NASA has discovered the birth of Earth’s ocean. The question of where the ocean came from on Earth is one of many cosmic and nature’s secrets. 

NASA’s Ocean Worlds page discusses water in the solar system and beyond. It states that most asteroids orbit the Sun between the planets Mars and Jupiter, but many swing nearer to Earth and even cross our orbit

Approximately 4.5 billions year ago , earth formed , initially too hot to have a ocean , as indicated by nasa research

NASA comet clue

NASA suggests , comets primarily made of water ice , may have delivered water to earth , asteroids contain some water , and they must have contributed too

NASA delves into the origin of earth water , looking at the comets of Kuiper Belt and the Oort Cloud region , comets from either region sometimes go off course , when they do , they landed in the inner solar system near earth

NASA accidental gift

Comet Hartley 2 , water composition matching earth oceans, offers tempting insights into the source of earth precious water

Yes, there are vast quantities of water in the Oort cloud. The Oort cloud is a distant spherical shell of small icy bodies surrounding the entire solar system. Most comets spend most of their time in the Oort cloud, which is 10,000 times further from the Sun than the Earth. 

The Oort cloud is filled with frozen fragments of water, ammonia, and methane. The fragments are fairly insubstantial individually, but together they could add up to several times the mass of the Earth. 

When comets come close to the Sun, they vaporize, creating comas made up of dust, ice grains, and water. Observations indicate that comets may have brought water to Earth. 

The inner edge of the Oort cloud is likely between 2,000 and 5,000 astronomical units (AU) from the sun. One AU is the average distance between Earth and the sun: about 93 million miles (150 million kilometers

If analyses of comets are representative of the whole, the vast majority of Oort-cloud objects consist of ices such as water, methane, ethane, carbon monoxide and hydrogen cyanide

Does the Kuiper Belt have water?

Kuiper belt is primarily characterizes comparatively small bodies and remnants from the Solar System, composed largely of frozen volatile matter, such as methane, ammonia, and water (ice). The belt is home to dwarf planets Pluto, Haumea, and Makemake.

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