Has water on Earth come from asteroids? Astonishing study makes stunning revelation | Tech News

Has water on Earth come from asteroids? Astonishing study makes stunning revelation

A new study has revealed that water on Earth may have come from asteroids. Here’s more about it.

By: SHAURYA TOMER
| Updated on: Aug 17 2022, 13:33 IST
Asteroid fun facts in pics: NASA reveals all you need to know
Asteroid and Earth
1/5 Space is full of objects, out of which only a few have been discovered. Asteroids are some of these objects. If you are not aware about the dangerous objects called asteroids, here are some facts you should know. First, did you know that asteroids are sometimes called minor planets? Well, they are. (Pixabay)
Asteroid and Earth
2/5 Differences between an Asteroid, Comet, Meteoroid, Meteor and Meteorite: According to the information provided by NASA, Asteroid is a relatively small, inactive, rocky body orbiting the Sun. Comet is a relatively small, at times active, object whose ice can vaporize in sunlight forming an atmosphere (coma) of dust and gas and, sometimes, a tail of dust and/or gas. Meteoroid is a small particle from a comet or asteroid orbiting the Sun. Meteor is the light phenomena which results when a meteoroid enters the Earth's atmosphere and vaporizes, in short, a shooting star. While, Meteorite is a meteoroid that survives its passage through the Earth's atmosphere and lands upon the Earth's surface. (NASA)
Asteroid and Earth
3/5 Asteroid: Size, frequency and impact- More than 100 tons of dust and sand sized particles are bombarded towards Earth everyday, according to NASA. While, about once a year, an automobile-sized asteroid hits Earth's atmosphere, creates an impressive fireball, and burns up before reaching the surface. Every 2,000 years or so, a meteoroid the size of a football field hits Earth and causes significant damage to the area. Only once every few million years, an object large enough to threaten Earth's civilization comes along. Impact craters on Earth, the moon and other planetary bodies are evidence of these occurrences. Space rocks smaller than about 25 meters (about 82 feet) will most likely burn up as they enter the Earth's atmosphere and cause little or no damage. By comparison, asteroids that populate the main asteroid belt between Mars and Jupiter, and pose no threat to Earth, can be as big as 940 kilometers (about 583 miles) across. (NASA)
Asteroid and Earth
4/5 How is an Asteroid Orbit Calculated? An asteroid's orbit is computed by finding the elliptical path about the sun that best fits the available observations of the object. That is, the object's computed path about the sun is adjusted until the predictions of where the asteroid should have appeared in the sky at several observed times match the positions where the object was actually observed to be at those same times. (Pixabay)
Asteroid and Earth
5/5 What is NASA doing to find and learn more about potentially hazardous asteroids and comets? NASA has established a Planetary Defense Coordination Office (PDCO), managed in the Planetary Science Division at NASA Headquarters in Washington, D.C. The PDCO ensures the early detection of potentially hazardous objects (PHOs) - asteroids and comets whose orbits are predicted to bring them within 0.05 Astronomical Units of Earth (5 million miles or 8 million kilometers) and of a size large enough to reach Earth's surface - that is, greater than approximately 30 to 50 meters. NASA tracks and characterizes these objects and issues warnings about potential impacts, providing timely and accurate information. NASA also leads the coordination of U.S. Government planning for response to an actual impact threat. (AFP)
Asteroid and Earth
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Water on Earth may have come from asteroids. (Pixabay)

ater is the life force behind every living being on planet Earth. Without water, there is no life. Until now, we have believed that water was already present on Earth when the first living beings came into existence. However, a recent study has made an astonishing discovery that puts this very thought into doubt. The study has revealed that water may have originated on an asteroid.

The study was conducted after collecting samples from an asteroid called Ryugu by the Japanese Hayabusa-2 space probe during a 6-year space mission. The probe gathered 5.4 grams of dust and rock samples from the asteroid which scientists used to gather information on the origin of life. Hayabusa-2 was launched in 2014 with a mission to gather samples from the asteroid Ryugu, nearly 300 million kilometers away. The probe successfully returned with the samples in 2020.

In a new paper published in the journal Nature Astronomy, the scientists said that the samples collected by the probe could shed new light on the origin of life as well as the formation of oceans on Earth.

"Volatile and organic-rich C-type asteroids may have been one of the main sources of Earth's water," scientists said in the published paper.

"The delivery of volatiles (that is, organics and water) to the Earth is still a subject of notable debate.” However, the presence of organic materials found in “in Ryugu particles, identified in this study, probably represent one important source of volatiles”.

The study said, "Ryugu particles are undoubtedly among the most uncontaminated Solar System materials available for laboratory study and ongoing investigations of these precious samples will certainly expand our understanding of early Solar System processes.”

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First Published Date: 17 Aug, 13:33 IST
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