In physical cosmology, the age of the universe is the time elapsed since the Big
Bang. The current measurement of the age of the universe is .... So a rough
estimate of the age of the universe comes...
Jan 4, 2010 ... Our estimate of the age and size of the Universe has changed during ... Hubble's
initial value of this constant gives an age of the universe of 2 ...
The slope of the plot, the ratio of velocity to distance, is known as the Hubble
constant. ... measures the rate of the expansion, and it also indicates the size and
age of the universe. ... How do astronomers estimate the Hubble constant? ...
Hubble's first measurements yielded a very steep slope and a high value for H0:
than it is today while the energy density of radiation in the Universe at that time ...
Based on current estimates of the value of Hubble's constant, how old is the ...
Mar 21, 2014 ... The Hubble Constant is the unit of measurement used to describe the expansion
of the universe. ... As of March 2013, NASA estimates the rate of expansion is
about ... variables) and WMAP, which extrapolated based on measurements of ...
This pegged the universe at about 12 billion years old (which has ...
Aug 4, 2012 ... This method assumes that all Zero-Age main sequence stars of a given ... with a
best value of 72 km/sec/Mpc. More recently, the Hubble Constant ... so the new
measurements imply an universe age of about 14 billion years.
Apr 3, 2011 ... age of Universe, Cepheids, cosmology, distance scale, supernovae ... Our best
current estimate of the Hubble constant is 73 ± 2 (random) ± ... Determining an
accurate value for Ho was one of the primary motivations for building HST. ....
based on entirely independent physics, give results consistent with the ...
With the currently accepted value for the Hubble constant Ho of 71 km/s/Mpc, ... of
gravity using current measurements of the universe's mass density (including
both ... checks on its predictions – in this case, the estimate of the universe's age t
0. ..... with adjustments made to the ages of objects within the universe based on...
If we want to estimate distances to galaxies beyond this limit, we need to find a
set of ... the current (May, 2005) value of the Hubble constant is somewhere
around ... our estimate of the age of the universe based on the Hubble constant?
This value of the Hubble constant is just an estimate, as it is hard to measure ...
Time since "close" to us = current distance / current speed = r / Vr = r / H r = 1 / H
... The value of 65 km/sec/Mpc implies an "age" for the Universe of 15 billion
years. ..... quoting are based on the assumption that the mass of th...