What scientific field do Seth Shostak and Alexandra Barnett work in?
they are astronomers
What do they believe about intelligent life existing on other planets?
They believe intelligent life exists somewhere in the universe
What galaxy do we live in?
the Milk Way
How many stars does it have?
100 billion stars
What type of tool allows us to see other planets?
powerful telescopes
What famous one is mentioned?
the Hubble telescope
Does Shostak believe beings from space have already visited Earth?
no
Did Barnett express an opinion on that topic?
no
What is one way that we may be contacted?
radio signs
Does Shostak believe beings from space will visit Earth soon?
no
Does Shostak believe beings from space could make contact with Earth soon?
yes