More Celestial Neighbors Found By Dark Energy Survey

Eight more faint celestial objects hovering near our Milky Way galaxy have been discovered by scientists on the Dark Energy Survey, using one of the world’s most powerful digital cameras. Evidence suggests that they, like the objects found by the same team earlier this year, are likely dwarf satellite galaxies, the smallest and closest known form of galaxies. A satellite galaxy is a small celestial object that orbits larger galaxies, such as our own Milky Way. [Read More]

The Best Supernovae Type for Measuring Cosmic Distances

The bright explosions of dead stars have been used for years to light the far-flung reaches of our cosmos. The explosions, called Type Ia supernovae, enable astronomers to measure the distances to galaxies and gauge the ever-increasing rate at which our universe is stretching apart. But these tools aren’t perfect. In the cosmic hardware store of our universe, improvements are ongoing. In a new report astronomers identify the best, top-of-the-line Type Ia supernovae for measuring cosmic distances, pushing other, more clunky tools to the back of the shelf. [Read More]

Hunting Dark Energy with Very Slow Neutrons

Gravity resonance spectroscopy is so sensitive that it can now be used to search for Dark Matter and Dark Energy. This low energy, table top alternative to massive particle accelerators takes validity of Newtonian gravity down by five orders of magnitude. It also narrows the potential properties of the forces and particles that may exist beyond it by more than one hundred thousand times. All known existing particles make up only about five per cent of the mass and energy of the universe. [Read More]