Pluto New Horizons satellite flyby
- Thread starter .S&C.
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Good thread. I consider Pluto and Charon double dwarf planets rather than a primary/satellite system. And if you think hard about it, you can make the argument that Earth and the Moon are double planets as well. Right now the center of gravity between the Earth and Moon is still within the Earth. But in a few million years from now, it won't be.
Exploration is part of humanity's DNA. I am convinced there is 'life' outside of Earth, and I hope to live long enough to see proof of such. Sure we can spend the money spent on space exploration to improve the lot of folks on Earth. But the poor will ALWAYS be among us. Even Jesus Christ Himself said so (you can look it up).
Exploration is part of humanity's DNA. I am convinced there is 'life' outside of Earth, and I hope to live long enough to see proof of such. Sure we can spend the money spent on space exploration to improve the lot of folks on Earth. But the poor will ALWAYS be among us. Even Jesus Christ Himself said so (you can look it up).
Depends on your definition of "poor". If we make it long enough for science to progress without destroying ourselves, there will be no more poor. All these anti-science, religious fanatics don't help either.
And I don't know why you quote Jesus about it. If we followed his direction, we'd all be scavenging the fields for berries and worms and healing the sick by casting out demons.
Yeah. We just sat in our own piss and **** all of these years, and here we are.
I have always been a big fan of space movies and wanted to be an astronaut when I was a kid. I am all for space exploration and hope that space travel becomes economical so the average person can go into space. That would be my biggest bucket list item that I want to do before I die.
Here is a question? If you could be a part of space exploration, but there is no guarantee you would ever come back to Earth, would you do it? You can bring 1 person with you (wife/girlfriend) if you go. I would do it in a heartbeat. Just have to wait until both of my kids are grown and out on their own.
Here is a question? If you could be a part of space exploration, but there is no guarantee you would ever come back to Earth, would you do it? You can bring 1 person with you (wife/girlfriend) if you go. I would do it in a heartbeat. Just have to wait until both of my kids are grown and out on their own.
Lol... I've never met somebody who hated God more than him. Ida, were you born with big ears that stick straight out or something?
Dilithium crystals are 60's technology. Will probably be some form of chemical reaction involving a mentos/diet coke reaction.
Mars has no magnetic field, so the solar wind would sweep away any atmosphere that we create from pumping out greenhouse gases.
i don't think that's true. what keeps mars from having an amosphere more similar to earth is less gravity and no volcanic activity.
school as in high school? my degree is in physics, though not a physicist by no means thats hard little reward. "solar wind" is just solar radiation, the magnetic field deflects only the more harmful charged particles, not some force that's blowing stuff off.
though as i look there is ofcourse a pressure associated, but i don't think it's nearly enough to "blow" off a created mars atmosphere, though could be wrong.
though as i look there is ofcourse a pressure associated, but i don't think it's nearly enough to "blow" off a created mars atmosphere, though could be wrong.
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College biochemistry course. Lecture series at the beginning of the course was about abiogenesis, etc and included "criteria for life as we know it".
there the problem is that charged particles "solar wind" is ionizing radiation and would make life biologically impossible. like if we lost our magnetic field suddenly it would be worse than being in a nuclear fallout and we'd all get cancer (much worse really, but simplicity sake for others reading maybe)
You're incorrect. Mars does not have a magnetosphere and the solar wind would strip away any atmosphere on Mars. The solar wind is just ionized particles and not the kind of wind we think of, on earth. It is the reason that Mars currently has no atmosphere. Gravity has nothing to do with it.
Mars probably had an atmosphere in the distant past. The "heat engine" in the core of Mars stopped long ago, causing the collapse of any magnetosphere Mars may have had.
Here is an excerpt from space.com.
The young Mars had active volcanoes, which spewed lava across its surface, and water and carbon dioxide into the atmosphere. But there is no tectonic activity on Mars, so the volcanoes remained stationary and grew with each new eruption.
The volcanic activity also probably gave Mars a thicker atmosphere. Mars' magnetic field protected the planet from radiation and solar wind. With a higher atmospheric pressure, water probably flowed on Mars' surface, studies
indicate. But about 3.5 billion years ago, Mars began to cool. Volcanoes erupted less and less and the magnetic field disappeared. The unprotected atmosphere was blown away by solar wind and the surface was bombarded by radiation.Your quote actually supports my reasoning not contradicts it. Without volcanic activity or anything else to replenish the atmosphere of mars, the atmosphere would "evaporate" anyway due to root mean square escape velocity of the remaining gas with respect to the strength of the gravitational field. Even if there was a magnetic field. Without it, the solar wind would just accelerate this process by adding more energy to the remaining gas.
My contention is that it is not enough energy to preclude creating a more viable martian atmosphere, which may or may not actually be the case.
My contention is that it is not enough energy to preclude creating a more viable martian atmosphere, which may or may not actually be the case.