Astronomers have detected a mysterious object in our galaxy that emits intense bursts of radio waves and X-rays with remarkable regularity, every 44 minutes. The signals, coming from a source called ...

November 24, 2025 • Our annual reading guide returns with 380+ new titles handpicked by NPR staff and trusted critics. Find 13 years of recommendations all in one place — that's more than 4,000 great ...

Krupnik, Igor. 2006. "We have seen these warm weathers before. Indigenous observations, archaeology, and the modelling of Arctic climate change." PNM, Publications from the National Museum, Studies in ...

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Neuroscience examines the structure and function of the human brain and nervous system. Neuroscientists use cellular and molecular biology, anatomy and physiology, human behavior and cognition, and ...

Wax is made of carbon and hydrogen atoms bonded together in long chains. The chains are tangled, intertwined, and packed together to make the wax. Water molecules are packed more closely together than ...

Casey Murphy has fanned his passion for finance through years of writing about active trading, technical analysis, market commentary, exchange-traded funds (ETFs), commodities, futures, options, and ...