outer space exploration

[uls]

May warp drive ako sa garahe...

[mbeige]

With our current propulsion technology, it will take generations to reach the nearest stars. That's why it was proposed to have "generation ships" where entire generations of people will be born, live and die as they cross the distances between the stars.

To get around this, research on FTL (faster than light) systems are still going on until today. This includes teleportation and non-conventional propulsion systems which might offer faster speeds.

Thanks for making that clearer, I forgot how to compute for a light year (Star Trek)

[CVT]

Hmmm so you think ung mga tumulong gumawa ng pyramid sa ancient egyptians galing ng mars? San na kaya sila? Too good to be true kasi eh. If aliens exists bakit di sila magpakita diba, shy type cguro.

OT:
Bro.,- just got the idea from watching Star Trek series/movies.

One of the probable reasons why advanced civilizations would not want to interfere with a civilization like ours is that they want us to undergo the normal evolution process. No interference/shock with their advanced technology.

3606

[CVT]

With our current propulsion technology, it will take generations to reach the nearest stars. That's why it was proposed to have "generation ships" where entire generations of people will be born, live and die as they cross the distances between the stars.

To get around this, research on FTL (faster than light) systems are still going on until today. This includes teleportation and non-conventional propulsion systems which might offer faster speeds.

And distances will now be measured in parsecs.....
Areas in sectors/quadrants...

Whew!

3606

[niky]

The problem is light speed.

Anything that you can do in a lab has, at one point or another, happened in nature.

Unfortunately, we've never observed faster-than-light travel. Faster-than-light radio may be possible by using paired particles (quantumly-paired... but there are problems with doing even this), but you'd still have to send that radio by rocket.

Given current technology, and the resources available to us, the best we might be able to do is to send a seed-ship to another star on a slow-burn. It'd contain the stuff necessary to create life, to be released upon the target world when the rocket gets there.

The rocket would take thousands of years to get there. To make a journey of even "just" two lightyears in less than a century requires an enormous amount of thrust, which means a lot of fuel... fuel that the rocket would have to use again to slow down at the target.

On a slow burn, you can keep fuel needs to a minimum. But you'd have to make sure the mechanisms and electronics used would survive a few centuries, at least.

Once at the target world, the rocket seeds it with artificial-life in several places, hoping that the genetically designed a-life will take hold.

If we're really smart, we'd include pre-made instructions in the DNA of the a-life... give it huuuuuge DNA strands that we can encode the human genome into a hundred times over, or even most of the species available on Earth. Once the A-life has developed into a suitable eco-system, the human DNA will trigger, and one of the artificial life species will develop into humanity.

It'd take over a million years (the proto-life would have to terraform the world first, then develop to a point where the artificial ecosystem could support human life), but it's possible.

[6shooter]

OT:
Bro.,- just got the idea from watching Star Trek series/movies.

One of the probable reasons why advanced civilizations would not want to interfere with a civilization like ours is that they want us to undergo the normal evolution process. No interference/shock with their advanced technology.

3606

Unless kayo po ay ang Estados Unidos at tingin niyo kailangan mag interfere. LOL

Paano naman po kung "wormholes" ang gamitin para sa paglakbay sa kalawakan? para hindi po kailangan lumakbay ng napaka layo?

At kung ginawa ng sangkatauhan ang pag gawa ng buhay sa ibang planeta siya na ba ang magiging Diyos? Tanung lang po.

[VtEC]

Man has landed on the moon, done space explorations, discovered new planets, done space travel.....who would think man can't find a way to replace oil?

yan nga ang point e.they are investing billions of $ sa mga space explorations para saan?what now kung makadiskubre sila ng sangkatutak na planeta??magbebenefit ba tayo?yup, most industrialized countries are using nuclear energy but what about us?we are still dependent on arab oil producing countries.instead of exploring the space,this giants(US/Russia) must really exert effort to look for a mean to replace the crude oil, say by water.pero sa tingin ko, alang effort na ginagawa kasi business is business.

[niky]

There are billions of dollars being sunk into alternative energy, already. It's not like we can magically create energy from water.

Sure, water can be split into oxygen and hydrogen, which can be recombined in combustion to produce energy, but the power required to split them is always more than you can get from the reaction.

It's a fact of life... sea water is not the magical answer to our energy problems.

Nuclear Fusion is a good bet, but after billions of dollars worth of research, we still aren't close to a self-sustaining or power-producing reaction.

Space exploration is not a waste. Pure science like space exploration and quantum physics may use a lot of money, but there are often technology spin-offs and applications that result from them. Advances in medicine, metallurgy, etcetera, all result from the space program.

And we need to think in the long term. This planet will only remain habitable for humans for another couple of hundred thousand years... maybe a million or two, at most. For the survival of the human race, we need to find a way to get humanity out of the solar system and out to the stars.

[oliver1013]

Matalino ang tao pero hindi pa ganun katalino at ganun katibay ang katawan para magsurvive sa space ng matagalan. Sa laki ng space, or solar system lang natin our planet is so small parang alikabok lang. And we are just another life form on it, parang mga mikrobyo lang tayo. Kita niyo naman konting increase lang ng temperature tigok na tayo, konting lamig lang ganun din. How can you expect our frail bodies to survive space.

[ghosthunter]

To get a spaceship to go faster, it would need a better power source and chemical rockets. A "nuclear fusion" engine could be possible solution. Fusion is what makes our sun burn. Harnessing the power to drive a reaction engine will result in a ship that can accelerate faster than standard chemical rockets without the need to have massive amounts of fuel on board.

