A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar
gas, dust, and ... Many galaxies are thought to have black holes at their active
centers. The Milky Way's .......
Apr 1, 2014 ... Astronomers say there are 100 billion to 200 billion galaxies in the universe. But
accurately counting the number of galaxies depends on ...
www.ask.com/youtube?q=How Many Galaxies Are There?&v=bENTuGmw0Sg
Oct 13, 2011 ... Take a tour of the most distant galaxies ever photographed in the ... O_O or
maybe 1 universe = 1 life well how many universe are there? XD.
Jun 10, 2013 ... Common obervational wisdom among astronomers is that there are 17 billion
Earth-sized planets in our galaxy. They don't yet know how many ...
Jul 18, 2014 ... Scientists estimate how many galaxies there are in the observable universe by
counting up the number of galaxies in a tiny bit of the sky, and ...
They wonder how many solar systems are in our galaxy. ... allow scientists not
only to find other solar systems but also to study the planets there in greater detail
Jan 23, 2014 ... Throwback Thursday: How Do We Know How Many Galaxies There Are In The
Universe? 100 years ago, we thought the Milky Way was the full ...
Apr 24, 2015 ... How We Know How Many Galaxies Are In The Universe, Thanks To ... There
were only two choices: fly to space and service the telescope, ...
The Hubble Deep Field image shows hundreds of galaxies in a region of the sky
... of the sky is typical, you can easily estimate how many galaxies there are:.
Jul 18, 2015 ... I heard about the 18 quint planets but I thought it was going to be one Galaxy.
People keep saying there are multiple Galaxies and every time I..