waqas asif
Aug 22, 2017 · 2 min read
total solar eclipse nasa logo caleclipse
total solar eclipse nasa logo caleclipse

NASA; Caleclipse.org

When you open Facebook on August 21, a special message from the company will greet you about the total solar eclipse.

“On August 21st, the United States will experience the first coast-to-coast total solar eclipse in 99 years, making this the most important astronomical event in the social media era,” Facebook told Business Insider in an emailed statement.

In addition to NASA TV’s feed, Facebook will also promote a 4K-resolution, 360-degree Facebook Live broadcast from Charleston, South Carolina. This livestream will be fully interactive, so you can look around and feel like you’re actually on the ground in the path of totality. (Though nothing can beat the real experience.)

The message Facebook users see on Monday will read: “Experience the Total Solar Eclipse: Today millions of Americans will see the sky like they’ve never seen it before. Join us for this rare and beautiful cosmic event.”

Facebook said clicking on the message will help you watch NASA’s Facebook Live coverage, which starts at 12 p.m. EDT (9 a.m. PDT).

Here’s how the note will look for mobile users:

The social network said it also plans to push out new effects and filters for its Facebook Camera feature that will promote the hashtag #Eclipse2017.

Facebook wouldn’t tell Business Insider how many people it expects to tune in, but noted that 45 million of its users are connected to pages related to astronomy and space exploration. NASA’s Facebook page has 30 million likes on the social network.

The company also estimated that there “are about 9 million people on Facebook or Instagram who live in cities along the path of the total eclipse.”

united states us total solar eclipse map august 21 2017 nasa gsfc svs
united states us total solar eclipse map august 21 2017 nasa gsfc svs

A US map of the total solar eclipse’s shadow on August 21, 2017.NASA’s Scientific Visualization Studio

“This will be the most photographed, most shared, most tweeted event in human history,” Tyler Nordgren, an astronomer at the University of Redlands, recently told The Atlantic.

You can catch all of the best live video feeds of the total solar eclipse here, or watch NASA’s Facebook Live feed below.

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