The result? We can have interstellar travel not measured in generations but simply years for the closer stars. I computed a ship using fusion propulsion accelerating & decelerating the ship at 9.81 meters/sec2 (or one gravity) during the entire trip to Alpha Centauri (4.71 light years away) will only take less than 5 years to arrive at destination.

Of course this will still mean the spaceship must be self-sufficient in everything so it would arrive intact with all crew ready when they arrive at their destination. BTW, I assumed the ship will only do 9.81m/s2 acceleration to simulate gravity during the entire trip to minimize the "need" to have artificial gravity.

Since such a stellar travel spaceship will probably be very large, in-system interplanetary travel will have to be done by smaller versions of it. To make the smaller interplanetary ships more controllable than using pure nuclear fusion action-reaction propulsion, the fusion reaction can be harnessed be heating up water to generate extreme high pressure steam and generate thrust. Water can be harvested from asteroids and comets since it has been proven be space scientists that water is relatively plentiful.

[empy]

double post

[empy]

once we succeed in our project to refit the Yamato into a super-space battleship, then we will be ready for a space exploration mission

[oldblue]

Hmmm so you think ung mga tumulong gumawa ng pyramid sa ancient egyptians galing ng mars? San na kaya sila? Too good to be true kasi eh. If aliens exists bakit di sila magpakita diba, shy type cguro.

i've been reading ancient history. nakarating na nga ako sa crystalinks.com eh hehehe

eto lang siguro yun for people who are seeking life from another world or even seeking god, the truth is buried in time na.

let's say for instance that science and religion work together and find out that the original inhabitants of our planet earth were survivors from dying planet Mars,

eh di panibago na naman soul-searching and research yun sa Mars naman. tatagal din ng singtagal as our history at ilang generations pa ulit mag-research


eh pano kung after another 1000 years, na-prove ng descendants natin na galing naman pala mga tao ng Mars sa Jupiter


yoko na... concentrate na lang ako sa present

[oldblue]

medyo matindi ang talakayan ng perfect spaceship dito ah

the only thing I can contribute eh bakit di na lang lagyan ng engine ang earth at eto na lang imaneho natin. in that way, walang maiiwan, lahat tayo mag-travel sa universe

yan lang ang natutunan ko sa Empire eh, spaceship planet

[Lucius]

Kung kaylangan ng volunteers, kahit ako lang from here ok lang sakin. Basta the rest of the crew mga lucy torres clones

Sana maabutan natin ung era na ala Equlibrium na hehehehe pangit ung time like dun sa Reign of Fire. Parang US depression era na dinagdagan ng dragons

[ghosthunter]

once we succeed in our project to refit the Yamato into a super-space battleship, then we will be ready for a space exploration mission

based on my projections, the Yamato hull will only be good for interplanetary travel. For inter-stellar travel, you will need something much more bigger.

[ghosthunter]

medyo matindi ang talakayan ng perfect spaceship dito ah

the only thing I can contribute eh bakit di na lang lagyan ng engine ang earth at eto na lang imaneho natin. in that way, walang maiiwan, lahat tayo mag-travel sa universe

yan lang ang natutunan ko sa Empire eh, spaceship planet

di pwede... no sun = no life on planet earth.

[niky]

Moving planets?

Let's see.

What we'll need...

Superconducting solar-powered magnets... (maybe dismantle Mercury, Venus and Mars for the materials)

A whole bunch of small black holes.

A few centuries to "nudge" the sun out of its galactic orbit, by using gigantic magnetifc fields and gravitic effects from the black holes to funnel solar energy out to one side, like a giant rocket.

Voila! We have a mobile solar system!

We'll need to juggle the movement finely, so that the orbits of the (remaining) planets don't go out of whack and that the solar rocket doesn't accidentally hit jupiter and send it careening through the solar system like a gigantic planet-gobbling comet.

------

The problem with a Fusion powered spacecraft is the amount of fuel it has to carry is still prohibitive. It's better to do it ram-style, with a huge magnetic scoop picking up stray hydrogen between stars... but it would take a very huge scoop (tens or hundreds of kilometers) to power a colony sized spacecraft.

I'm still waiting for a quantum-fluctuation drive. One that makes power from quantum particles that are spontaneously generated out of vacuum. Every nanosecond, there are tons of quantum particles generated in empty space... but they last for a tiny fraction of a second, as their anti-particles are generated at the same time, and they cancel each other out. If we can figure out how to separate particle and anti-particle before they cancel, we have potentially limitless power at our fingertips. No more hunger, no more want, and we'll have spaceships that can reach the stars.

Of course... so far, it looks like an impossible task...

[mbeige]

based on my projections, the Yamato hull will only be good for interplanetary travel. For inter-stellar travel, you will need something much more bigger.

Check this out:

http://www.merzo.net/

The Super Star Destroyer (Star Wars) is 19.0km long! Another one, the Island Three space colony is 32km wide! And you thought that the Super Star Destroyer was huge! Finally, check out the "big" tab!

[VtEC]

the only thing I can contribute eh bakit di na lang lagyan ng engine ang earth at eto na lang imaneho natin. in that way, walang maiiwan, lahat tayo mag-travel sa universe

yan lang ang natutunan ko sa Empire eh, spaceship planet

ok yan.para sama sama.alangan namang kano lang makaalis