The Crab Nebula Taken by The Hubble Telescope

The sender writes:

This is a composite photograph produced from 24 individual images taken by the Hubble Space Telescope and is the most detailed image of the Crab Nebula that has been produced to date.

The postcard was mailed in 2014.

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 The Crab nebula lies in the Perseus Arm of the Milky Way galaxy, at a distance of about 2.0 kiloparsecs (6,500 ly) from Earth. 

The Andromeda Galaxy (M31)

The Andromeda Galaxy (M31) as seen by the 200-inch optical telescope at the Palomar Observatory.  Like the Milky Way, Andromeda is a spiral galaxy orbited by Two companion galaxies, seen as bright spots above and below the Andromeda.  Andromeda is approximately 20,000 light years across, and about 2 million light years away.  (One light year is 9.5 trillion miles.)  It is the nearest spiral galaxy similar to the Milky Way.

Official NASA Photograph

Star Cluster NGC 3603 in the Milky Way

The sender writes:
This is the Star Cluster NGC 3603.

This is a postcard that is postmarked in 2014.

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NGC 3603 is a nebula situated in the Carina spiral arm of the Milky Way.

Sh2-106, Emission Nebula and Star Formation in the Milky Way

The sender writes:
This bipolar star forming region is called Sharpless 2-106.  This picture is a December 2011 release from NASA / Hubble of a Nebula that looks like a snow angel.
The heavens declare HIS glory!

This postcard is postmarked in 2014.

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Sh2-106 is an emission nebula and a star formation region in the constellation Cygnus. It is in an isolated area of the Milky Way.

A Warped Galaxy

Warped Galaxy
NASA
This Galaxy, with its warped dusty disk, has an unusual twisted disk structure.

Photo by Hubble Space Telescope.

This postcard is mailed in 2006.

Core of Galaxy NGC 4261

Space views from the Hubble Telescope
Core of Galaxy NGC 4261
Located 45 million light-years away and estimated to be 300 light-years across, the giant elliptical galaxy NGC 4261 is one of the twelve brightest galaxies in the Virgo cluster.

The sender writes, " 300 light-years across = approx 1,76354994 X 10 (with a little 18 to the right of the 10) miles across!  WOW! that's 3 times larger than our own galaxy."

This is postmarked in 2007. 

Star Cluster NGC 2074

The sender writes:
This is Star Cluster NGC 2074 in the Large Magellanic Cloud.
It is God's power displayed!

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The Large Magellanic Cloud (LMC) is a nearby galaxy, and a satellite galaxy of the Milky Way.