The Earth and mars are "sort of" close every 22 months or so as the Earth and Mars both follow their respective orbits around the Sun. We will be "sort of" close to Mars in January 2010, and a little closer in November 2011.
No. The only body outside the earth that humans have ever landed on is the moon. When Mars is as close to Earth as it can ever get, it's about 200 times farther away than the moon is.
No human being has ever walked on any astronomical body except the Earth and the moon. At its closest approach to Earth, Mars is roughly 140 times farther from us than the moon is. Man-made robotic hardware has been placed on the surface of Mars, but nothing from Mars has ever been brought back to Earth.
No, firstly because neither planet really existed at that time (they were barely forming from the disc of debris orbiting the sun - protoplanets) and also Mars has always been right about where it is now, in orbit around the Sun. If Mars had collided with the Earth long ago, there is no force in nature that could have put it into the orbit it now has. But 4 billion years ago, there were probably dozens of other "baby planets" wandering around the solar system, interacting via gravity with each other. Back then , collisions were probably relatively common. Something - probably not quite as big as Mars, but perhaps close - probably DID collide with the proto-Earth, smashing an enormous chunk out of it. The debris from the collision, both from Earth and from that "other planet", then coalesced to form the Moon.
No human being has ever been anywhere near Mars yet.The only body outside of earth that people have ever landed on is the moon.When Mars is as close to earth as it can ever get, it's almost 150 times fartherfrom us than the moon is.
No. The farthest that any human has been from earth is lunar orbit. When Mars is as close to earth as it can get, it's about 200 times farther than that. There is presently no project in progress, no planning, no budget, and no schedule for a manned mission to Mars.
No one from earth has ever stood on Mars.
No human has ever visited Mars. None have ever been further than Earth's moon.
No, you can't ever see a crescent Mars from Earth. Because Mars is farther from the sun than Earth is, there is no point at which less than half of Mars' illuminated size is facing Earth. In other words Mars will always appear as "full" or "gibbous."
Should Earth ever collide with a black hole, it would get destroyed.
No scientists from Earth have ever been to Mars.
No astronauts have ever been to Mars, and no rock samples have ever been sent to Earth.
They are not expected to collide, each has a stable orbit around the Sun.
Because they're both in stable orbits and the closest they can possibly get to each other is somewhere on the high side of 33 million miles apart, making it impossible for them to collide.
Not with earth specifically, but it will eventually collide with the Milky Way Galaxy. Galaxies are mostly empty space, so when this collision occurs the chances of earth suffering a collision as a result are negligible.
No hardware sent to Mars has ever been returned to Earth, and nothing that's landed on the Martian surface has ever been launched from it.
No person has ever been to Mars. No spacecraft has ever surveyed Mars and returned to earth. No spacecraft has ever landed on Mars and lifted off again. No liquid water has ever been observed on Mars, and no samples have ever been removed from its surface. In conclusion, we frankly don't know what the question is talking about.
No,Mars can't bump into Earth because,the gravity isn't strong enough to pull Mars over to Earth. Mars and the earth cant bump because they are in different orbits. They will remain the same distance from the sun and cannot bump into each other.