Voyager-1 steps into the dark unknown at the edge of the solar system
Voyager-1 celebrates its 35th anniversary in space by opening a new controversy about where our solar system really ends. Almost everyone thought the tiny NASA spacecraft had found the edge of the solar system after travelling 17.8 billion kilometres from Earth. Now new evidence suggests the edge might still lie ahead, and no one can tell how far.
Launched on Sept. 5, 1977, Voyager-1 is actually the second-oldest working spacecraft. Its identical twin Voyager-2 launched two weeks earlier, and is racing away from Earth in a different direction.
“The laws of physics say that some day Voyager will become the first human-made object to enter interstellar space, but we still do not know exactly when that someday will be.” (AFP PHOTO/NASA)