Total Solar Eclipse 4+


Designed for iPad

    • 4.1 • 22 Ratings
    • Free



To keep our staff safe during this coronavirus pandemic, the Exploratorium won’t be sending a team to Chile to cover the December 14, 2020 solar eclipse as planned.

The Exploratorium, a hands-on museum of science, art, and human perception in San Francisco, California, brings you live images of the sun during the total solar eclipses occurring on July 2, 2019 and December 14, 2020. On July 2, 2019, our team will aim telescopes at the eclipse from the National Science Foundation's Cerro Tololo Observatory in Chile to capture the event and livestream it to the world via our 2018 Webby Award-winning app.

This app allows you to view three simultaneous video streams: 1) LIVE coverage hosted by Exploratorium educators and NASA scientists, 2) LIVE coverage in Spanish hosted by Exploratorium educators, and 3) a non-narrated, two and a half hour live telescope view of the full eclipse.

• Explore the path of totality of the 2019 eclipse and the 2020 eclipse with interactive maps and see the level of total eclipse you can observe from your location.
• Share livestream and past expedition videos.
• Follow the conversation on Twitter using #eclipse2019, #eclipse2020, #solareclipse, and #totalsolareclipse in the app's Twitter View and share your tweets about the eclipse.
• Watch and share videos that explain what an eclipse is and how to view an eclipse safely.
• Watch and share videos and explore maps from past Exploratorium eclipse expeditions including the 2017 eclipse that crossed the U.S.A. and the 2016 solar eclipse from Micronesia.
• Receive notifications about the eclipse.

When to Watch
The app displays viewing times for each livestream adjusted to your device’s time zone. Livestream start times in PDT / EDT / UTC are:

Live Coverage of the Eclipse / Cobertura en vivo en español
PDT: July 2, 2019 1:00 p.m.
EDT: July 2 2019 4:00 p.m.
UTC: July 2, 2019 20:00

Telescope View from Chile
PDT: July 2, 2019 12:23 p.m.
EDT: July 2, 2019 3:23 p.m.
UTC: July 2, 2019 19:23

Video Data Usage
We strongly recommend enabling WiFi on your device when viewing videos. Streaming videos can consume a large amount of data transfer, so please keep that in mind to avoid data overage charges from your mobile carrier. Under Mobile Network Data Usage on the Settings screen, choose “Play video only when connected to WiFi” to allow video play while on WiFi only.

This app requires the following permissions:
Internet Access to access all app content
WiFi Network to determine if you're connected to a WiFi network
Location to map your location on the eclipse path
Notification to send you updates about eclipse livestream viewing
Calendar to add an event to your calendar about eclipse livestreams

The eclipse livestream and app is made possible through a generous grant from NASA. This material is based upon work supported by the National Aeronautics and Space Administration under Grant No. NNX16AB96A issued through the Science Education Mission Directorate. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of the National Aeronautics and Space Administration.

What’s New

Version 1.2

• Updated for the total solar eclipses in South America in 2019 and 2020!
• Browse interactive path of totality maps for different eclipses.
• Now compatible with VoiceOver.
• More videos with Closed Captions.

Ratings and Reviews

4.1 out of 5
22 Ratings

22 Ratings

Circadies ,


Like, in fine print, one of the last features of this app is "live sonofication on the eclipse by the Kronos String Quartet."

This is the app for me! Especially because chances are strong that I'll be inside since I nanny an infant. And I also don't have eclipse viewing glasses.

But to listen to the Kronos String Quartet play along to nuclear fusion occurring in the sun as the eclipse happens?! Too exciting! The coolest part of this app being undermarketed is a shame.

Napstalker ,

More Explo greatness.

I have had so much fun with this app already. Loads of entertaining and useful information. So easy to use and navigate (I'm a stickler for user experience).

Kudos to the whole Exploratorium team for their great work!

powerbooks ,

Waste time: just self-promoting ad, nothing new nor special!

There are already couple apps dealing with this 2017 solar eclipse. This new app offers nothing more than a simulation video and bunch of advertisers for certain live telecasts during this event. It does not help you to figure out your local viewing condition, position, or time, etc. Nor does it offer any safety tips or useful tools on how to observe this event. The app presentation is also poor with limited usefulness in the front page. I will pass this and delete it.

App Privacy

The developer, Exploratorium, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.

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