NASA’s Planet Patrol program is an innovative project that invites ordinary people like you to help search for exoplanets. This program taps into the power of citizen science, where everyday individuals can contribute to important scientific discoveries.

Through the Planet Patrol program, NASA hopes to increase the pace of exoplanet discoveries by getting people involved in the process of analyzing data collected from space missions. The data that NASA gathers is often too vast for scientists to go through alone, so they’ve opened up the task to volunteers.

If you have a computer and an internet connection, here’s how you can help scientists identify new planets!

What is an Exoplanet?

An exoplanet is a planet that exists outside of our solar system. These planets orbit stars other than our Sun, and they are often found in distant star systems. Some of these exoplanets are similar to Earth, while others are completely different.

Scientists first confirmed the existence of exoplanets in the 1990s, and since then, thousands of exoplanets have been discovered. Exoplanets can vary in size, temperature, and location. Some may be rocky like Earth, while others may be gas giants like Jupiter. One of the most exciting aspects of studying exoplanets is the possibility of finding planets that could support life.

The Role of the Transiting Exoplanet Survey Satellite (TESS)

NASA’s Planet Patrol program heavily relies on data from a satellite called the Transiting Exoplanet Survey Satellite, or TESS. Launched in 2018, TESS is designed to scan the sky and detect exoplanets by using a method called the transit method.

A satellite orbiting earth.

How Does TESS Work?

TESS observes stars to see if any exoplanets are passing in front of them. When an exoplanet passes in front of its star, it causes a small, temporary dip in the star’s brightness. This is known as a “transit.” By measuring these dips in light, scientists can calculate the size of the planet, its orbit, and whether it might be in the “habitable zone” (the region around a star where liquid water could exist). TESS is especially good at finding exoplanets near Earth’s size, which is crucial when searching for planets that could potentially support life.

The data TESS collects is sent back to Earth for analysis. However, this data is massive and complex, and that’s where the Planet Patrol program comes in.

What Does TESS Do for Exoplanet Discovery?

TESS has already made significant contributions to exoplanet discovery. It has identified thousands of potential exoplanets, and many of these have been confirmed through follow-up observations by telescopes on Earth and in space. The mission’s ultimate goal is to identify Earth-like planets in the habitable zone of their stars. These planets are of particular interest because they might harbor life or possess conditions similar to those of Earth.

While TESS does a great job of identifying potential exoplanets, scientists still need help in analyzing all the data it produces. That’s where the Planet Patrol program and citizen scientists like you come into play.

How Can You Participate in the Planet Patrol Program?

Participating in NASA’s Planet Patrol program is easier than you might think. All you need is a computer or smartphone with internet access, and you can start contributing to the search for exoplanets. Here’s how you can get involved.

Step 1: Visit the Planet Patrol Website

To get started, visit NASA’s Planet Patrol website. There, you’ll find a user-friendly interface that lets you access the data from TESS. The website provides tutorials and guides to help you understand how to analyze the data, so even if you don’t have a science background, you’ll be able to participate.

Step 2: Analyze Light Curves

The primary task in the Planet Patrol program is to analyze “light curves.” A light curve is a graph that shows the brightness of a star over time. When an exoplanet transits in front of its star, it causes a dip in the star’s brightness. These dips appear as patterns in the light curve. Your job is to look for these patterns, identify potential exoplanets, and mark them for further study.

Screenshot of a light curve from AstroPhil's Youtube video.

The process is similar to playing a video game where you spot the correct pattern. You’ll be shown light curves and asked to decide whether you think the graph indicates a possible exoplanet or if it’s something else, like a starspot or a fluke in the data. Each time you analyze a light curve, you are helping NASA scientists decide which stars to investigate further.

Step 3: Collaborate With Other Volunteers

You won’t be alone in your mission to discover exoplanets. Many other citizen scientists from around the world are also analyzing data through Planet Patrol. By working together, you can help speed up the discovery process and make important contributions to science. Some platforms even let you see how your work compares to others, which can be motivating and fun.

Step 4: Get Involved in Special Projects

In addition to analyzing light curves, NASA sometimes offers special projects or challenges related to exoplanet research. These can include tasks like identifying certain types of stars, examining particular regions of space, or helping to analyze specific datasets. These projects are a great way to deepen your involvement and make an even bigger impact on scientific research.

Step 5: Have Fun and Learn

Participating in the Planet Patrol program isn’t just about helping scientists; it’s also a great opportunity to learn. As you work through the data, you’ll gain a better understanding of how scientists detect exoplanets and how space missions like TESS operate. You might even discover something about the universe that you never knew before!

Why is the Planet Patrol Program Important?

The Planet Patrol program is important because it allows everyday people to contribute to groundbreaking scientific discoveries. By involving the public, NASA can analyze far more data than they could on their own, speeding up the process of exoplanet discovery. With the help of volunteers, NASA can better understand our universe and perhaps even find planets that are similar to Earth.

Moreover, as we search for planets that could support life, the Planet Patrol program might play a key role in answering one of humanity’s biggest questions: Are we alone in the universe?

Conclusion: Join the Search for New Worlds

NASA’s Planet Patrol program offers an exciting way for anyone—no matter your age or experience—to get involved in cutting-edge scientific research. By analyzing light curves and spotting potential exoplanets, you can directly contribute to humanity’s understanding of the universe. And with missions like TESS leading the way, the hunt for new worlds is just beginning.

So, why not get involved today? You never know—you could be the one to discover the next Earth-like planet!