTO/HO/NASA (Photo by HO / NASA / AFP) Fotó: AFP

Borítókép: illusztráció (Fotó: AFP/HO/NASA)