September 11th, 2015 Live Astronomy Q&A Session with Prof. Chris Impey

Описание: Join Professor Chris Impey from Steward Observatory at The University of Arizona for a live question and answer session! Professor Impey will take all of your questions, from comets to cosmology.

Questions format- Time answer begins--Question

0:28--If dark matter doesn't emit, transmit, absorb or reflect light then is it even matter?
3:29--Can you elaborate on wormholes?
6:18--What is the role of neutrons in the nucleus, because it has no charge? Why do only proton and electrons make an atom stable? why neutrons are required?
8:53--Why do planets revolve in an elliptical path?
10:54--How does one become an astronomer?
14:35--How does dark matter interact with light?
17:30--What phenomena cannot, at present, be explained by the present state of Physics?
21:15--Is Deuterium necessary for Helium fusion from Hydrogen?
23:55--Is there a maximum temperature achievable , or is it infinite or we have we simply not the tools to measure this?
27:15--How do we determine the distances and locations of planets?
30:48--Which universities are good for masters in astronomy and astrophysics in U.S.?
32:20--What period of time does the material covered in the course cover?
33:57--When scientists are using particle accelerators can they damage the core of the Earth?
36:25--Could you tell us briefly the role of plasma in the universe?
41:46--Where do you think we are going in our study of Pluto, in light of the new information about it?
43:34--Why is the observable universe is in a shape of a light cone not a sphere?