Laser-Heated Lava Balls Give a Glimpse Into Earth’s Early Atmosphere – ScienceAlert

Once, this thriving orb that is our home was an inhospitable ball of molten lava. A catastrophic collision around 4.5 billion years ago blew what existing atmosphere early Earth had into space, forming our Moon and for a time, melting our entire planet.
How our current atmosphere then became so unlike anything else in our Solar System, has been an enduring mystery. Some have speculated it was due to Earth having a distinct initial composition, perhaps because some parts of the inner planetary embryos…

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