Lisa Kaltenegger is the Director of the Carl Sagan Institute at Cornell, and she reckons we are only years away from answering one of humanity’s greatest questions – are we alone in the universe?
The Pale Blue Dot Carl Sagan is a deceased astronaut astronomer. And that miniscule blue dot inside the blue circle is Earth. He is one of the few people to have ever existed who could claim to have pondered global events with a truly broad perspective. When you’ve considered the earth from 6,1 billion miles […]