NASA to webcast total solar eclipse the morning of Aug. 1
Mark your calendars. On Friday, Aug. 1, NASA scientists will broadcast and webcast the next total eclipse of the sun, live from
During a total solar eclipse, the moon’s shadow falls on Earth. The shadow is cast when the moon passes directly between Earth and the sun. For a few seconds, the moon blocks the sun’s light. Spectators who live within regions where the shadow falls will witness the moon blocking out the majority of the sun’s light.
This particular eclipse will sweep across the planet in a slim path that begins in
When the moon totally obscures the sun — the moment of totality — the sun’s outer atmosphere, called the solar corona, becomes visible. The solar corona reaches temperatures higher than a million degrees Celsius and extends farther than 620,000 miles from the star’s surface. Because the sun’s surface is brighter than its corona, a solar eclipse is the only opportunity to see the corona with the naked eye (with proper eye protection. Click here for a guide.)
The last time the solar corona was seen during a total solar eclipse was on March 29, 2006. Spectators within a narrow corridor beginning in
The next total solar eclipse will occur on July 22, 2009. Viewers in