1
vote
2answers
10 views
Space Balloon to the edge of space
I would really like to do something like this and be able to send a Balloon into space with a video camera attached to it. I know this is not very expensive, and was wondering if t …
0
votes
0answers
8 views
Would there be G-forces on a person if the person was floating in water
With relation to my previos question (see http://payload42.com/questions/61/speed-needed-to-reach-iss) where I suggest using "artillery" to shoot a person into space, I was wonderi …
1
vote
2answers
11 views
Liquids in hard vacuum.
Are there any liquids that can exist in hard vacuum, Or does the lack of pressure make all fluids go gaseous?
1
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1answer
23 views
Shuttle Crew Operations Manual (SCOM) ?
Where can I get the famous Shuttle Crew Operations Manual? It is about 40mb/1100++pages manual for the Space Shuttle. I have tried to google it but cannot find any thing like that. …
1
vote
1answer
2 views
When will we definitively know whether there is life on Mars?
We can measure water, methane, etc. but the outcome is always ambiguous. It might be biological, it might be geological, it might be something else. At what point will we know wi …
1
vote
1answer
13 views
Will An Object Exiting The Earth’s Atmosphere Experience The Same Thermal Variances/Friction As An Object Re-Entering?
Will An Object Exiting The Earth's Atmosphere Experience The Same Thermal Variances/Friction As An Object Re-Entering?
I know that with re-entry, there is very high friction actin …
1
vote
1answer
13 views
Speed needed to reach ISS
If one were to shoot a projectile from a high mountain. What speed would be needed in order to reach height of the ISS? I would know how to calculate this, when not counting in fri …
3
votes
3answers
10 views
What significant advances in rocketry have been made in the past 40 years?
As we approach the first flight test of the Ares I-X -- a rocket that is, in effect, a space shuttle SRB with a large dummy load -- I wonder how much progress we've made since the …
1
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2answers
1 views
What are the essential space museum sites in America to visit?
Feel free to sugges sites that are obvious as well as ones that are not.
2
votes
2answers
11 views
Building my first telescope. Mirror size recommendations?
Howdy,
I'm a soon-to-be amateur telescope maker, and I'd like some advice on mirror sizing.
I'm planning a pretty standard Newtonian reflector on a Dobsonian mount. Truss tubes, …
1
vote
1answer
4 views
So, what IS this spiral over Norway?
Most likely a hoax I guess... Seems to me to look projected.
Lot's of people coming up with wacky ideas like stray ICBMs and unusual northerns lights, but doesn't sound plausible …
1
vote
0answers
6 views
What is the difference between Space Physics and Astrophysics?
What is the difference between Space Physics and Astrophysics?
2
votes
2answers
14 views
What are the key points of the Obama Administration’s space policy?
How much overall support are they giving space exploration and space science (including Earth observations from space), and how is that support divvied up? Where does Department of …
2
votes
2answers
13 views
How is asteroid impact probability calculated?
Do we know enough about the number of space rocks and comets out there to be able to say with confidence there is X% chance of, say, a 1km diameter asteroid hitting us in the next …
1
vote
1answer
5 views
How many more launches do we have of the amazing beast that is the Space Shuttle?
Paul N's topic (which really ought to be a question, right?) made me wonder: How many more launches are there, and what are their missions? Have they been specified yet? It's a rea …
