You probably learned some variant on a planet-themed mnemonic in school. In today’s eight-planet solar system, Mercury, Venus ...

clocks are to be moved forward one hour at 2:00 a.m. The mnemonic is: "Spring forward, Fall back." Be sure to check out our best telescopes for viewing planets guide and our more general guides ...

Our grade school understanding of the Solar System may not take into account the constant discoveries being made in our ...