Molecules in Nebula Offer Clues to the Building Blocks of Life | NASA

Molecules in Nebula Offer Clues to the Building Blocks of Life | NASA

Combination of three color images of NGC 7023 from SOFIA (red & green) and Spitzer (blue) show different populations of PAH molecules. . (Credit: NASA/DLR/SOFIA/B. Croiset, Leiden Observatory, and O. Berné, CNRS; NASA/JPL-Caltech/Spitzer)

Credits: Credit: NASA/DLR/SOFIA/B. Croiset, Leiden Observatory, and O. Berné, CNRS; NASA/JPL-Caltech/Spitzer.