A graph of sunlight shows dips during sunspots, and the increases that surround those dips due to plage (also called faculae). Also shown: decrease in sunlight during the transit of Venus.

Site Map | News | SpaceFlight | Science | Technology | Entertainment | SpaceViews | NightSky | Ad Astra | SETI
Image Galleries | Videos | Reader Favorites | Image of the Day | Amazing Images | Wallpapers | Community
about us | FREE Email Newsletter | message boards | register at SPACE.com | contact us | advertise with us | terms & conditions | privacy statement
DMCA/Copyright
  What is This?