why are the noses of rocket, shuttles, planes, missile(…) half spheres instead of spikes?

Question

why are the noses of rocket, shuttles, planes, missile(…) half spheres instead of spikes?

In: 5557

Answer 1

For an e-like-I-work-for-nasa explanation nasa has a [free book](https://www.nasa.gov/connect/ebooks/coming_home_detail.html) published that details how they landed at the rounded shape, plus lots of material engineering challenges for figuring out how to make a spacecraft capable of surviving many reentries