Astrophysicist Neil deGrasse Tyson and SpaceX CEO Elon Musk have made scathing comments about each other online.

In 2006, the International Astronomical Union (IAU) decided that a large celestial object is a planet only if its ... In 2009, Neil deGrasse Tyson stated that other celestial bodies of ice ...

For one reason or another, some people are still upset about Pluto's demotion from planet to dwarf planet ... So, what does famed astrophysicist Neil deGrasse Tyson have to say to these people?

Using the Age of Exploration as a basis, Neil deGrasse Tyson takes a close look at what ... So, either we need another planet to live on — terraform Mars and go live there — or we have to ...

Neil deGrasse Tyson ... structure of our Milky Way. Tyson has authored nine books, including his latest, The Pluto Files: The Rise and Fall of America's Favorite Planet, chronicling his experience ...

Um, Actually Famed astrophysicist and science fiction pedant Neil deGrasse Tyson doesn't think very highly of multi-hyphenate ...