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Our Sun
Small dot indicated by arrow is added
to show the size of Earth.
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Sombrero Galaxy
contains 900 billion stars and
is 28 million light-years away.
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Hubble Ultra Deep Field, HUDF, image
contains over 10,000 galaxies and reaches 97% of the way to the edge of our observable universe.
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Wilkinson Microwave Anisotropy, WMAP
image of our universe when it was 375,000 years old, 36,000 times younger than it is today.
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Mice Galaxies
after their initial collision and
before their final merger.
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Perseus Cluster
contains over 1000 galaxies. Each of the fuzzy objects is an immense elliptical galaxy with a trillion stars.
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Cigar Galaxy
exploding after close encounter with larger galaxy.
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Supermassive Black Hole in Cygnus A
is one billion times the mass of our Sun. The
central dot is the accretion disk surrounding the black hole, from
which two jets emerge and span 500,000 light-years.
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A computer reconstruction of our galaxy,
the Milky Way,
which contains 300 billion stars,
with the Sun's position indicated.
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Remarkable "Blue Marble", our Earth.
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