5
Dec
2018

Gusts of solar wind may have blown together rocks that formed Earth

We may have had a windy start

We may have had a windy start

NASA

By Leah Crane

Earth may have started as dust in the wind. Unlike in many other stellar systems we’ve seen, the area close to our sun is empty. That may be because early in the solar system’s formation, the solar wind blew rocks near the sun into the area where Mercury, Venus, and Earth eventually formed.

The solar wind is a stream of particles emanating from the sun. Right now, the sun blows out almost 40 million billion kilograms of material a year, but this gale may have been even stronger …

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