GeekwithEnvy

Voyager

Voyager 1 Leaves the Solar System, Maybe?

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Voyager Spacecraft ( Source: NASA/JPL)

The Voyager 1 spacecraft is the most distant human-made object at over 11 billion miles (18 billion kilometers) away from our sun. The mission of the Voyager spacecraft both Voyager 1 and Voyager 2, was to explore Jupiter and Saturn. After major success, the mission was extended to have Voyager 2 explore Uranus and Neptune. Voyager 1 is still operating and sending back data after more than 35 years later. The new mission of the Voyager spacecraft named, the Voyager Interstellar Mission (VIM), is to explore space outside of our solar system, which is all new territory for us.

We have been anticipating Voyager 1 to finally leave our solar system completely and enter interstellar space, one group thinks we have done just that. UMD research scientist Marc Swisdak,  James F. Drake and Merav Opher of Boston University believe that recent data suggests that Voyager 1 is now in interstellar  space, this conflicts with NASA’s view of the data in which they believe the spacecraft is still on the outer edge of our solar system.

It’s a somewhat controversial view, but we think Voyager has finally left the Solar System, and is truly beginning its travels through the Milky Way”

It’s all about our sun’s magnetic field and how it interacts with the magnetic field of interstellar space. The direction that the magnetic field of interstellar space is coming from is the source of controversy. As NASA writes, “Other models envision the interstellar magnetic field draped around our solar bubble and predict that the direction of the interstellar magnetic field is different from the solar magnetic field inside. By that interpretation, Voyager 1 would still be inside our solar bubble.”. This is in contrast to the view that the interstellar magnetic field direction is the same as that which originates from our sun, which would mean that Voyager 1 left our solar system back on July 27th, 2012.

This is obviously new for everyone and discussions will need to continue in order to better understand what’s going on at the edge of our solar system. The best thing we can do is continue to analyze new data as it comes in and hopefully it will provide a clearer picture.

You can read the original article from NASA about this topic and you can learn more about the Voyager spacecraft from a post we did last year.

 

35 Years of Voyager

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September 5th,  2012 marks the 35th anniversary of the launch of Voyager 1 which is now the most distant human-made object and the second longest operating spacecraft.

The mission of the Voyager spacecraft both Voyager 1 and Voyager 2, was to explore Jupiter and Saturn. After major success, the mission was extended to have Voyager 2 explore Uranus and Neptune. Currently the only data we have from Uranus and Neptune came from Voyager, no other spacecraft have since explored these two planets.Voyager

Today, 35 years later these two spacecraft are still functioning and sending back information to Earth from billions of miles away, much farther away from the sun than Neptune and Pluto. The mission of both spacecraft today is to explore interstellar space and has been named the Voyager Interstellar Mission (VIM) .

The VIM has three phases, termination shock, heliosheath exploration, and interstellar exploration. The spacecraft were in an area that was primarily controlled by the suns magnetic field and surrounded by supersonic solar wind, this is the termination shock phase. The spacecraft are now in the heliosheath phase, the outer reaches of the suns solar winds and magnetic influence.  Soon the spacecraft will begin to move into an area where interstellar winds become more prominent and push back and slow our suns solar winds to a sub-sonic speed, eventually there will be no influence and the spacecraft will then be considered to be in interstellar space. The point where deep space begins and our suns influence ends is called heliopause, reaching heliopause is the ultimate mission of Voyager and the spacecraft should have enough power and fuel to last until approximately 2025, which should allow for enough time to reach this disatance.golden recordVoyager

Voyager also contains a 12 inch gold plated copper disk that contains sounds and images from Earth. The sounds are of wind, thunder,birds and other animals. Human speech from different parts of the world and pictures form different cultures are also included on the disk. For a complete list of the disc contents including samples, head here.

For complete details on VIM click here.