Space. .Mystery of the stars. . Burning lithium inside a star (artist's impression) Artist’s impression of a baby star still surrounded by a protoplanetary disc in which planets are forming. Using ESO’s very successful HARPS spectrograph, a team of astronomers has found that Sun-like stars which host planets have destroyed their lithium much more efficiently than planet-free stars.
How long to orbit Milky Way’s center? | EarthSky 11/28/16 One journey of our sun and planets around the center of our Milky Way galaxy is sometimes called a cosmic year. That’s approximately 225-250 million Earth-years. Artist's concept of solar system with the Milky Way galaxy in the background.
Astrological Planets –There are eight planets in the Solar System. In order of increasing distance from the Sun, they are the four terrestrials, Mercury, Venus, Earth, and Mars, then the four gas giants, Jupiter, Saturn, Uranus, & Neptune. Pluto was discredited by some...but I'm not buying it! lol