Dramatic video shows plane moments before it crashed into Oregon home, killing 22-year-old instructor and 20-year-old student pilot

This Crazy Steam-Powered Probe Could Pretty Much Explore Space ForeverNASA Photo Shows The Wreck of a 'Flying Saucer', But The Real Story Is Even Better

Astronomers Just Discovered Strange Patterns in The Clouds of VenusAstronomers Are Closing in on The Source of a Mysterious Explosion Called 'The Cow'Physicist Says One of Sci-Fi's Wildest Hyperspace Travel Ideas Could Actually Work

Our Sun Will Become a Solid Crystal as It Dies, Joining Billions of Others Out ThereThe Chinese Moon Rover Could Be Searching For Interplanetary Fuel

Mysterious Repeating Signals Have Been Detected Coming From Space For The Second Time

Astronomers Discover a Rare Exoplanet 2x The Size of Earth That May Host Liquid WaterBook excerpt: "The Sentence" by Louise Erdrich

Book excerpt: "The Island of Missing Trees" by Elif ShafakBook excerpt: "Apparently There Were Complaints" by Sharon Gless

Stephen Sondheim, musical theater legend, has died at 91