Sun

NASA, Wikimedia Commons, Public Domain

Retired NASA astrophysicist Fred Espenak has 'written the book' on eclipses - many, many books, actually. He has seen 27 total solar eclipses and at least one on every continent. Matt Markgraf speaks with Espenak about why you should see the total eclipse, what it is, how to predict one and what kind of gear he's using to take photos of "The Great American Eclipse" on Monday.

It's a mission that's been in the works for nearly 60 years. NASA says it will launch a spacecraft in 2018 to "touch the sun," sending it closer to the star's surface than ever before.

The spacecraft is small – its instruments would fit into a refrigerator — but it's built to withstand temperatures of more than 2,000 degrees Fahrenheit, all the while maintaining room temperature inside the probe.

Lonnie Puterbaugh, Facebook

The Hopkinsville Christian County Convention and Visitors Bureau sponsor a pre-solar eclipse event this Saturday with Lonnie Puterbaugh, designer of "The Astronomy Channel," a mobile observatory from Brentwood, Tennessee. Puterbaugh says the sun is quite active in its post solar maximum stage and invites the public to see the flares and prominences, as the community gets ready for the 2017 total eclipse.

Venus Transit

Jun 4, 2012
Wikimedia Commons

The planet Venus will pass in front of the sun Tuesday. Its an event that won’t happen again for another 105 years.