Related topics: climate change · earth · nasa · carbon dioxide · atmosphere

SpaceX poised for third launch test of Starship megarocket

SpaceX plans on Thursday to attempt another launch of Starship, the world's most powerful rocket that is vital to NASA's plans for landing astronauts on the moon later this decade—and Elon Musk's hopes of eventually colonizing ...

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Ocean

An ocean (from Greek Ωκεανός, Okeanos (Oceanus)) is a major body of saline water, and a principal component of the hydrosphere. Approximately 71% of the Earth's surface (an area of some 361 million square kilometers) is covered by ocean, a continuous body of water that is customarily divided into several principal oceans and smaller seas. More than half of this area is over 3,000 meters (9,800 ft) deep. Average oceanic salinity is around 35 parts per thousand (ppt) (3.5%), and nearly all seawater has a salinity in the range of 30 to 38 ppt.

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