Showing posts with label space. Show all posts
Showing posts with label space. Show all posts

Friday, 14 June 2013

Spritely does it

If you heard that private individuals were about to put a satellite into space you'd probably think they would be the likes of Richard Branson, Alan Sugar, Clive Sinclair or any other entrepreneurial type with a big wad of dosh in their back pocket.

How about instead a Cornell University graduate engaged in a research project and a bunch of people he's found through a crowd-funding drive?

Zac Manchester with his sprite 'nanosatellite'
That's the background to KickSat - a triumph of our age.  Such a project simply wouldn't have been possible before now.  It's a shining example of technology, community and ambition to try something new.

First of all there's the funding.  Satellites are expensive things to develop and even more to deploy.  So we have the determination and talents and graduate, Zac Manchester, to thank for finding a way to reduce this to  next to nothing.  The KickSat project is non-commercial and has gained NASA sponsorship under it's Educational Launch of Nanosatellites programme.   That basically means that NASA is footing the bill.

Even though the launch cost is being picked up by Uncle Sam, the units themselves don't come for free.  Zac has raised the necessary cash through Kickstarter.  He needed $30,000 and he got $74,586 with each punter paying around $300.

No bigger than two postage stamps - the Sprite spacecraft 

This is satellite on a minature scale.  The main unit is only 30cm and packed within it are 200 tiny satellites (or sprites).  They're not exactly much to look at.  Although they comprise just $25 of electronics they are packed with all the goodies that a satellite needs to function and to stay in orbit - a micro-controller (the computer brain), a magnetometer, a gyroscope, a radio transceiver and a solar array to provide the power.

There any number of technical and logistical issues to overcome - packing the sprites so that they spring out as expected and are orientated to point at the sun to allow the solar cells to generate power.  They've practiced it many times and they reckon they've got it down pat but the real test will be when they deploy for real.

The sprites are being launched in a low-orbit so they'll only last a few months before the fall out and burn up in the earth's atmosphere.  Still, that's not the point.  This is an ambitious project to demonstrate that real satellites can be built and deployed not with the vast resources of governments but by community efforts (plus a little help from the state).  No doubt they will learn heaps and this will hopefully lead to a pile of ever more ambitious projects.

The very best of luck to the KickSat project and all of those follow-ups that it may spawn.  


Wednesday, 1 May 2013

Galactic tourists

Virgin Galactic's SpaceShipTwo
Richard Branson is not a man to be easily discouraged.  His business empire stretches the length and breadth of the globe and he seems to excel at (almost) everything he turns his hand to.

Virgin Galactic must be his most ambitious project to date and he aims to kick off a new age of space tourism.  The challenges are numerous and fraught with danger but I have no doubt that he will triumph as he throws an enormous amount of money at it.

The current asking price for one of those 6 passenger seats on SpaceShipTwo is some $US200,000.  That will buy you approximately 6 minutes of weightlessness and something to brag about when your return to terra firma.  Already they have 500 registered space tourists - many have chosen to remain anonymous but others are happy to be identified.

In a bygone age we would have relied on the military powers of the US or the now defunct Soviet Union for this kind of frontier technology but now we have enterprising billionaires who are prepared to invest their considerable fortunes in pushing those barriers.

The very best of luck to Branson's team for their supersonic trials.

SpaceShipTwo Links

SpaceShipTwo is carried aloft 
SpaceShipTwo

Virgin Galactic

SpaceShipTwo plans to go supersonic (NBC)

Breaking the sound barrier in SpaceshipTwo (Discovery)

How SpaceShipTwo works


01/05/2013

The test scheduled for 30/04 went according to plan and SpaceShipTwo achieved supersonic speed, albeit for just a few secoonds.  These powered flight trials are important stepping stones in gaining approval from the Federal Aviation Administration (FAA) and vital to making this project a reality.

Something that Virgin train passengers can relate to - Virgin Galactic are putting up their prices. Branson is announcing that the asking price for new ticket-buyers is going up to $250,000 a pop.  "In about a week's time, we're going to put the price up to $250,000 until the first 1,000 people have traveled,” Branson said, "so that it matches up with inflation since we started."  Time to get in quick to bag a bargain?

Source: MarsScientific.com
Lots of news stories all over the web.  Here are links to a few of them . . .

Independent Television News (ITN)

CBC News

Space.com

Wired.com

Wednesday, 10 April 2013

Space cowboys

NASA plans to  bag themselves an asteroid
April 1st has been and gone so I'm guessing that this story is for real.  NASA are planning to engage in a bit of trajectory shift by lassoing errant asteroids and swinging them off to park elsewhere.  This appears to be a rehearsal for space missions where we would want to land astronauts onto asteroids.

This is all due to happen in 2019, which is not that far away really.  Good luck to them.


Herding asteroids (Stuff)

NASA lasso plans (SkyNews)


How NASA plan to lasso the asteroid (Source: Daily Mail)

$100 million plan (Daily Mail)

Could we lasso an asteroid? (Discovery News)



Tuesday, 9 April 2013

Best of Earth from the heavens

An absolutely breathtaking video has been released from the millions of shots taken of our planet from the
Italy from the space station
'heavens' in 2012.

How lucky we are to live in an age where we can look down on our planet and marvel at the scale and magnificence of this precious place.

Satellite imagery has made it possible for us to understand so much about how our planet works and what is in store for all life contained in its fragile ecosystem.

Watch the NASA movie and search out some of the wonderful still photos.  It's a humbling experience but a joyous one.

Paluweh, Indonesia erupting
NASA image of the day

NASA Image archive

Earth observatory image of the day

Saturday, 6 April 2013

Cosmology 101

Stephen William Hawking
Can you imagine having an IQ that's off the scale but a body that leaves you virtually paralysed?

Such is the cruel twist of fate that faces our most famous living cosmologist, Stephen Hawking.  The man is a giant in the world of science.  His impressive body of published works, his constant promotional tours and his contribution to what we understand of the universe is quite staggering.

Hawking, now 71,  is also a shining example of how long someone with the debilitating ALS variant of motor neurone disease can survive.

Be entertained by listening to Stephen Hawking explore some big questions about the universe in this TED presentation.

A truly amazing human being.