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An ice planet's surface can be composed of water, methane, ammonia, carbon dioxide (known as "dry ice"), carbon monoxide, nitrogen, and other volatiles, depending on its surface temperature. Ice planets would have surface temperatures below 260 K (−13 °C) if composed primarily of water , below 180 K (−93 °C) if primarily composed of CO 2 ...
These are lists of planets.A planet is a large, rounded astronomical body that is neither a star nor its remnant. The best available theory of planet formation is the nebular hypothesis, which posits that an interstellar cloud collapses out of a nebula to create a young protostar orbited by a protoplanetary disk.
A polar ice cap or polar cap is a high-latitude region of a planet, dwarf planet, or natural satellite that is covered in ice. [ 1 ] There are no requirements with respect to size or composition for a body of ice to be termed a polar ice cap, nor any geological requirement for it to be over land, but only that it must be a body of solid phase ...
Last Glacial Maximum, what is often meant in popular usage by "Last Ice Age" 16,000–13,000: Oldest Dryas cold, begins slowly and ends sharply (B-S) 12,700: Antarctic Cold Reversal warmer Antarctic, sea level rise: 12,400: Bølling oscillation warm and wet in the North Atlantic, begins the Bølling-Allerød period (B-S) 12,400–11,500 (much ...
Stargazers will be treated to a rare treat this month when six planets will "align" in the night sky for an eye-catching planet parade.. Planets always appear along a line known as the ecliptic ...
Last year was the planet’s hottest in recorded history, NASA announced, marking two years in a row that global temperatures have shattered records. ... Earth was about 2.65 degrees Fahrenheit (1 ...
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All are included on the current List of IAU-approved Star Names. [8] The star nearest to Earth is typically referred to simply as "the Sun" or its equivalent in the language being used (for instance, if two astronomers were speaking French, they would call it le Soleil). However, it is usually called by its Latin name, Sol, in science fiction.