Encyclopedias

1 This 2006 Solar and Heliospheric Observatory (SOHO) Extreme ultraviolet Imaging Telescope (EIT) image shows a flare on the Sun. An unus...

Tonight is the best night to see Mars. The red planet will appear bright and can be seen without a telescope. Apparent brightness of Mars t...

Published On Thu Mar 18 2010 Cathal Kelly Staff Reporter We are surrounded by dozens of habitable planets. We just can’t see them yet, accor...