Just in time for Halloween, scientists have discovered something spooky and strange occurring at the edge of the solar system: The heliopause — the boundary between the heliosphere (the bubble ...

It had been thought that the NASA probe was already passing through the outermost section of the solar system on its way toward the heliopause — the boundary where the solar wind ends and ...

On November 5, 2018, Voyager 2 officially left the solar system as it crossed the heliopause, the boundary that marks the end of the heliosphere and the beginning of interstellar space.

That doesn't mean it left the solar system, though. Rather, Voyager 1 broke through the heliopause: the area where a "wind" of the sun's high-speed plasma particles grinds to a relative halt.

Specifically, the debate centered around the question of whether Voyager 1 was in a previously unknown region at the outer-most edge of the solar system (known as the heliopause) or whether ...

There’s a boundary where hot solar wind meets cold interstellar space, and it’s called the heliopause. Mission scientists compared data from instruments on Voyager 2 to determine that the ...

The boundary layer around the heliosphere is known as the heliosheath, and within that sits the heliopause, the very edge of this boundary layer. One of the functions of the IBEX satellite is to ...

The boundary where the hot solar winds of the heliosphere end and give way to the cold interstellar medium is known as the heliopause, and it’s also the border of interstellar space. On November ...

Learn More >>. Its location is on the edge of our solar system, near the heliopause, where our Sun’s influence gives way to incoming interstellar particles. The mapped items are called ENAs ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. WASHINGTON — It's time to say goodbye to one of the most storied explorers of our age ...