Updated 13 September 2004, 19.02
The Genesis space mission which cost around £150m ended in failure when the capsule containing precious dust particles from the sun crashed to earth.
Exploring space is a risky business - and not to mention pricey.
So do you think the costs involved could be better spent on improving our own planet, rather than trying to find out about others?
Or do you think that space exploration is important and should continue whatever the cost?
Whatever you think, let us know.
Unfortunately this topic is now closed but there are Comments pages on other subjects on the main Chat index.
I think that way too much money is spent on space missions what about first helping homeless and helpless people in this country and then think about space!!
Rosie, 15, Didcot
I think Scientists should be 100% sure everything will work before sending some hopeless piece of metal into space. The money can be used on lots of other things apart from space!
Kazzy, 14, York
No, people learn from their mistakes. I know it's pricey but mistakes now might reduce future ones. I think it's important that we learn about space and if there's life out there. There's a whole universe waiting for its exploral.
Kat, 14, Cardiff
Ok, it's nice to know when we are going to be invaded by little green men- but come on?! Save our planet and stop the killing of innocent lives due to malnutrition first!
Coco, 12, Telford
It's cool to know about space and all but I think they should stop spending more money on finding out HOW we were made and more on keeping us alive.
Natalie, 15, Wales
Yeah, way too much money spent on space! Money should be used for the NHS, schools, caring for the elderly and homes for homeless people.
Tanya, 14, Brighton
Yes and No. Yes, because the money could be spent on things such as youth clubs or hospitals. No, because the scientists are only trying to find out something. You never know what is out there!
Lou, 11, Milton Keynes
I think that it's money worth spending, even if things do go wrong it doesn't mean the money's wasted - we learn through our failures. I thinks it important to explore space, to give us further insight into the origins of our universe.
Victoria, 15, Leire
It's really silly to just spend millions of pounds on space exploration. The money should be spent on building more hospitals and schools in poor countries, and looking after our environment.
Amy, 12, Morden
Thousands of children die each year in Africa from thirst, hunger and disease. We can't afford to help them, yet we can afford to spend millions on space projects that fail more often than not?
Holly, 13, Edinburgh
I think that as much money as possible should be spent - after all, nobody knows if there's anything out there!
Adam, 13, Middlesex
I've never thought about it. It's not really an issue you have strong feelings about. I suppose they are wasting their money a bit, but it would be nice to see what's out there.
David, 12, Cardiff
Yes! They should spend the money on schools and hospitals.
Cate, 13, Belfast
I think space is really interesting. I would like to know more I think them spending lots of money on space is great!
Gina, 11, Bristol
I think that too much money is spent on space especially as most of the machines fail. The money could be put to much better use to improve things on earth.
Sophie, 13, Bridgnorth
It's good to explore other planets, but scientists should be trying to save our own planet and have those kinds of funds.
Maisie, 13, London
I think it's important to send probes and so forth into space. 100's of years ago people felt the need to explore their surroundings, so travelled earth, now we are exploring outside our earth. Explorations years ago were expensive too, but people still went, even if they sometimes failed. It is just the same now as it was then.
Juliette, 13, Cardiff
I think we should sort ourselves out before trying to find other places! I mean, look at the NHS, needing funds while the government's spending millions on trying to collect samples from the moon. In the words of Ron Weasley 'they have got to sort out their priorities'.
Louise, 13, Banstead
Yes way too much time is spent on space. We should spend more time looking at our own planet and how we are ruining it!!!
Jenny, 15, Bristol
That is over the top. It all failed in the end anyway. What a total waste of money. We should be spending money tackling problems on our planet rather than an unknown one.
Michelle, 13, Huddersfield
Well it's better than being privatised. Who'd explore space if places like NASA became privatised? No-one because it would cost too much. I say they keep going, after all, you learn by your mistakes - even if they are £150million mistakes.
Nat, 13, Wirrall
I think that way too much money is spent on space. I think they should stop thinking about something that's so far away and start thinking about the problems right here on earth. That's' where the money should be spent.
Charmaine, 13, Bristol
Can't see the point of using money that's needed to help people on earth!
John, 12, Manchester
What's the point in exploring space when we don't even know much about our own planet! We STILL haven't been to the bottom of the ocean!
Chris, 15, Crowfield
We know next to nothing about space. We need to explore more of it. For that we need money. Put it together, it all makes sense.
Hazel, 13, Cambridge
I think that they are wasting a lot of money on these machines because they always fail and that's millions of pounds worth of machinery.
Antillia, 12, London
Obviously learning about a new planet would excite most people, however I think it's stupid to waste money on a piece of huge metal, and have no idea if it will work or not. Besides we need to learn more about our planet before we go venturing off to another one.
Kavita, 13, London
It's just silly wasting money on stupid machines, they just fail miserably. Whenever they send new ones into space, I always expect them to go wrong, it's so predictable so quit while you're ahead.
Tom, 11, East Sussex
I think the budget is enough for now, it might have to increase once we become a bit more ambitious.
Rory, 15, London
Yeah it's way too much money to spend and for it not to even work. What's the point in wasting money on space? I really don't get it.
Dan, 14, Bolton