Mars: Death of a Planet
Δημοσιεύτηκε στις 11 Νοε 2015
This
is the story of a discovery made on St. Patrick's Day, 2015. We learned
just how much Mars is at the mercy of our sun. During a solar outburst
that hit Mars that day, the NASA spacecraft Maven measured an
accelerated loss of molecules in its upper atmosphere.
In its
early days, Mars appears to have had enough surface water to cover the
entire planet to a depth of 140 meters, and an atmosphere that was thick
enough to hold it there. But a more active sun in those days began a
long slow process of steadily eroding the Martian air and sending it out
into space. The water dried up, and whatever life forms had developed
had no chance to thrive and evolve on the surface.
Music by Epidemic Sound (http://www.epidemicsound.com)
is the story of a discovery made on St. Patrick's Day, 2015. We learned
just how much Mars is at the mercy of our sun. During a solar outburst
that hit Mars that day, the NASA spacecraft Maven measured an
accelerated loss of molecules in its upper atmosphere.
In its
early days, Mars appears to have had enough surface water to cover the
entire planet to a depth of 140 meters, and an atmosphere that was thick
enough to hold it there. But a more active sun in those days began a
long slow process of steadily eroding the Martian air and sending it out
into space. The water dried up, and whatever life forms had developed
had no chance to thrive and evolve on the surface.
Music by Epidemic Sound (http://www.epidemicsound.com)
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