Science news articles about 'astronomer carl sagan'

... a "pale blue dot," the term coined by the late astronomer Carl Sagan to describe how Earth appeared in a 1990 photograph taken by the Voyager spacecraft from near the edge of ...

... to fill in the British government's scorecard on tackling climate change. The astronomer Carl Sagan was a prolific scientist, pioneering the study of exobiology and astrochemistry and promoting the ...

... effort to send them a message. In 1974, the astronomers Carl Sagan and Frank Drake, both working at Cornell University at the time, used the world’s biggest and most powerful radiotelescope to ...