Dark energy may have once been ‘springier’ than it is today − DESI cosmologists explain what their collaboration’s new measurement says about the universe’s history
- Written by David Weinberg, Professor of Astronomy, The Ohio State University
The Mayall 4-meter Telescope at the Kitt Peak National Observatory houses the DESI instrument. KPNO/NOIRLab/NSF/AURA/P. MarenfeldGravity pulls us to earth, a lesson you learn viscerally the first time you fall. Isaac Newton described gravity as a universal attractive force, one that holds the Moon in orbit around the Earth, the planets in orbit...