Dark Energy and Dark Matter
In the mid 1990s, one thing was genuinely sure about the extension of the universe. It may have enough vitality thickness to stop its extension and recollapse, it may have so little vitality thickness that it could expand constantly, however gravity was sure to slow the development as time went on. Truly, the easing back had not been watched, in any case, hypothetically, the universe needed to slow. The universe is brimming with issue and the alluring power of gravity arranges all issue. At that point came 1998 and the Hubble Space Telescope (HST) perceptions of removed supernovae that indicated that, quite a while back, the universe was really extending more gradually than it is today.