Decades worth of data
from the Hubble Space Telescope has produced a new, more accurate measurement of the expansion rate of the universe.
The new examination of data
from the 32-year-old Hubble Space Telescope attempts to identify how quickly the universe expands, and at which rate it is accelerating through a number called the Hubble Constant
The number is a notoriously
tough one to pin down because different observatories looking at different areas of the universe have produced different results
The Hubble constant is a very
special number. It can be used to thread a needle from the past to the present for an end-to-end test of our understanding of the universe.
The team analyzed 42
of the supernova milepost markers with Hubble that are seen exploding at a rate of about one per year.
a value for the Constant of 67.5 plus or minus 0.5 kilometers per second per megaparsec.