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Near-Earth Supernovas

Supernovas near Earth are rare today, but during the Pliocene era of Australopithecus supernovas happened more often. Their source was an interstellar cloud called 'Sco-Cen' that was slowly gliding by ...
An uneven distribution of mass inside the Earth. The Earth
Amazing GRACE

Gravity has an effect on everyone and everything on Earth. Although we can't see it, smell it, taste it or touch it, we know it's there. Although scientists already know quite a bit about this invisib ...
The white lines represent the solar wind; the purple line is the bow shock produced by the interaction of the solar wind with the Earth
X-ray Emissions From Comets

The X-ray emission from comets is produced by high-energy particles, but the high-energy particles come not from the comet but from the sun. Matter is continually evaporating from the solar corona in ...

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