it will cost £500,000 because i have bought one;)
an astronaut.
To breath oxygen.
An astronaut's helmet is called a space helmet or spacesuit helmet. It is a crucial component of an astronaut's spacesuit as it provides oxygen and protection in the vacuum of space.
it costs about 200 dollars
The rose bowl helmet alone is worth 800.dollars a peace!
Molybdenum
if your gonna make your own helmet...it will probably cost you your life
NASSS
If there is no helmet law in your state, the cost of motorcycle insurance is the same whether you wear a helmet or not.
Prices are from around 40 bucks, to a couple of hunderd dollars.
$100 see ebay
Yes, albeit a very very expensive one.