Carl Sagan

(Newser) - The touchdown on Mars of another NASA rover has generated lots of excitement about the red planet. But scientific exploration is one thing. Believing that humans might be able to live on the planet someday is another, writes Shannon Stirone at the Atlantic . She calls out those pushing the idea...

(Newser) - About 25 years ago, astronomer Carl Sagan and his team noticed something a little odd about images coming back from the Galileo spacecraft: They showed glints of light seemingly coming from Earth. Now, a NASA study appears to have cracked the source of the mystery: floating ice crystals. In a...

(Newser) - Tonight sees the reboot on Fox of what the New York Times calls "arguably the most successful popularization of science since Albert Einstein roamed Princeton without his socks": the miniseries Cosmos, originally hosted on PBS in 1980 by Carl Sagan. Now, Neil deGrasse Tyson leads us on a tour...