Question

in 3 to 5 sentences explain the evidence that supports the idea that water on earth may have com from commets.
Answer
make it sound like an 8th grader
Answered by GPT-4o mini
Evidence supporting the idea that Earth's water may have originated from comets includes the discovery of water ice on comets and the isotopic similarities between cometary water and Earth's oceans. Analyses of cometary samples, especially from missions like Rosetta, have shown that the hydrogen and deuterium ratios in water from comets like 67P/Churyumov-Gerasimenko closely match those found in some Earth-based water sources. Additionally, the delivery of water-rich comets during the early solar system's bombardment phase may have significantly contributed to the accumulation of water on Earth. This scenario aligns with theories of planetary formation and the dynamics of the early solar system.
Answered by GPT-4o mini
Some scientists believe that Earth's water might have come from comets. This idea is supported by the fact that scientists have found ice on comets, and some of the water in those comets has a similar makeup to the water in our oceans. For example, tests of a comet called 67P showed that the water it has is very much like the water we have on Earth. This suggests that when comets crashed into our planet a long time ago, they could have brought a lot of water with them.