Voyager 1 officially left what researchers call the heliosphere — the term for the vast and crucial bubble of the sun's influence — on August 25, 2012. It sailed into the void between stars ...

But not until Voyager feels the magnetic field lines flip will astronomers know that the craft has escaped the heliosphere. “It could happen in the next several months, or it could be several ...

This leaves each probe with three functioning ... from the instrument to determine exactly when and where Voyager 1 exited ...

Launched in 1977 to study the large outer planets, Voyager 1 and 2 are now, respectively, more than 13 billion and 11 billion miles from Earth, exploring the outer boundary of the heliosphere—a ...

This leaves each probe with three functioning ... from the instrument to determine exactly when and where Voyager 1 exited ...

NASA is considering a new interstellar probe to study the heliosphere from the outside, providing unprecedented data on its structure and interactions. The heliosphere blocks cosmic rays ...

There's more bad news for NASA's Voyager 1 and 2 spacecraft ... instruments that have been studying the solar system's heliosphere, a protective bubble formed by the Sun's activity that separates ...

Voyager 2, launched in 1977, will soon find out what the Solar System is like in, and beyond, the heliosphere NASA's Voyager 2 probe has detected an increase in cosmic rays that originate outside ...