Scientists Find Traces of Early Earth in Volcanic Rock
According to most scientists, Earth was formed between 4.5 and 4.6 billion years ago after gravity forced gas and dust left over from the creation of the Sun accreted into an object called a planetesimal. Over time, the planetesimal continued to gather more and more material and eventually became a planet. Scientists say heat produced […]
Rosetta Mission Fuels Argument About Origin of Earth’s Water
The debate about the origin of Earth’s water just got deeper. The European Space Agency’s (ESA) comet-chasing spacecraft Rosetta has sent back some interesting information regarding water vapor it detected and analyzed on its target, Comet 67P/Churyumov-Gerasimenko. According to the ESA and an international group of scientists, the analysis shows that the chemical composition of […]