Asteroids Can Deliver Water to Earth – The New Data Breaks a Myth


Recently, scientists from NASA’s Ames Research Center located in California conducted an innovative experiment at the Vertical Gun Range. They fired marble-sized projectiles at volcanic rocks with the speed of 18,000 km/hour (11,200 mph). This experiment revealed interesting data: if some asteroids hit the Earth with high speed, they could bring water on the planet.

The study’s results were described in a paper which appeared on April 25th in the Science Advances Journal. Findings proved the fact that such collisions have the capacity to let up to 30 percent of the water from the asteroid trapped in the tacks created during the impact. However, not any asteroid can bring water on Earth. The projectiles shot during the experiment had the composition of carbonaceous chondrites, meteorites which are parts of ancient asteroids. The water-rich substance is what makes these asteroids unique.

Terik Daly, one of the scientists who worked on the study, declared that the origin of water on Earth and how it got here is one of the big mysteries from planetary science. In order to have a starting point, they associated the idea that some asteroids could bring water on our planet with the asteroids’ frequency in hitting it. Also, the experiment contributed to understanding the way water gets to the Moon, planets and even other asteroids.

The new data breaks a myth

Initially, astronomers thought that the water from Earth comes from comets. The latest information proves that asteroids are its’ main carriers. This idea is backed by measurements which show that the water from our planets has similar compounds as the liquid from carbonaceous asteroids.

Until now, they were not sure how asteroids can bring water on Earth. Their latest work showed that asteroids carry it. Researchers are very pleased to announce the study’s results. They say that this is the main reason for which experiments should be done more often.

Karen and her husband live on a plot of land in British Columbia. They aim to grow and raise a significant part of their food by maintaining a vegetable garden, keeping a flock of backyard chickens and foraging. They are also currently planning a move to a small cabin they hand built. Karen’s academic background in nutrition made her care deeply about real food and seek ways to obtain it. Thus sprung Anna’s interest in backyard gardening, chicken and goat keeping, recycling and self-sufficiency.


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