MATTER IN THE UNIVERSEOUR PLACE IN THE UNIVERSECROWDED CITYOUR PLANETTHE SOLAR SYSTEMOUR GALAXYTHE EXPANDING UNIVERSEWHERE SPACE BEGINSUNIVERSAL FORCESFIND OUT MOREEverything that exists – stars,…
Home and Harvest: The Sisters of HeraClassical MythologyThe Reign of Thunder and Lightning: Olympus Under ZeusMaster of the UniverseA Heavenly Marriage? Hera and ZeusSurf and Turf: The Brothers of…
(Encyclopedia) lutetium, formerly luteciumluteciumboth: l&oomacr;tēˈshēəm [key], metallic chemical element; symbol Lu; atomic number 71; at. wt. 174.9668; m.p. about 1,663℃; b.p. about 3,395℃; sp…
Geological TimeTheories of the UniverseCracks in a Newtonian WorldFaster Than a Speeding Light WaveIt All Depends on Your PositionThe Relative Nature of Space and TimeGeological TimeHow Can You Be in…
(Encyclopedia) superior planet, planet whose orbit lies outside that of the earth. The superior planets are Mars, Jupiter, Saturn, Uranus, and Neptune.
Source: The National Aeronautics and Space Administration (NASA) The diameter of our closest star, the Sun, is 1,392,000 kilometers. The Sun is thought to be 4.6 billion years old. The Sun is a…
WHAT IS NEPTUNE MADE OF? TRITONFIND OUT MORENeptune is 30 times farther from the Sun than Earth, and has the most powerful hurricanes of any planet in the Solar System. It is a gas giant with faint…
Uranus is a greenish-blue planet, twice as far from the Sun as its neighbor Saturn. Uranus wasn't discovered until 1781. Its discoveror, William Herschel, named it Georgium Sidus (the Georgian…
Introduction eclipse (ēklĭpsˈ, ĭ–) [key] [Gr., = failing], in astronomy, partial or total obscuring of one celestial body by the shadow of another. Best known are the lunar eclipses,…
