The heliosphere, a cosmic bubble formed by the Sun, protects our solar system from interstellar threats and influences life's ...

NASA’s Voyager probes are failing, creating an urgent need for a new deep-space mission. A proposed interstellar probe could ...

While NASA has sent two probes out past our heliosphere—Voyager 1 and 2—there’s still a lot we don’t know about the protective shield around the Solar System. A proposed Interstellar Probe ...

The heliosphere is so large that objects in the Kuiper Belt orbit closer to the Sun than to the closest boundary of the heliosphere. As distant stars explode, they expel large amounts of radiation ...

PUNCH isn't the only spacecraft studying the solar corona and the transition into the solar wind. NASA's Parker Solar Probe regularly flies closer to the sun than any other spacecraft has gone before; ...

But that's not all it does, and it affects a much larger area of space. The heliosphere, the area of space influenced by the sun, is over a hundred times ...

Historically, the heliosphere—the area dominated by the solar wind of the Sun—has been used as the boundary of the solar system. But if it is the case that outer galactic forces are chiefly to ...