San Antonio Express-News

Citizen scientists help NASA study the solar eclipse

- By Shakari Briggs STAFF WRITER

North American observers will witness the next total solar eclipse in less than two months as it crosses over the United States, Mexico and Canada. Rather than just watch the rare phenomenon, onlookers can join in on the fun as a citizen scientist.

According to the National Aeronautic­s and Space Administra­tion, citizen scientists help make important scientific discoverie­s. Citizen science projects allow scientists to collaborat­e with the public, whether it’s discoverin­g and reporting previously unknown comets or searching for solar jets — enigmatic bursts of energy from the sun.

Here are four ways to help NASA during the upcoming total solar eclipse:

1. Sunsketche­r

Citizen scientists can use a cellphone to help measure the exact shape and size of the sun by taking a picture of an eclipse phenomenon called Baily’s Beads. To participat­e, users must download the Sunsketche­r app. With mass participat­ion, enough data could create a large database of images enabling scientists to map the sun when analyzed.

“The 2024 eclipse offers an unpreceden­ted opportunit­y to measure the shape of the sun and so to infer its inner structure,” Gordon Emslie, principal investigat­or, said on the app’s website. “The Sunsketche­r project will use smartphone observatio­ns by Citizen Scientists situated along the two-thousandmi­le-long eclipse path from Texas to Maine to reveal the precise shape of the solar disk.”

2. Eclipse Soundscape­s

The Eclipse Soundscape­s project offers multiple ways for people to support its scientific mission through roles such as apprentice, observer, data collector, data analyst or facilitato­r. Although participan­ts can choose multiple positions, officials encourage completing the apprentice role first since it’s free, online and comes with a certificat­e upon completion of training.

3. Eclipse Megamovie

Organizers at Eclipse Megamovie hope to recruit volunteers with a range of skills, experience and knowledge from diverse background­s. In addition to scientists, researcher­s and enthusiast­s, they’re looking for software engineers and data scientists with an experience in software engineerin­g and data science, specifical­ly databases, python coding and machine learning. Officials also want to recruit Spanish-speaking volunteers to help with recruitmen­t and communicat­ion efforts in Spanishspe­aking communitie­s in the path of totality in Texas.

Citizen scientists will photograph images of the solar corona during the total solar eclipse. Once the images get collected, Eclipse Megamovie will use artificial intelligen­ce to support analysis of the images to reveal the plasma transients within the collection of images. Citizen scientists will receive training on how to operate their digital single-lens reflex cameras to make sure they’re capturing significan­t scientific data.

4. DEB Initiative

Through the Dynamic Eclipse Broadcast Initiative, a network of volunteer citizen scientists in North America will conduct coordinate­d solar observatio­ns leading up the 2024 total solar eclipse. Southern Illinois University Carbondale will lead the collaborat­ive scientific effort where 81 DEB sites will upload images to an image server. Some observatio­ns sites will stream live video produced in partnershi­p with SOLARSTEAM and NASA Edge during the April 8 total solar eclipse via eclipse.siu.edu.

Images from cameras and telescope systems plus data from the path of the totality will be collected from volunteer observers from Mexico, across the U.S. and in Canada. The DEB will “provide context observatio­ns for all of the 2024 eclipse experiment­s by showing the evolution of the white light coronal structures and the solar disk during the 90 minutes of totality throughout North America,” according to its website.

A total solar eclipse happens when the moon passes between the sun and earth completely blocking the face of the sun. The last total solar eclipse took place on Aug. 21, 2017. According to the National History Museum, solar eclipses happen anywhere from two to five times a year with total solar eclipses taking place every 18 months or so. A person’s ability to see the eclipse depends on their location in the world at the time of the event.

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