Fox (n): carnivore of genus vulpes; crafty person; scavenger; (vb) to confuse; -ed (adj): to be drunk.

Monday, 10 September 2012

You amaze me.

ONE day soon, mankind will achieve the most amazing feat of all time, and you won't even notice.

You'll be asleep, or on the toilet, or standing in a queue impatiently waiting for a poncey kind of coffee. The amazing thing will happen, and you will carry on doing whatever you were doing before.

It's not just the most amazing thing mankind has done. It's the most amazing thing, so far as we know, that has ever happened. Better than a Mayor on a zipwire, better than a Queen parachuting into the Olympics, better even than a man with no legs climbing a flagpole.

We're leaving the solar system.

Go on, shrug. So what? We've been tinkering around in space for ages.

Except without you noticing it we've gone 11.2 billion miles from home using computers not very different to a ZX Spectrum. That's the same as travelling the 93 million miles between the Earth and the Sun 121 times, relying on the power of something less advanced than a modern digital watch.

There are two unmanned Voyager probes flying through space at 35,000mph, operating at temperatures so low they're 1/10,000th of those on Earth and surviving radiation doses 1,000 times worse than needed to kill you or I instantly.

They were launched in 1977 - confusingly Voyager 2 set off first - to have a peek at our nearest planets, which just happened to be lined up in a row so that it would take a minimum of power to use the gravitational pull of each to ping from one to the other.

They were only intended to last for five years but have worked seven times as long. They were going to look at just two planets, but NASA got some extra cash and the probes - by this point millions and millions of miles from Earth - were reprogrammed remotely via radio wave to go and look at the rest of the solar system as well.

(Think about that the next time the gonk from IT says it can't be fixed. He'll probably tell you deep space doesn't spill orange juice on the keyboard, but it's worth a try.)

The total cost of design, build, launch and 35 years of operation is £540m. It cost us 17 times more than that to put on the Olympics.

And what did we learn? Well, the big red splodge in the middle of Jupiter is a giant storm so huge Earth could fit inside it three times over. It has three moons we didn't know about, and one, called Europa, has a crust of water ice on its surface floating above an ocean 30 miles deep.


Jupiter also has a magnetic field which, when it passes over Io, strips it of heavy ions which create beautiful auroras more amazing than our own Northern Lights, and which generates 3million amperes of electricity - enough to boil 333,000 or so kettles with every pass.

One of Saturn's moons, Titan, has ethane oceans and loads of organic matter with an atmosphere just like Earth before life evolved. Uranus has a corkscrew-shaped magnetic field because it's on the yang after being knocked on its side somehow, and Neptune should have been named after Michael Fish rather than a god of the sea as it's the windiest place in the solar system, with gusts of 1,200mph.

The probes run on electricity produced by plutonium, and although it's about one-quarter the power needed to run the average American house, over time more of their equipment has been switched off to conserve it and keep the important bits going. Heaters, cameras and scientific instruments have been powered down and about all that's left is a gyro, an ultra-violet light meter and the digital tape recorder used to store data.

Yes, a tape recorder. Google it, kids.

This information is transmitted back to Earth in radio waves which take 17 hours to get here, and the signal is about 20billion times less powerful than your wristwatch.

One of the last pictures Voyager took is of Earth, from four billion miles away. We're that little speck in the right hand band of light.


It's more than twice as far away now, at the edge of our system where the solar winds have dropped to nothing and any day it will leave the protective bubble of charged particles called the heliosphere which covers our sun and all the planets which orbit it. We don't know quite when it will happen, because we haven't sent anything through this frontier before.

When the two Voyager probes pass out of the heliosphere they will be in the gap between stars - the interstellar medium. It is as different to our system as the Atlantic Ocean is to a paddling pool, filled with gas from the Big Bang, dust from smashed planets, stars dying and being reborn, and loads of stuff that is either spooky, scary or entirely unknown.

If ET finds them he's going to have a lot to wonder about, because on board is a gold record - we should be grateful it's not a TDK 60 I suppose, but do aliens prefer vinyl? - explaining a little about human life.

There are pictures of a foetus, a page from Newton, music by Bach and Beethoven. There are photographs of scientists and traffic jams, a handy map of the solar system and whereabouts in it we are, and people saying 'hello' in 55 languages including those now extinct.

There are beeps and clicks from human brain waves recorded while a lady read some philosophy aloud and thought about the man she was in love with, and handy instructions etched on the outside of how to use a stylus to play the record and what speed to do it at.

Once it passes into the turbulent unknown, Voyager has enough power for another eight years or so. Then the plutonium will be used up, and it will drift in the interstellar winds. Scientists reckon it will take about 40,000 years for it to reach the nearest planet, which of course might be inhabited by nothing but methane, bacteria or creatures who have evolved beyond CD players.

But there are two even more amazing things about all of this.

The first is that humans decided to do it at all - to see what is out there, for the hell of it, because it would be interesting, to wave at whoever might see, and just because. It's a lot more inspiring than going to Mars because it has minerals, or closing down bits of the space programme because it's all got too expensive.

We are leaving our own solar system with the technological equivalent of a piece of paper flicked by a rubber band, and whether it quietly disintegrates, sends us new things to amaze or is sucked into a black hole and made sentient by a race of robot beings so it tries to return home and destroy us all, it will always have been the most enlightening thing mankind ever did.

The second thing is that on that record are a series of grooves which, when played correctly by an alien who figures out how to do it and has recently found a hi-fi in some space junk and didn't know what it was for, will boom out Chuck Berry's Johnny B. Goode at full volume.

