Astronomy and Astrophysics Citizen Science SciStarter Blog 

Explore the Cosmos at Home


From studying light pollution to growing tomato seeds that have flown in orbit, these citizen science projects can help you and your kids enjoy the cosmos at home.

SciStarter Blog

As the days get shorter and the nights get longer, it’s prime stargazing time. To celebrate, we’re featuring citizen science projects ideal for the astronomically-inclined, both those who love going out into the cool night air and those who prefer exploring from the comfort of their easy chairs. Either way, the cosmos await!


Backyard Worlds: Planet Nine

This artist’s concept shows the hypothetical super-Earth known as Planet Nine or Planet X, which some researchers think lurks far beyond Pluto in the outer reaches of the solar system. (Credit: R. Hurt/IPAC/Caltech)

What mysteries await in the outer reaches of our solar system, beyond Neptune, throughout the cosmos? Undiscovered planets? Dwarf stars? Swarms of lost socks? Scientists need your help to find out! You’ll run your eyeballs over telescope images to spot potential new discoveries.

Take Part: Join NASA’s Backyard Worlds: Planet Nine

Satellite Streak Watcher

Telescopes at Lowell Observatory in Arizona captured this image of galaxies on May 25, their images marred by the reflected light from more than 25 Starlink satellites as they passed overhead. (Credit: Victoria Girgis/Lowell Observatory)

You and your cell phone can help NASA scientists by photographing the paths of satellites in Earth orbit. These spacecraft are accumulating and cluttering up the cosmos for scientists trying to see into space. Your contributions will help them track this growing problem.about:blankabout:blank

Take Part: Join NASA’s Satellite Streak Watcher

Onward Into the Tomatosphere!

The Tomatosphere project sends seeds to orbit and returns them for kids to grow back on Earth. (Credit: NASA)

If you take some tomato seeds, expose them to the conditions of outer space, and then plant them, what will happen? With Tomatosphere, it’s your job to find out! The project staff provides the treated seeds, and you grow them, make observations and collect data. Tomatosphere is available to students in grades 3 through 10 in the U.S. and Canada.

Take Part: Join the Tomatosphere Project

Target Asteroids!

Image credit: NASA /JPL-Caltech

NASA’s OSIRIS-REx spacecraft made news recently by visiting asteroid Bennu. Now they’re looking for more asteroid travel destinations and, if you have an 8″ or larger telescope and a CCD camera, you can help. There are over a million asteroids with a diameter of more than 1 kilometer, and by joining Target Asteroids!, you’ll check them out and help NASA plan future missions.

Take Part: Join NASA’s Target Asteroids! Project

Spiral Graph

Spiral Graph asks users to trace out the shape of a spiral galaxy’s arms, helping give astronomers a potential proxy for studying a number of other properties. That may include things like a supermassive black hole’s size and the overall mass of a galaxy’s dark matter and stars. (Credit: Spiral Graph/NASA, ESA, S. Beckwith/STScI, Hubble Heritage Team/STScI/AURA)

Even if you can barely identify the Big Dipper, your amazing human brain can identify properties of galaxies that baffle even the most powerful computers. That’s why the Spiral Graph Project needs your help. You’ll measure how tightly wrapped spiral arms are in galaxies and identify interesting candidates for future, detailed telescope observations.

RELATED: Photographing Starlink Satellites For Science

Take Part: Join the Spiral Graph Project

Globe at Night

The Globe at Night project invites citizen scientists to record light pollution in their own community. (Credit: DMSP/NASA)

If you can go outside at night and look up, you have what it takes to participate in Globe at Night, a project that’s monitoring light pollution. Your job is to match the appearance of a constellation you see with 7 star maps of progressively fainter stars. Help create a global light pollution map with citizen science.

Take Part: Join the Globe at Night Project

You can find more citizen science projects at

Featured image: The M51 Whirpool Galaxy (Credit: NASA, ESA, S. Beckwith/STScI and the Hubble Heritage Team/STScI/AURA)

About the Author

Bob Hirshon, President, Springtail Media LLC Bob Hirshon heads up Springtail Media, specializing in science media and digital entertainment. He is Principle Investigator for the NSF-supported National Park Science Challenge, an augmented reality adventure that takes place in National Parks. Hirshon headed up the Kinetic City family of science projects, including the Peabody Award winning children’s radio drama Kinetic City Super Crew, McGraw-Hill book series and Codie Award winning website and education program. Hirshon can be heard on XM/Sirius Radio’s Kids Place Live as “Bob the Science Slob,” sharing science news and answering children’s questions.


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