Niflaos HaBorei: Scientists Find 10,000 Hidden Planets Beyond Our Solar System
Astronomers have uncovered what could be more than 10,000 previously unknown planets beyond our solar system, a discovery that could dramatically expand the known number of worlds orbiting distant stars.
Researchers say the universe is already filled with such bodies—known as exoplanets—but only a little over 6,000 have been officially confirmed so far.
Using a new approach that incorporates artificial intelligence, scientists were able to identify a vast number of additional candidates. If confirmed, the finding would represent a major step forward in the ongoing effort to locate planets that may resemble Earth and possibly support life.
The discovery also comes as NASA prepares for a potential 2026 launch of its advanced Nancy Grace Roman Space Telescope, which is expected to accelerate the search for new planets even further.
What are exoplanets?
Scientists have identified thousands of exoplanets—planets that exist outside our solar system—throughout the galaxy. Because of their distance, most cannot be observed directly, but researchers have determined that they come in many forms, ranging from small rocky planets to massive gas giants, as well as water-rich worlds and extremely hot planets.
Exoplanets are simply planets located beyond Earth’s solar system and are sometimes referred to as extrasolar planets.
While most orbit stars, much like Earth orbits the sun, some—known as rogue planets—drift freely through space without being tied to any star.
As of May 2026, NASA’s Exoplanet Science Institute reports that 6,286 exoplanets have been confirmed. In addition, nearly 8,000 more candidates are awaiting verification, and scientists believe that billions more exist throughout the universe.
In the latest breakthrough, researchers developed a method that enabled them to detect more than 10,000 additional possible planets that had previously gone unnoticed.
To do so, they relied on data from NASA’s Transiting Exoplanet Survey Satellite (TESS), which has already been responsible for identifying nearly 900 exoplanets. By applying a machine learning system to data collected during TESS’s first year of operation in 2018, scientists were able to identify 10,091 new objects that may be planets.
TESS detects potential planets by monitoring the brightness of stars. When a star’s light dims from the satellite’s perspective, it may indicate that a planet is passing in front of it, an event known as a transit.
Unlike earlier efforts that focused mainly on brighter stars, the research team broadened its analysis to include 83 million fainter stars previously observed by TESS. Although these newly identified objects remain candidates until further confirmation, the study—published on the research platform ArXiv and still awaiting peer review—marks a significant advancement in how astronomers search for new worlds.
Since the first exoplanet was discovered in 1995, scientists have been cataloging a wide variety of distant worlds.
However, one key goal remains unmet: identifying a planet that closely resembles Earth. Finding such a world would be a major milestone in the search for life beyond our planet.
Researchers came close to such a breakthrough in April 2025.
An exoplanet known as K2-18b drew widespread attention when scientists reported finding in its atmosphere “the strongest evidence yet” that life might exist elsewhere in the universe. However, other experts later questioned the findings, tempering excitement over the possibility that humanity had discovered definitive proof of extraterrestrial life.
Efforts to find life are not limited to distant stars but are also underway within our own solar system.
Mars remains a key focus as a potential record of ancient life, while several moons orbiting Jupiter and Saturn are also considered promising targets. NASA missions are studying these environments, including Jupiter’s moon Europa, where a spacecraft is expected to arrive in 2030 to examine its icy surface and subsurface ocean for signs of habitability.
Another candidate is Saturn’s moon Enceladus, which scientists believe may also possess conditions suitable for life.
Looking ahead, NASA plans to launch the Nancy Grace Roman Space Telescope in 2026. The observatory is expected to identify thousands of additional exoplanets, primarily using a method known as gravitational microlensing, further expanding humanity’s understanding of the universe.
{Matzav.com}
