News tagged with carl sagan

Measuring the value of science

Reports about the worthy contributions of science to national economies pop up regularly all around the world – from the UK to the US and even the developing world. ...

dateApr 16, 2015 in Social Sciences
shares10 comments 0

Enrico Fermi and extraterrestrial intelligence

It's become a kind of legend, like Newton and the apple or George Washington and the cherry tree. One day in 1950, the great physicist Enrico Fermi sat down to lunch with colleagues at the Fuller Lodge at ...

dateApr 08, 2015 in Astronomy
shares105 comments 16

'Pale blue dot' images turn 25

Valentine's Day is special for NASA's Voyager mission. It was on Feb. 14, 1990, that the Voyager 1 spacecraft looked back at our solar system and snapped the first-ever pictures of the planets from its perch ...

dateFeb 16, 2015 in Space Exploration
shares79 comments 0

Explainer: How does our sun shine?

What makes our sun shine has been a mystery for most of human history. Given our sun is a star and stars are suns, explaining the source of the sun's energy would help us understand why stars shine. ...

dateAug 28, 2014 in General Physics
shares0 comments 3

Silence in the sky—but why?

(Phys.org) —Scientists as eminent as Stephen Hawking and Carl Sagan have long believed that humans will one day colonise the universe. But how easy would it be, why would we want to, and why haven't we ...

dateAug 26, 2013 in Astronomy
shares0 comments 213

Glorious Dawn: Sagan, Hawking Sing (w/ Video)

Astronomer and long time science advocate Carl Sagan once said that he was "not very good at singing songs." But on Nov. 9 in Washington D.C., his voice could be heard singing about the wonders of universe -- 13 years after ...

dateNov 12, 2009 in Other
shares0 comments 8
  • 1