Fascinated by today's transit of Venus? You won't want to skip these NASA-hosted web chats with planetary and solar scientists, during which you can ask questions and learn more about this astronomical event.
- From 5:30 to 7 p.m., Dr. Jonathan Cirtain from the Marshall Center will answer questions just prior to the start of the transit and into its opening phase.
- From 7 to 9 p.m., Dr. Renee Weber from the Marshall Center will answer questions as the transit approaches its peak.
- From 9 to 11 p.m., Dr. Melissa McGrath from the Marshall Center will take questions as the transit peaks and begins to wane.
- From 11 p.m. to 1 a.m., Mitzi Adams from the Marshall Center will take questions as the final Venus transit until 2117 fades into the night skies.
Several live NASA video feeds will be available to observe the Venus transit. A live video feed of the transit as it looks over Huntsville, Ala., will be embedded on this page. NASA will also provide links to other cameras, including full coverage from Hawaii courtesy of NASA EDGE.
Often referred to as the "Evening Star" or "Morning Star," Venus, the second planet from the sun, is the brightest natural object in the sky after the sun and the moon.
A "transit" of Venus occurs when the planet passes between Earth and the sun in such a way that earthlings can see Venus's silhouette backlit by the sun's light. A transit of Venus last happened in 2004, but it won't happen again until 2117. And unless you plan to shatter some human longevity records, this is probably your last chance.
The transit will last six hours and 40 minutes.