宇宙問題, 緊急~20分

1, If you discover a new star, what do you have to consider when naming it?
ANSWER: find out where is the new star located at?
how far it is from the earth?
How large it is?

is it possible to determine how old it is?how?
ANSWER: Yes. By using machine to determine the surface things (e.g. soil, ice ,etc)
that getting from the new star.

what else do you need to consider?
ANSWER: consider how big it is,what is its characteristic

2, Is space travel dangerous? present information to support your answer.
ANSWER: Yes. the surface of the roket is so hot and if the surface of the rocket can't resistant high temperature, then the rocket may be broken down because the wear and tear of the structure.

3, If you had access to all resources, what features would your space craft hav in order to make returing to earth much easier and safer? make a detailed list and justify your choices.
I DON'T HAVE ANY IDEA ABOUT QUESTION 3