What it is: A swap is an agreement between two parties to exchange a series of future cash flows. How it works (Example): Swaps are financial agreements to exchange cash flows. Swaps can be based on interest rates, stock indices, foreign currency exchange rates and even commodities prices.
Neptune was discovered in the fall of 1846. What is Neptune's nickname, 'Last of the Gas Giants. Neptune had gone through several name changes from LeVerrier's Planet to Janus to Oceanus, and then finally Neptune in 1846. It is also called, the watery planet. The planet has several nicknames, including: The Blue Planet.
Leverrier actually wanted to name it after himself. However, the name Neptune was proposed and became the standard used by scientists. Pluto (now a dwarf planet) was discovered in 1930 by Clyde Tombaugh at Lowell Observatory in Flagstaff, Arizona. According to the Nine Planets Website, other names suggested for Pluto included Lowell, Atlas, Artemis, Perseus, Vulan, Tantalus, Idana, Cronus, Zymal and Minerva (suggested by the New York Times).