Want to Leave the Solar System? Here’s a Route to Take

A future interstellar probe mission aims to travel beyond the heliosphere to the local interstellar medium to understand where our home came from and where it is going. Credit: John Hopkins Applied Physics Laboratory.

The edge of the Solar System is defined by the heliosphere and its heliopause. The heliopause marks the region where the interstellar medium stops the outgoing solar wind. But only two spacecraft, Voyager 1 and Voyager 2, have ever travelled to the heliopause. As a result, scientists are uncertain about the heliopause’s extent and its other properties.

Some scientists are keen to learn more about this region and are developing a mission concept to explore it.

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NASA is now Planning a Mission to go 1,000 AU From the Sun, Deep Into Interstellar Space

A different perspective can do wonders.  Perceiving things from a different angle can both metaphorically and literally allow people to see things differently.  And in space, there are an almost infinite number of angles that objects can be observed from.  Like all perspectives, some are more informative than others.  Sometimes those informative perspectives are also the hardest to reach.  

Voyager’s two probes did an excellent job in allowing humanity to access some difficult new perspectives simply given their distance from the Earth.  But now a team of over 500 scientists and volunteers is urging NASA to go even further to find a better perspective by sending a satellite to a distance 1000 times the distance from the Sun to the Earth – almost 10 times how far the Voyagers have traveled in over 35 years.

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