While in space and orbiting the sun this celestial body is an asteroid. It’s a meteor as its entering earth’s atmosphere, like a fireball flashing across the sky and a meteorite is the actual object that made it to Earth.
Astronomers have found that one of two recently-discovered moons of Jupiter is just two kilometers in diameter and may be the smallest of Jupiter’s 67 satellites. Back in September 2010, scientists discovered two unknown distant satellites of Jupiter while conducting routine tracking observations of the planet’s previously identified moons. To confirm that these were indeed […]
First, the good news. There are fewer asteroids near Earth than previously estimated. Now the bad news. A new NASA survey also finds there may be more than twice as many aligned with Earth’s orbit than thought, which could increase the odds of an asteroid coming close enough to us to cause concern. The findings […]