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.
Solar eclipse of March 7, 1970. The total solar eclipse of March 7, 1970 was visible across all of North America and Central America. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth.