Hypothetical Planets

150_planetThroughout history, astronomers have observed heavenly bodies or some evidence of them that later “vanished”. Or did they? Hypothetical planets include:
* Vulcan, the intra-Mercurial planet
* Mercury's Moon
* Neith, the Moon of Venus
* The Earth's Second Moon
* The Moons of Mars
* The 14th Moon of Jupiter
* Saturn's Ninth and Tenth Moons
* Six Moons of Uranus
* Planet X
* Nemesis, the Sun's companion star
* References

Each has a story. Link -via Dark Roasted Blend

(image credit: NASA)

Newest 5
Newest 5 Comments

Pluto isn't a 'hypothetical planet', it's a classified 'dwarf planet'. Pluto's existence is not a theory, thus 'hypothetical' doesn't apply as an adjective.
Abusive comment hidden. (Show it anyway.)
One minute - why isn't Pluto on that list? It was thought to be a planet, but then taken away.
Anybody else miss it?
Abusive comment hidden. (Show it anyway.)
you know, if you shrunk the solar system down to scale with Pluto touching your toes and Mercury at the top of your head, Uranus is exactly where you'd think it would be.
Abusive comment hidden. (Show it anyway.)
Commenting is closed.


Email This Post to a Friend
"Hypothetical Planets"

Separate multiple emails with a comma. Limit 5.

 

Success! Your email has been sent!

close window
X

This website uses cookies.

This website uses cookies to improve user experience. By using this website you consent to all cookies in accordance with our Privacy Policy.

I agree
 
Learn More