In the Media

CNN reporter Ashley Strickland writes that astronomers have identified an extended dark matter halo around Tucana II, an ancient dwarf galaxy. "This probably also means that the earliest galaxies formed in much larger dark matter halos than previously thought," says Prof. Anna Frebel. "We have thought that the first galaxies were the tiniest, wimpiest galaxies. But they actually may have been several times larger than we thought, and not so tiny after all."