This Gassy '****' Exoplanet With 2 Suns Is Losing Its Atmosphere. But Why? | 7/31/2019 | Passant Rabie
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A "****" exoplanet, fully grown but still undergoing some changes, was recently discovered orbiting a young star in a binary system, and the find could provide some insight on how planets formed in our own solar system.

Scientists at Dartmouth College in New Hampshire observed the planet using NASA's Transiting Exoplanet Survey Satellite (TESS), which launched in April on a mission to look for alien planets orbiting the brightest stars in the night sky. The planet was discovered in November 2018 by NASA satellite and later confirmed by the group of scientists at Dartmouth in March.

Exoplanet - DS - Tuc - Ab - System

The exoplanet, named DS Tuc Ab, was found in a two-star system (it has two suns) but only orbits one of its stellar parents. It makes one orbit every eight Earth days, researchers said. They estimated the star system to be around 45 million years old. For comparison, our solar system is around 4.6 billion years old.

Due to its young age, the exoplanet is still experiencing some rapid changes, such as losing atmospheric gas due to the radiation its host star is emitting, according to a statement by Dartmouth College.

Goals - Astronomy - Picture - Systems - Galaxies

"One of the overall goals of astronomy is understanding the big picture of how we got here, how solar systems and galaxies take shape, and why," Elisabeth Newton, assistant professor of physics and astronomy at Dartmouth and co-author of the study, said in the statement. "By finding solar systems that are different from our own, especially young ones, we can hope to learn why Earth and our own solar system evolved in the ways that they did."

The brightness of the planet's host star is what led to its discovery in the first place.

Exoplanet - Evaporating - Scientists - World

By observing the exoplanet's evaporating atmosphere, scientists hope to predict how the world will evolve over...
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