By some counts as much as 96% of everything in the universe comes from dark matter and dark energy. And, up to now, both are completely invisible. Few in the field question this theory, but could there be alternatives? Dean chats with Professor Stacy McGaugh from the Department of Astronomy at Case Western Reserve University to learn more.
Podden och tillhörande omslagsbild på den här sidan tillhör
Dean Regas. Innehållet i podden är skapat av Dean Regas och inte av,
eller tillsammans med, Poddtoppen.