Splat or subsurface ocean? The mysterious pos...

Ninety years ago this Halloween, a group of Caltech graduate students hauled a small rocket motor into the Arroyo Seco near Pasadena and tried to fire it up. It didn’t go as planned, but that moment became the unofficial birthday of NASA’s Jet Propulsion Laboratory (JPL). Now, fo ...  Afficher plus

On the night of Oct. 5, 1923, Edwin Hubble spotted a variable star in Andromeda from Mt. Wilson Observatory above Pasadena, California, proving that our galaxy is just one of countless others in the Universe. Now, California Rep. Judy Chu, co-chair of the Planetary Science Caucus ...  Afficher plus

Will Neil take back what he said about Pluto? Neil deGrasse Tyson and comedian Chuck Nice explore planets, dwarf planets, and the Kuiper belt with planetary scientist and principal investigator for the New Horizons Mission, Alan Stern. 

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Pluto may not be a planet, but it definitely exists. Not every case is so clear. The history of near-Earth astronomy contains many cases of bodies that may or may not have ever existed in the solar system we call home. In this episode of Stuff to Blow Your Mind, Robert Lamb and J ...  Afficher plus

Pluto may not be a planet, but it definitely exists. Not every case is so clear. The history of near-Earth astronomy contains many cases of bodies that may or may not have ever existed in the solar system we call home. In this episode of Stuff to Blow Your Mind, Robert Lamb and J ...  Afficher plus