Exploring how we've underestimated Earth's heat storage

The increase in anthropogenic greenhouse gases in the atmosphere prevents the emission of heat into space. As a result, the Earth constantly absorbs more heat through solar radiation than it can give back off through thermal ...

Researchers solve colorful Kuiper Belt puzzle

The Kuiper Belt is a massive disk of icy bodies, including Pluto, that is located just outside of Neptune's orbit in our solar system. Objects observed in the Kuiper Belt exhibit a more diversified color range than any other ...

Capturing non-transparent ultrafast scenes

A research team at the Institut national de la recherche scientifique (INRS) led by Professor Roberto Morandotti reported the first realization of a single-shot ultrafast terahertz (THz) photography system. This important ...

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Radiation

In physics, radiation describes any process in which energy emitted by one body travels through a medium or through space, ultimately to be absorbed by another body. Non-physicists often associate the word with ionizing radiation (e.g., as occurring in nuclear weapons, nuclear reactors, and radioactive substances), but it can also refer to electromagnetic radiation (i.e., radio waves, infrared light, visible light, ultraviolet light, and X-rays) which can also be ionizing radiation, to acoustic radiation, or to other more obscure processes. What makes it radiation is that the energy radiates (i.e., it travels outward in straight lines in all directions) from the source. This geometry naturally leads to a system of measurements and physical units that are equally applicable to all types of radiation.

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