PowerShares QQQâ¢, formerly known as QQQ or the NASDAQ- 100 Index Tracking StockÂ®, is an exchange-traded fund based on the Nasdaq-100 IndexÂ®. The Fund will, under most circumstances, consist of all of stocks in the Index.
Total Solar Eclipse of 2017 August 21. On 2017 August 21, a total eclipse of the Sun is visible from within a narrow corridor that traverses the United States of America.
Itâs commonplace to hear that solar eclipses are rare. However, on average there are 2.4 solar eclipses every year visible somewhere on the Earth. This number includes 3 types of solar eclipse, total, annular and partial. A total solar eclipse is visible from somewhere on Earth approximately every 18 months. It is rare to witness a total solar eclipse as the total phase of the eclipse is only visible from a narrow corridor across the Earthâs surface.