05/06/2026
Finally we discovered the "Waterworld"
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There is an alien world with absolutely no land. None.
It’s all water.
TOI-1452 b, a super-Earth nearly five times our planet's mass, is completely enveloped by a massive, endless ocean.
Located about 100 light-years from Earth in the Draco constellation, TOI-1452 b represents a groundbreaking class of exoplanets known as super-Earths. Measuring approximately 1.67 times Earth’s radius and boasting nearly five times its mass, this colossal world is far from your typical rocky planet.
Its unique combination of size and density has led researchers to propose a fascinating possibility: a dense, rocky core buried deep beneath a vast, global ocean.
Unlike Earth, where water accounts for less than one percent of the total mass, this extraordinary world could be composed of a substantial fraction of water, making it a true 'water world.'
While astronomers have not directly photographed the surface of TOI-1452 b to confirm the total absence of land, the physical data collected by NASA's Transiting Exoplanet Survey Satellite (TESS) strongly suggests a volatile-rich composition.
This makes the planet an exceptionally enticing target for deeper atmospheric analysis using advanced instruments like the James Webb Space Telescope. If these models hold true, humanity may be looking at an entirely new category of planetary environments—one where the ocean has no shores, wrapping the entire world in an unbroken aquatic embrace.
source: Cadieux, C., Doyon, R., Plotnykov, M., Hébrard, G., Jahandar, F., Artigau, É., Valencia, D., Cook, N. J., Martioli, E., Vandal, T., Donati, J. F., Cloutier, R., Narita, N., Fukui, A., Hirano, T., Bouchy, F., Cowan, N. B., Gonzales, E. J., Ciardi, D. R., Stassun, K. G., ... & Watanabe, N. (2022). TOI-1452 b: SPIRou and TESS Reveal a Super-Earth in a Temperate Orbit Transiting an M4 Dwarf. The Astronomical Journal, 164(3), 96.
