An enormous world caught in a death spiral around its star might open a few of the tricks surrounding galaxy. The fate of this world is not yet set in stone, with 2 deaths and one “rebirth” possible in its future.

The extrasolar world or “exoplanet” in concern is TOI-2109b, which has 5 times the mass of Jupiter and lies around 870 light-years from our planetary system. The world orbits so near to its moms and dad star, TOI-2109, that it has a year that lasts simply 16 hours.

These qualities imply that TOI-2109b is categorized as an “ultrahot Jupiter,” an unusual class of worlds that represent around 1 in 500 worlds in the over 5,000 worlds in the brochure of recognized exoplanets. TOI-2109b stands out even amongst those extremely hot, star-hugging worlds.

“This is an ultra-hot Jupiter, and orbits much closer to its star than any other hot Jupiter ever discovered,” Macquarie University Research Fellow Jaime A. Alvarado-Montes stated in a declaration.”Just to put it into context, Mercury’s mass is almost 6,000 times smaller than Jupiter’s, but it still takes 88 days to orbit our sun.

“For a big gas giant such as TOI-2109b to completely orbit in 16 hours, it informs us that this is a world situated super-close to its star.”

That makes TOI-2109b the ideal lab to study worlds’ death spirals into their host stars, or more precisely, the phenomenon of orbital decay.

Related: Astronomers find origins of mystical double hot Jupiter exoplanets: ‘It is a dance of sorts’