Earth may have formed much more rapidly than previously believed after born as tiny millimeter-sized pebbles that accumulated over a period of just a few million years.
The new theory also implies that rather than water being delivered to Earth by icy comets, this vital ingredient for life is present on our planet due to our young planet thirstily sucking up water from its space environment.
The theory could have important implications for the search for life outside the solar system, indicating that watery and habitable planets around other stars may be more common than currently theorized.
The new theory put forward by the team suggests that around 4.5 billion years ago when the sun was an infant star surrounded by a disk of gas and dust, known as a proto-planetary disk, tiny particles of dust would be quickly sucked up by forming planets once they reached a certain size.
The new theory put forward by the team suggests that around 4.5 billion years ago when the sun was an infant star surrounded by a disk of gas and dust, known as a proto-planetary disk, tiny particles of dust would be quickly sucked up by forming planets once they reached a certain size.
In the case of the infant Earth, this "vacuuming up" of disk material ensured our planet was supplied with water. READ MORE...
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