Stjernestøv: Beskeder fra universets barndom

Our solar system could be one of the first in the universe. Astrophysicist Anja C.

Andersen once thought so.

Planets need dust, and according to the explanation at the time, it was produced mainly by red giant stars at the end of their lives.

It therefore took billions of years for our universe to have the building materials needed to form planets.

Her own studies of stardust in meteorites supported that explanation.