There are humans in New Jersey?New Jersey—approximately Passaic.
That’s as far as we can get, I didn’t say we made it there yet.There are humans in New Jersey?
Why do you stay and contaminate Earth?I think the universe has be nicely designed so that we cannot likely expand beyond our solar system to contaminate the rest of it.
It's not easy but a Solar capable craft is only a mild leap of science fiction IMO, not impossible but improbable in the short term..Solar System at most. The nearest star being over 4 light years away, not going to happen! First of all there is no propulsion system that can provide the necessary velocities required to even get close to that speed. Consider that any propulsion system has to eject huge amounts of matter in the opposite direction to accelerate the ship forward. The amount of fuel is astronomical and as you add more and more fuel the acceleration goes down and efficiency goes out the window. Even if you could reach such speeds, there is the problem of interstellar gas and dust. Even the smallest amount of matter in the way will either burn up the ship or cause significant damage and that at rather slow speeds like 1/10 of c. And don't forget relativity is going to have, being that from your perspective the distance to the next star say will look like 1/10 the distance at a sufficient speed, well any high energy EM wave will shorten in wavelength considerably from your perspective thus increasing the energy to possibly high energy gamma ray equivalent. Now you have to protect the ship from that as well! We now know that our sun protects us from the interstellar radiation for our solar system. Once you leave our system there is hostile gamma rays, etc. So solar system at most, but why would you want to venture out into the solar system with humans? Robots can examine it with much better results using AI for scientific research. All the other planets within our solar system are extremely hostile environments. Venus is raining down sulfuric acid at 400F. Mars has practically no atmosphere and extreme temperature changes between night and day and no 'usable' water for the most part. No matter where you go you need a space suit just to protect yourself from the harsh environments. I am not trying to be pessimistic but just realistic. The science fiction films love to make it look easy, when it is anything but easy.
There should be an "agree" button in addition to "like" (I have many times "liked" posts I've disagreed with).Solar System at most. The nearest star being over 4 light years away, not going to happen! First of all there is no propulsion system that can provide the necessary velocities required to even get close to that speed. Consider that any propulsion system has to eject huge amounts of matter in the opposite direction to accelerate the ship forward. The amount of fuel is astronomical and as you add more and more fuel the acceleration goes down and efficiency goes out the window. Even if you could reach such speeds, there is the problem of interstellar gas and dust. Even the smallest amount of matter in the way will either burn up the ship or cause significant damage and that at rather slow speeds like 1/10 of c. And don't forget relativity is going to have, being that from your perspective the distance to the next star say will look like 1/10 the distance at a sufficient speed, well any high energy EM wave will shorten in wavelength considerably from your perspective thus increasing the energy to possibly high energy gamma ray equivalent. Now you have to protect the ship from that as well! We now know that our sun protects us from the interstellar radiation for our solar system. Once you leave our system there is hostile gamma rays, etc. So solar system at most, but why would you want to venture out into the solar system with humans? Robots can examine it with much better results using AI for scientific research. All the other planets within our solar system are extremely hostile environments. Venus is raining down sulfuric acid at 400F. Mars has practically no atmosphere and extreme temperature changes between night and day and no 'usable' water for the most part. No matter where you go you need a space suit just to protect yourself from the harsh environments. I am not trying to be pessimistic but just realistic. The science fiction films love to make it look easy, when it is anything but easy.
If only!Yes, radiation is a problem but there are passive/active countermeasures possible if we develop fusion power scale engines using high-temperature superconductors.
https://digitalcommons.library.tmc.edu/cgi/viewcontent.cgi?article=2070&context=utgsbs_dissertations
https://www.nasa.gov/sites/default/...radiationprotectionandarchitecture_tagged.pdf
I totally disagree. There's plenty of danger ahead but space exploration is worth it.If only!
I know you need not be told how many "ifs" there are.
I fantasize about space travel as much as anyone.
But there is no there there.
The company had been hoping for a softer vertical landing so that the Falcon 9 booster could be refurbished and reused, a strategy that Musk has said could reduce launch costs “by as much as a factor of a hundred.” Despite such landings being a longtime staple of science fiction, to date no rocket has ever managed the feat. SpaceX's previous attempt, in January of this year, also ended in a Falcon 9 booster crashing into its barge.
Yup.Remember this?
That's what makes it so exiting to me. For our solar system, we have difficult, hard steps to it but not a wall blocking it.Yup.
Those are prenatal zygote steps compared to human deep space travel.
The Federation, of course!That's what makes it so exiting to me. For our solar system, we have difficult, hard steps to it but not a wall blocking it.
The long term problem is not colonizing Other Planets. It's Who Should Be in Charge?
by Jake Hertz
by Duane Benson
by Aaron Carman
by Don Wilcher