But on the scale of the entire Universe...NASA / WMAP Science TeamThe Universe is slightly cooler this year than last year. HUDF09 and HXDF12 teams / E. Siegel (processing)With an 13.8 billion year lifetime so far, the Universe has certainly been around for some time. If we look closely and precisely enough, we can observe these changes on timescales as small as a single year. These changes affect not only our home world, but our Solar System, galaxy, and even the entire Universe. We are only in the beginning stages of exploring how the Universe changes over time and what it looks like at the greatest distances and faintest extremes.

Source: Forbes January 01, 2020 06:56 UTC