Did you know the famous astronomer campaigned for marijuana legalization? Read on for more little-known tidbits about Carl Sagan.

ASTRONOMY
You probably saw the headlines. Here's the inside look—and the big picture.
On September 15, scientists will intentionally crash the Cassini spacecraft into Saturn. Mental Floss will be there in mission control as it happens. Here are some essential facts about Saturn to get you ready for the big event.
If you’re lucky enough to witness this spectacular astronomical phenomenon, make sure you bring your eclipse glasses—and a thermometer.
The first raw images of the Earth-sized hurricane were released today. Thanks, NASA!
Days on the planet closest to the Sun may reach 800°F, but it also has water ice.
Did you know a Jovian year is 4333 Earth days long?
They’re probably the weirdest—and certainly the most puzzling—objects in the universe. Peer over the event horizon with us.
Constellations are temporary.
You can expect to see 10 meteors an hour tonight.
The Chicxulub crater is providing new clues about how life may have begun on Earth about 4 billion years ago—and point us towards how and where we can look for life across the universe.