Approaching asteroid? Is this THE one?
VPE Looking at the question and subsequent comment, there is sufficient latitude in length of journey and distance of planet to make the speed of travel a minor factor.
Sure answers the oddity of gravity instant communication and wave speed.VPE Looking at the question and subsequent comment, there is sufficient latitude in length of journey and distance of planet to make the speed of travel a minor factor.
I think the trick to traveling at whatever speed you like is to travel in that region of space between quanta orbits.VPE "Now for the minor problem of making empty/nothing large enough to do something useful with."
Not sure what you mean. There are plenty of planets to be found given the wide travel parameters. Don't forget this is set in the future.
One useful resolution for this is the halo drive proposed by Dr. Kipping where a laser is fired at the right distance around a black hole (close enough to the photon sphere for the laser to partially orbit around the black hole and return to the ship that fired it allowing its light to be reabsorbed) to accelerate or decelerate a spacecraft using the angular momentum of the black hole as a sink or reservoir of energy. The first catch is that to use a black hole to accelerate it needs to have angular momentum to spare but since angular momentum is conserved any black hole formed from a collapsed star this is unlikely to be a problem. The second is a bit more tricky as you need to have a black hole at your destination with a known mass and spin. Acceleration is done by firing the laser prograde to the blackholes spin whereas deceleration is done by firing the laser retrograde. Third catch is you better aim true since if you screw up its a one way trip into the black holeHelio:
"An incredible amount of energy is needed to achieve higher speeds "
What is often forgotten is not the energy to get up to speed
but the energy to slow down again!
I guess we will just have a teleporter and it will create a small black hole, we will wear a suit which will let us pass through it with no harm to ourselves, we will state where we want to go, it will do some maths that and will make the blackhole as powerful as it would take to take us to there, and we will reach there. Now, this is purely sci-fi. I'd like to request you to pardon my imagination, please.IG Good point, except that if we are about to discover it, who put the teleport there or how would we know that there was one there?
No problem.I guess we will just have a teleporter and it will create a small black hole, we will wear a suit which will let us pass through it with no harm to ourselves, we will state where we want to go, it will do some maths that and will make the blackhole as powerful as it would take to take us to there, and we will reach there. Now, this is purely sci-fi. I'd like to request you to pardon my imagination, please.
I’m a writer and currently writing a book that involves space travel to a potentially habitable planet. I’ve done lots of research of potentially habitable planets that we are already aware of and I am aware that scientists believe there to be billions of planets in the Milky Way alone.
What I’m curious about is how likely it would be to find one or more of these potentially habitable planets in proximity closer to the ones we have already found?
Is it possible that scientists haven’t discovered everything near us? Or would I have to be setting my book somewhere much further afield?
I essentially want to create a planet so as to not get too deep into technical issues of impossibilities with already known existing planets.
And yes I am aware that we can’t reach those planets as of now, but I’m setting the book in the future and will invent technology advances to accommodate this issue.
Hope to hear from someone who might have an answer for me.
Helio, do you have a figure for how many within 5-10 light years, or anything relating to 'close'? CatI read that TESS should have perhaps around 10,000 exoplanet candidates within the next few years. This should give us a lot of information to improve our guess as to what percent of all planets for a given type of star might have planets that are in habitable zones. This usually means liquid water - so not too hot or too cold.
But we think of habitable as having enough oxygen to breath, which strongly suggests life forms producing oxygen. It's only a guess if any of the 10k or 15k exoplanets found will qualify. But it's all happening in our life time, so stay tuned!
I must give you, and some to Rod, credit in pushing me past TDC in writing a VBA Excel program to generate exoplanet counts by incremental distances. [I finally elected to learn to write code in Excel to help inventory stocking.] Here is the result:Helio, do you have a figure for how many within 5-10 light years, or anything relating to 'close'? Cat
The MW doesn’t have 40 billion Sun-like stars, and the odds are against them having Earth-like planets. What is your source?I wanna add something more. I`ve recently found ( a few hours ago ). According to Kepler Data, there are about 40 billion Earth-like planets orbiting Sun-like stars, with similar sizes to our own, just in the Milky Way.
Then consider there are hundreds of billions to trillions of galaxies. Judging by this statement intelligent life can really exist somewhere