Cosmology Flashcards
1
Q
How do u calculate 1 light year?
A
3x10^8 x 365 x 24 x 60 x 60
2
Q
If a rocket engine is switched off for a short period of time in space what will happen to the probe/engine?
A
It will remain at a constant speed
3
Q
Difficulties with space travel
A
Money
Fuel
High radiation exposure
Pressure
