The European Space Agency’s new space telescope promises to unlock a key mystery of modern cosmology.
The Sloan Digital Sky Survey has released a new map of the universe — and the results confirm ongoing tension over the expansion rate of the universe.
The Hubble Space Telescope, which will celebrate its 30th birthday this April, has images cosmic mirages that yield two remarkable cosmological results.
Results from the first data release of the Dark Energy Survey include eleven new stellar streams in the Milky Way galaxy.
Satellite dwarf galaxies orbiting the Milky Way should help scientists better grasp the universe's evolution while also homing in on dark matter's identity.