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We’ve detected alien matter that came into our solar system from other parts of the galaxy--and, chemically speaking, it’s not exactly like what we find here at home.” says David McComas the principal investigator for IBEX at the Southwest Research Institute in San Antonio, Texas.
Our solar system is surrounded by the heliosphere, a magnetic bubble that separates us from the rest of the Milky Way. Outside the heliosphere lies the realm of the stars or “interstellar space”; inside lies the sun and all the planets. The sun blows this vast magnetic bubble using the solar wind to inflate the sun’s own magnetic field. It’s a good thing: The heliosphere helps protect us from cosmic rays that would otherwise penetrate the solar system.
Originally posted by theclutch
it almost seems that the more we learn, the closer we are getting to the idea, that we are just a teeny tiny cell in a giant bloodstream. Imagine the implications of this? our whole galaxy, is just a blood cell in a blood vessel, in an alien being, who has just found out that he is also in a galaxy, that is just like a blood vessel.
OMG. The implications.
I love these science videos from nasa!
Scientists Now Know: We're Not From Here!
Summary & comments by Dan Eden for Viewzone
Imagine the shock of growing up in a loving family with people you call "Mum" and "Dad" and then, suddenly, learning that you are actually adopted! This same sense of shock came as scientists announced that the Sun, the Moon, our planet and its siblings, were not born into the familiar band of stars known as the Milky Way galaxy, but we actually belong to a strange formation with the unfamiliar name of the Sagittarius Dwarf galaxy!