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Post at: Apr 26 2022

NASA Voyager Space Craft

Why in News

  • Both Voyager spacecraft are rushing away from earth and into interstellar space yet for a portion of every year, both spacecrafts distances to earth decrease.

Why is to so ?

  • The answer is that for a few months each year Earth in its orbit moves toward the spacecraft faster than they are moving away. Earth's motion around the sun is faster than the motion of the voyager spacecraft.
  • Earth moves through space at speed of 67,000 miles per hour (30 km/s).
  • Voyager 1 moves at a speed of 38,210 miles per hour (17 km/s).
  • Voyager 2 moves at a speed of 35,000 miles per hour (15km/s)
  • So, for a portion of the year, earth comes around the side of the sun and is speeding toward the space craft faster than they are moving away.
  • Therefore their distance to Earth are getting closer, if only temporarily. They never change their outward motion. It is we who change.

About Voyager Mission

  • Launched in the 1977 and the probes sent by NASA were only meant to explore the outer planets - but they just kept on going.
  • Voyager 1 departed earth on 5 september 1977 a few day after voyager 2 and left our solar system in 2013.
  • It is the most distanced spacecraft from the earth.

Objective of the Voyager mission

  • To extend the NASA's exploration of the solar system beyond the neighborhood of the outer planet to the outer limits of the sun's sphere of influence, and possibly beyond.

What is internstellar space

  • Scientist use the Heliopause to work where interstellar space begin. Although depending on how you define our solar system it can stretch all the way to the Oort cloud. Which begins 1,000 time farther away from the sun than earth orbit.


 

 


 


 


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