Planet Mercury in 3D

Mercury - Mercure - Mercurio

Mercury, Venus, Earth and mars are depicted at 5 times the scale of the Sun and other planets.  Main planet on the A side not to scale.

This 3D postcard was bought in Finland in 2017.  

Solar Flare & Aurora Borealis

Solar Flare and Aurora Borealis
NASA photo
2007

Planet Earth With The Moon and Sun in 3-D

Earth, Moon and Sun
Erde, Mond und Sonne - Tierra, Luna y Sol 0 Terre, Lune et Soleil
Data: NASA Earth Observatory

This 3D postcard was bought in 2015.  It is unused and was made in Germany.

Solar Coronal Loops from TRACE Satellite

The sender writes:

This is a picture of solar coronal loops from the orbiting TRACE satellite.

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Coronal loops form the basic structure of the lower corona and transition region of the Sun.

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TRACE (Transition Region And Coronal Explorer) was a NASA space telescope designed to investigate the connections between fine-scale magnetic fields and the associated plasma structures on the Sun. It launched in 1998 and obtaining its last science image in 2010.