The prevalence of massive clusters in the young universe can help constrain the size and expansion history of the universe. (keckobservatory.org)
But in a division stacked with excellent passers, the Texans have no stud pass rusher, and if expansion history is any indicator, their secondary will likely get torched. (si.com)
Working with NASA on its Wide - Field Infrared Survey Telescope (WFIRST) mission, due to launch sometime after 2020 (see «Mapping the Dark,» page 47), Perlmutter will help choose between the different models by studying groups of supernovae that lie farther out in space than any yet studied, following the universe's expansion history back in time. (discovermagazine.com)