Voyager 1 enters a new region of space

35 years after its momentous launch, Voyager 1 appears to have travelled beyond the influence of the Sun and exited the heliosphere.

Voyager 1 turns 35 as it leaves solar system for ever

Thirty-five years ago today, NASA's Voyager 1 spacecraft set off on its journey to interstellar space - and it's now teetering on the edge.

Sun moves too slowly for long-theorized 'bow shock'

Our sun is moving through the Milky Way more slowly than thought, new data from NASA's Interstellar Boundary Explorer (IBEX) satellite shows.

Voyager probes set to enter insterstellar space

After a 30 year journey, NASA's twin Voyager probes are about to leave the solar system and enter interstellar space.

Solar system's cosmic ray shield weakens faster than expected

The 'force field' shielding our solar system from cosmic rays has declined in intensity by 10 to 15 percent over the last six months.