NASA intern discovers planet with two suns - just three days into the job

·Contributor, Yahoo News UK
Researchers working with data from NASA’s Transiting Exoplanet Survey Satellite (TESS) have discovered the mission’s first circumbinary planet, a world orbiting two stars (NASA)

An high school intern at NASA who had been at the job for just three days helped discover a new planet with two suns.

The planet TOI 1338 b was found 1,300 light-years away in the Pictor constellation - the only planet in the system with two stars.

The stars in the system make an eclipsing binary, which occurs when the stellar companions circle each other in our plane of view (NASA)

In 2019, Wolf Cukier joined NASA’s Goddard Space Flight Center in Greenbelt, Maryland, as a summer intern.

His job was to examine variations in star brightness captured by NASA’s Transiting Exoplanet Survey Satellite (TESS) and uploaded to the Planet Hunters TESS citizen science project.

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But the student spotted something unusual while examining TESS' star data.

Cukier said of the discovery: “About three days into my internship, I saw a signal from a system called TOI 1338.

The TOI 1338 system lies 1,300 light-years away in the constellation Pictor. The two stars orbit each other every 15 days (NASA)

“At first I thought it was a stellar eclipse, but the timing was wrong. It turned out to be a planet.

“I was looking through the data for everything the volunteers had flagged as an eclipsing binary, a system where two stars circle around each other and from our view eclipse each other every orbit.

A SpaceX Falcon 9 rocket carrying a TESS spacecraft lifts off on Wednesday, April 18, 2018, from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida. TESS, which stands for Transiting Exoplanet Survey Satellite, is a telescope/camera that will hunt for undiscovered worlds around nearby stars, providing targets where future studies will assess their capacity to harbor life, NASA says. (Photo by Red Huber/Orlando Sentinel/TNS/Sipa USA)
The Transiting Exoplanet Survey Satellite (TESS), is a telescope/camera that hunts for undiscovered worlds around nearby stars (NASA)

The four cameras used in the ongoing TESS analyse an area of sky for 27 days at a time, taking a photo every 30 minutes.

As planets pass in front of stars, - known as a transit - it can help astronomers determine the location of planets.

But a planet with two stars makes the transit method a little more difficult to spot. TESS could only spot the transit of the planet passing in front of the larger star.

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