Credit & Copyright: Mount Wilson Observatory
Explanation:
In the 1920s, pictures from the Hooker Telescope on Mt. Wilson fundamentally
changed our understanding of the cosmos. Astronomer
Edwin Hubble,
using photographs he took with this
telescope,
demonstrated that the objects his contemporaries
called "spiral nebulae" were actually huge systems of stars - spiral
galaxies, similar to our own Milky Way galaxy but incredibly distant.
Prior to Hubble's work
it was argued that
the spiral nebulae were mere clouds of gas and that they, along with
everything else in the universe, were contained in our own galaxy.
The Hooker Telescope mirror is 100 inches in diameter which is
nearly the size of the mirror
of the orbiting Hubble Space Telescope named in Hubble's honor.
The Mount Wilson Observatory offers a
"virtual walking tour"
of this historic telescope.
For more information see Mount Wilson Observatory Historical Image Archives
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
Январь Февраль Март Апрель Май Июнь Июль Август Сентябрь Октябрь Ноябрь Декабрь |
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
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