Voyager:
Looks
pretty quiet out here, but boy there are a lot of stars! Hold on, is that a spaceship ahead?
(The
spaceship quickly comes up to Voyager)
Visitor:
@*&%##@@ *&&^%%$$##
Voyager:
Please
speak English. I don’t understand your
language.
Visitor:
Identify
yourself!
Voyager:
I am a spacecraft.
Visitor:
What
are you doing out here?
Voyager:
I’m an
interstellar space
probe launched by the United States of America in
1977 to study the outer Solar System
and interstellar
medium.
Visitor:
Oh, right, I know about you. You’re from that beautiful but bellicose
planet called Earth. What’s new?
Voyager:
Well, my country is voting for a new
President in November.
Visitor:
What is this president’s job?
Voyager:
He makes the world safe for democracy.
Visitor:
Who are the candidates?
Voyager:
One white guy and one black guy.
Visitor:
Who has the better jump shot?
Voyager:
The black guy.
Visitor:
He’ll win.
Voyager:
Really?
Visitor:
Really.
Well, so long, I’ve got to shove off.
Happy trails!
Spacecraft to starship? 35 years after launch, Voyager 1 is barreling toward the stars
Sooner or later, the workhorse spacecraft will bid adieu to the solar system and enter a new realm of space — the first time a manmade object will have escaped to the other side.
“We’re anxious to get outside and find what’s out there,” he said.
When NASA’s Voyager 1 and Voyager 2 first rocketed out of Earth’s grip in 1977, no one knew how long they would live. Now, they are the longest-operating spacecraft in history and the most distant, at billions of miles from Earth but in different directions.
Wednesday marks the 35th anniversary of Voyager 1’s launch to Jupiter and Saturn. It is now flitting around the fringes of the solar system, which is enveloped in a giant plasma bubble. This hot and turbulent area is created by a stream of charged particles from the sun.
Outside the bubble is a new frontier in the Milky Way — the space between stars. Once it plows through, scientists expect a calmer environment by comparison.
When that would happen is anyone’s guess. Voyager 1 is in uncharted celestial territory. One thing is clear: The boundary that separates the solar system and interstellar space is near, but it could take days, months or years to cross that milestone.
Voyager 1 is currently more than 11 billion miles from the sun. Twin Voyager 2, which celebrated its launch anniversary two weeks ago, trails behind at 9 billion miles from the sun.
They’re still ticking despite being relics of the early Space Age.
Each only has 68 kilobytes of computer memory. To put that in perspective, the smallest iPod — an 8-gigabyte iPod Nano — is 100,000 times more powerful. Each also has an eight-track tape recorder. Today’s spacecraft use digital memory.
The Voyagers’ original goal was to tour Jupiter and Saturn, and they sent back postcards of Jupiter’s big red spot and Saturn’s glittery rings. They also beamed home a torrent of discoveries: erupting volcanoes on the Jupiter moon Io; hints of an ocean below the icy surface of Europa, another Jupiter moon; signs of methane rain on the Saturn moon Titan.
Voyager 2 then journeyed to Uranus and Neptune. It remains the only spacecraft to fly by these two outer planets. Voyager 1 used Saturn as a gravitational slingshot to catapult itself toward the edge of the solar system.
“Time after time, Voyager revealed unexpected — kind of counterintuitive — results, which means we have a lot to learn,” said Stone, Voyager’s chief scientist and a professor of physics at the California Institute of Technology.
These days, a handful of engineers diligently listen for the Voyagers from a satellite campus not far from the NASA Jet Propulsion Laboratory, which built the spacecraft.
The control room, with its cubicles and carpeting, could be mistaken for an insurance office if not for a blue sign overhead that reads “Mission Controller” and a warning on a computer: “Voyager mission critical hardware. Please do not touch!”
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