SIENNA Puzzles

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  Constellations Lynx, Charioteer and Gemini

  4.2

  721

• 

  Constellation Lynx and Lesser Leo

  4.2

  723

• 

  Constellations Dolphin and Eagle

  4.3

  723

• 

  Planet in space at sunset

  4.9

  502

• 

  Constellations Hercules, Lyra and Corona

  4.2

  728

• 

  Massive black hole

  5

  422

• 

  An astronomer looks at Jupiter

  4.8

  418

• 

  Star cluster

  5

  444

• 

  Stars in the Orion Nebula

  5

  677

• 

  Constellation Ophiuchus

  3.9

  727

• 

  Constellations Lizard, Cygnus and Lyra

  4.2

  728

• 

  Constellation Draco, Ursa Minor and Cepheus

  4

  731

• 

  Constellation Cetus

  4.3

  737

• 

  Constellation orion

  4.5

  743

• 

  Dark Planet

  5

  841

• 

  Exoplanet

  5

  1214

• 

  Another planet

  4.7

  1791

• 

  The Hubble Space Telescope and Earth

  5

  235

• 

  Flying observatory

  4.4

  266

• 

  Space station in orbit

  4.6

  471

• 

  Astronauts on Mars

  4.9

  488

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