(Inside Science) -- The troposphere, the bottom layer of Earth's atmosphere, contains most of the atmosphere's mass and clouds and is where most weather occurs. It stretches between Earth's surface ...

For 75 years, scientists have been trying to devise a way to make a vast supply of radioactive and chemically dangerous waste at the Hanford Nuclear Reservation safe. (Inside Science) -- Nearly 30 ...

Some countries will gain farmland while other countries will lose it.

Atomic and Molecular Physics Atomic and Molecular Physics ...

Fireworks are so advanced they turn into shapes like hearts, stars and even smiley faces. But have you ever wondered how they do that?

Dilemma zone - The zone before an intersection where a driver decides whether to drive through or stop based on seeing a yellow traffic light. Reaction time - The time from the presence of a stimulus ...

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A hospital for rehab, research and release of one of Earth’s oldest living animals.

Retina - the back wall of the eye made up of light-sensitive cone cells that convert light into electrical signals. Macular Degeneration - a condition in which the retina is damaged causing vision ...

Infrared detector - A sensor that measures infrared radiation, an invisible form of electromagnetic radiation just beyond visible light that is often felt as heat. Atmospheric temperature profile - A ...

Gamma-ray - a high-energy electromagnetic wave, which can be released by atoms undergoing radioactive decays. Spectrometer - an instrument that can measure the range of energies in gamma rays released ...

Polynesians beat 18th-century innovation by hundreds of years.