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		biot on March 31, 2018 \| parent \| context \| favorite \| on: Voyager 1 Fires Up Thrusters After 37 Years ”Voyager 2 is also on course to enter interstellar space, likely within the next few years.” Is the lack of precision on the date because they don’t know precisely where the boundary of interstellar space is?

codewritinfool on March 31, 2018 [–]

Yes. This is based on Voyager 1's heliopause exit back in 2012 at 121 AU. It is presently at about 141 AU.

Voyager 2 is at at about 117 AU now.

The uncertainty in "the next few years" statement is because of the assumption is that the heliopause will occur at roughly the same distance that Voyager 1 found it at.

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