en.wikipedia.org/wiki/Age_of_the_universe

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...

w.astro.berkeley.edu/~dperley/univage/univage.html

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...

map.gsfc.nasa.gov/universe/uni_expansion.html

Jan 24, 2014 ... The current rate of expansion is usually expressed as the Hubble Constant (in ...
discovery was based on comparing his measurements of the Cepheid-based ...
the expansion rate (the Hubble constant) and age of the universe. ... values for
the Hubble constant that varied between 50 (km/sec)/Mpc and 100 ...

www.e-education.psu.edu/astro801/content/l10_p5.html

If we agree that Hubble's Law tells us that the universe is expanding, it also ... the
universe is expanding, because we know the value of Hubble's constant (H0 ) ...
You can actually calculate an estimate for the age of the Universe from Hubble's
Law. ... you with how long it took for the galaxies to reach their current sep...

www.cfa.harvard.edu/~dfabricant/huchra/hubble/

Hubble's initial value for the expansion rate, now called the Hubble Constant, ...
The expansion age of the Universe inferred from this was only 2 Gyr, but by the ...
a value of 75 km/s/Mpc, and by the early 1970's estimates from Sandage and his
.... want to calcuate parameters based on the best available current numbers:.

www.astronomynotes.com/galaxy/s16.htm

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.

www.astro.caltech.edu/~george/ay127/readings/FreedmanMadore2010.pdf

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 ...

answersingenesis.org/astronomy/age-of-the-universe/the-hubble-law/

Apr 1, 1995 ... The significance of the Hubble constant is explained, along with the ongoing ...
There is great confusion about the universe's age among people, ... Its value has
obsessed astronomers for decades, and yet it is still not known for sure. .... the
Hubble law is then used to estimate distances of galaxies that are ...

cseligman.com/text/galaxies/universe.htm

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...

hubblesite.org/newscenter/archive/releases/1994/49/background/

Oct 26, 1994 ... (To calculate the Hubble Constant, astronomers also need to know how fast a
galaxy ... In the past, the best ground-based observations have detected
Cepheids in ... because it is needed to estimate the size and age of the universe.
... distance from earth, and Ho is the current value of the Hubble Constant.