Bonjour, pouvez vous m'aider à répondre a ces questions svp c'est tres urgent !!
1/ how did hydrogen form ?
2/ how did oxygen form ?
3/ Why is there so much water on Earth ?
4/ What is the difference between the VLT ( very large telescope) and the future E-ELT ,
5/ Where are they located ?
6/ What do astrophysicists using the E-ELT hope to find?
7/ Explain why it is important for a country to have a leading -edge astronomical technology ?
8/ What can we learn by studying the sun's radio emission ?
9/ Can any the NRT instruments discover exoplanets ? Why ?