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Unless you confront your theory with what's actually out there in the Universe, you're playing in the sandbox, not engaging in science.
The Black, Caspian, and Aral Seas are the last surviving fragments of a body of water that stretched from Austria to Turkmenistan.
Democratic freedom, rapturous religion, and newspapers created a hotbed for social experimentation in 19th-century America.
JWST's revolutionary views arrive in high-resolution at infrared wavelengths. Without NASA's Spitzer first, it wouldn't have been possible.
Baby mice can regenerate damaged hair cells — and now that we know how they do it, maybe we can, too.
The Fermi paradox (along with the subsequent Drake equation) is so difficult that even brilliant thinkers can make little dent in it.
Intellectual humility demands that we examine our motivations for holding certain beliefs.
John Templeton Foundation
Dark energy is one of the biggest mysteries in all the Universe. Is there some way to avoid "having to live with it?"
Though ultimately incorrect, the ancient Greek philosophers blazed a conceptual trail for humankind to understand the nature of reality.