Ultra-Faint Dwarf Galaxies: Not as Small as We Thought?
Astronomers use pulsating stars to look for stellar halos around ultra-faint dwarf galaxies, some of the smallest galaxies in the universe.
Astronomers use pulsating stars to look for stellar halos around ultra-faint dwarf galaxies, some of the smallest galaxies in the universe.
Particle physicists and astronomers have devised a new technique to observe high-energy neutrinos and have begun taking data with a new telescope.