Decade-long Dark Energy Survey offers new insights into the expansion of the universe 

 Scientists studied 1,500 supernovas to better understand dark energy and the results call the standard model of cosmology into question. 

https://cdn.mos.cms.futurecdn.net/XieA7Q9STE9qzcwebbevX8.png

https://www.space.com/supernova-survey-suggests-dark-energy-may-change-over-time