How long have there been satallites in space??

Question

How long have there been satallites in space??

Answer 1

A few billion years. The earth's moon is a satellite.

The first man made satellite, Sputnik I, was launched on October 4, 1957.

Answer 2

Since the first satellite, Sputnik 1, was launched in 1957, thousands of space probes, satellites and telescopes have been sent into space. Just as we have created rubbish mountains on Earth, we've also accumulated a blanket of junk around the Earth.

Answer 3

Since October 4, 1957, when the Soviet Union launched the first artificial satellite, Sputnik.

Answer 4

Oh, come now Elizabeth, there's a lot of space up there.  A few thousand bits of space junk in several billion cubic kms of orbital space could hardly be called litter - like throwing a bucket of nuts and bolts into Lake Superior.  You wouldn't want to do it forever more, but for now it's not as though the ISS keeps bumping into things.  

Answer 5

If you mean artificial satellites, the first satellite to be put into orbit was Sputnik 1, launched by Russia on October 4, 1957.

Its orbit decayed in January 1958, and it burned up on re-entry.

But natural satellites (our Moon, the moons of Jupiter and other planets, etc.) have been in space since the solar system formed 4.5 billion years ago.