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NASA Discovers Mysterious 'Super-Earth' Planet Sending Repeated Signals


Wed 16 Jul 2025 | 01:05 PM
NASA agency
NASA agency
Rana Atef

NASA has announced the discovery of a mysterious planet similar to a "super-Earth," known as TOI-1846 b, which is emitting repeated signals from a distance of 154 light-years away.

The agency explained that the planet is twice the size of Earth and has four times its mass. 

It orbits a small, cool red dwarf star in a tight orbit, taking only about four days to complete a revolution. This tight orbit causes a strange, repeated dimming of the star’s light.

NASA noted that both space-based and ground-based telescopes have identified the planet as belonging to a rare category known as the "radius gap". This group falls between small rocky planets like Earth and larger gas-rich planets like Neptune.

Despite the planet's surface temperature being estimated at around 600°F (316°C), scientists do not rule out the presence of water.

NASA also stated that TOI-1846 b orbits much closer to its star than Mercury does to the Sun in our own solar system. The host star is about 40% the size and mass of the Sun.

NASA scientists hope to use the James Webb Space Telescope (JWST) to study the planet’s atmosphere using infrared technology. The goal is to search for signs of water vapor, methane, carbon dioxide, or other gases.