When summer's over, and you wave goodbye to the heroes of the Olympics and Paralympics while wondering what's left to feel good about, think about little green men bopping around to a 1958 twelve-bar blues riff in 'B' and know that you can be proud of yourselves for at least another 40,000 years or so.

Well done, humanity.



32 comments:

Spacebeers said...

You were right. Amazing.

pirate said...

And amazingly the have a twitter account @NASAVoyager and a web page http://voyager.jpl.nasa.gov/ and if you do want to piss of IT support as them why they have to come to your desk to fix it. http://www.pcmag.com/article2/0,2817,33865,00.asp

Anonymous said...

I'm amazed Apple haven't tried to claim that they invented the gold disc and NASA have to destroy the probe unless they handover a billion dollars.

On a serious note I get fed up when hacks moan about the cost of these things, if hacks had their way we'd still think the Earth is flat and taking a shit in a holein the ground.

So well done to Foxy for being enlightened.

MauriceM said...

I love that you of all people thought to write about this. ;)

Richard said...

Thank you Foxy. This article made my day.

BenSix said...

The records also contain a message from Jimmy Carter, which, considering his diplomatic record, should frighten us all.

Jim H said...

Now compare NASA's all-time budget with the cost of the bank bailout.

http://voltagecreative.com/articles/scary-bailout-money-info-graphic/

Alan Bourke said...

An amazing achievement indeed.

You have to be careful comparing computers with these things though - the ones on space probes might be very simple but they're designed to do one task only, perfectly, over and over. The one on your desk is a general purpose machine.

Fi said...

Excellent article. It does still feel like we're 'playing' at getting out there but it's still astounding.

Simon Treves said...

Foxy, you really are a wonderful, continually surprising, effortlessly witty and erudite writer. I totally love each of your posts and am amazed you're not more widely known. Will you ever unmask?

TweetyACA said...

Brightened my lunchtime no end; watched the Olympic athletes then read this wonderfully inspiring piece.

Bercher said...

Interesting article, you can imagine about far off space and you will see it. Whatever you imagine is sure to be out there by chance. If it's biological it has to reach us also. So it's going to be tough if it does.

Victoria said...

Reading this both inspires at the amazing adventure as well as saddens at the subsequent loss to mediocrity of adventure.

Fabulous writing. Thank you.

Anonymous said...

Great article and so glad to read a journalist that "gets" science.

Wouldn't it be funny if Voyager suddenly bounced off a giant back projection video screen like Jim Carey in the Truman Show and those creationist loons were actually right!! (They're not btw)

Alex Greene said...

No, I reckon that Reagan and the Bushes would have left them some even more terrifying messages, had they been president at the time.

Alex Greene said...

Voyager has been a source of inspiration for me since the day it launched, back in the days when Carl Sagan was wearing brown corduroy and breathing.

I'm waiting for the day Voyager does leave the solar system. That will be the fourth bit of inspiring news all year, next to Curiosity's touchdown on Mars, the Dawn probe's flight from one asteroid to another making it a true spaceship, and the transit of Venus.

Thank you for being a journalist that gets what makes me tick.

Anonymous said...

Gonk from IT?
Pebkac

Lennie said...

Great piece Foxster, you really are on a roll

Drew Perttula said...

I guess it would have been a little technical for this article, but I think it's amazing that the Voyagers contributed to scientific understanding as recently as *this last May of 2012*, by reporting magnetic field readings that challenged our model of the heliosphere.

http://phys.org/news/2012-05-interstellar-boundary-explorer-heliosphere-long-theorized.html

-drewp

David Evans said...

Excellent article. One nit-pick, though. They never encountered temperatures 1/10,000th of those on Earth. The temperature of deep space is about 3 degrees K, the Earth's mean temperature is about 300 degrees K.

Anonymous said...

well spotted David, right to the heart of it!

Mark Donahue said...

I remember Carl Sagan describing the gold disk filled with all that information.

It's the most amazing thing humanity has accomplished (or at least on the short list of same), and it's truly astonishing. Thanks for putting it in perspective.

Dennis said...

Spot on spaceman! Dennis

JanetPhD said...

Thanks for your article. My voice and words are on Golden Record, speaking Portuguese greetings to Universe, so I appreciate other folks who appreciate the significance of the Voyager mission. Paz e felicidade a todos, peace and happiness to all.

Beach Bum said...

Bensix, you're an ass.

InstantkarmaNow said...

John Lennon "If you want another name for rock n roll just call it Chuck Berry"

Unknown said...

Ha ha. Uranus.

Cheche_Guevara said...

Excellent Foxy!

I remember watching Reg Turnbull (?) on John Craven's Newsround when I was a kid describing the latest images being sent back, and yet they are still plodding on. I am just wondering now if they are going to make a reappearance as Star Trek predicted. That or some alien bringing them back going 'We only put rubbish out on Tuesdays and Fridays.'

Anonymous said...

It's about time someone in mainstream media took the time to write about this - possibly the greatest achievement of mankind.
I remember when they were launched marvelling at the complexity of the orbital calculations required to get it from planet to planet.
The Voyager probes don't get the credit they, and the people behind them, deserve.

KateBod22 said...

Awe inspiring- gobsmacked!!

The Thinking Flat said...

Reminded me of this piece of poetry from Paraic O'Donnell

http://partialshade.net/2012/04/01/voyager/

I think you might enjoy.

Anonymous said...

At least its a Chuck Berry record. Now imagine if some alien had discovered it was Des O'Connor instead.

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