[Berosus]

I thought the Oort Cloud was supposed to be closer than the Heliopause, the imaginary line between the solar system and interstellar space. Didn’t the Pioneer (10 & 11) and Voyager probes cross the Heliopause already? This article gives me another reason to ask if the Oort Cloud really exists.

[Spirochete]

I thought the Oort Cloud was supposed to be closer than the Heliopause, the imaginary line between the solar system and interstellar space. Didn’t the Pioneer (10 & 11) and Voyager probes cross the Heliopause already?

You may be thinking of the Kuiper belt. The Oort cloud is much, much further than the heliopause. Its inner boundary is roughly 2,000 AU distant and it extends out about 1 light-year.

The Voyagers won't reach the Oort cloud for several centuries.

[Larry Lucido]

Mort from Oort.

[SunkenCiv]

[Berosus:] I thought the Oort Cloud was supposed to be closer than the Heliopause, the imaginary line between the solar system and interstellar space. Didn’t the Pioneer (10 & 11) and Voyager probes cross the Heliopause already? This article gives me another reason to ask if the Oort Cloud really exists.

IMHO, the Oort Cloud has a merely hypothetical existence, coming into being as a kludge to fix problems with the most popular family of Solar System formation models..

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[Mr. K]

The Oort ‘cloud’ is not much of a cloud- you could travel thought it and never hit a thing- never even come close