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Astronomy page 14

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Saros cycle and Exeligmos
Eclipses of the Moon and Sun are synchronized in a Saros cycle and even better in a cycle
Chariklo asteroid (10199) and its 2 ringsRadioactivity of the Earth
Chariklo and its two amazing ringsRadioactivity of the Earth
Diversity of solar system objectsEscape velocity to small objects to the balck holes
Tourist travel in the solar systemEscape velocity...
Dark nebulasHubble constant
Dark nebulas...  Hubble constant and expansion
 
Frost line or ice line or snow line in the solar systemAberration of light
Frost line in the solar systemEffects of aberration of light
Cluster of galaxies El Gordoénergie noire
The heavier cluster of galaxies, El Gordo... The dark energy is necessary
atomic or electronic orbitals
The image of the atom or the first electronic orbital of the hydrogen atom
Composition of interstellar dustsynchronous and geostationary orbit
Composition of interstellar dust... How to calculate synchronous orbit?
 
Living on MarsGravitational waves BICEP2
Living on Mars is a dream...  Gravitational waves...  
See the exoplanetsKepler-186 system
Turn off the stars and see the exoplanetsThe habitable zone of Kepler-186
Beyond our senses, the great scientific revolutionsWhat is a Cepheid? - RS Puppis
Beyond our senses...  Cepheids, true standard candles
Einstein ring and Einstein crossFree flight into space
Einstein ring and Einstein crossWith or without horizon, where is the space?
geostationary satellitesRoche limit
Where is the geostationary orbit?Roche limit or limit not to exceed
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