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Microscopic dust particles have been found in meteoritic material on Earth, particles that were likely formed in stellar explosions that occurred long before the creation of our star, the sun. A team of researchers is studying whether the particles may have formed in a classical nova, a thermonuclear explosion on the surface of a small star which is part of a binary star system--two stars orbiting each other.
This explosion would have ejected stellar material in the form of gas and dust into the space between stars in the galaxy. Some of that material would have been used in the creation of our solar system.Image credit: Image by David Hardy of www.astroart.org.
