The Dark Sector Lab (DSL), located 3/4 of a mile from the Geographic South Pole, houses the BICEP2 telescope (left) and the South Pole Telescope (right). Steffen Richter/Harvard University hide caption

itoggle caption Steffen Richter/Harvard University

Observing the multitude of galaxies in our own universe is a piece of cake. Observing the multiverse, if such a thing exists, seems impossible. Above, the Milky Way rises above the ESO's ALMA observatory in Chile. Y.Beletsky/ESO hide caption

itoggle caption Y.Beletsky/ESO

This image released Monday by Harvard-led researchers represents the gravitational waves in the Cosmic Microwave Background in the microsecond after the Big Bang. Harvard-Smithsonian Center for Astrophysics hide caption

itoggle caption Harvard-Smithsonian Center for Astrophysics

Part of the ALMA array on the Chajnantor plateau of Chile points skyward to the Milky Way, our own galaxy. The center of our galaxy is visible as a yellowish bulge crossed by dark lanes, which are themselves huge clouds of interstellar dust. José Francisco Salgado/ESO hide caption

itoggle caption José Francisco Salgado/ESO

The Milky Way dominates the sky over Chile's Atacama Desert, home to the European Southern Observatory. John Colosimo/ESO hide caption

itoggle caption John Colosimo/ESO

An illustration shows how the planet Kepler-36c might look from the surface of the neighboring Kepler-36b. David Aguilar/Harvard-Smithsonian Center for Astrophysics/NASA hide caption

itoggle caption David Aguilar/Harvard-Smithsonian Center for Astrophysics/NASA

Cosmic microwave background radiation (CMB) as observed by Planck. The CMB is a snapshot of the oldest light in our Universe, imprinted on the sky when the Universe was just 380,000 years old. Planck Collaboration/ESA hide caption

itoggle caption Planck Collaboration/ESA

Science has been working to shed light on the nature of the Universe for 400 years. Alberto Pomares/ hide caption

itoggle caption Alberto Pomares/