10,000 Hidden Planets Found in NASA Data

Added: 2026-05-07

[00:00:00]10,000 hidden planets were found in NASA telescope data.

[00:00:05]Somewhere inside NASA's telescope archives, buried beneath millions of measurements of starlight, scientists may have found one of the largest hidden collections of worlds ever detected. Not confirmed planets yet, but planet candidates.

[00:00:22]More than 11,000 possible planets, including over 10,000 that appear to be new.

[00:00:28]>> [music] >> For years, NASA's TESS space telescope has been watching the sky, searching for tiny dips in the brightness of distant stars. Those [music] dips may look small, almost meaningless, but they can reveal something extraordinary.

[00:00:43]>> [music] >> A planet passing in front of its star, a shadow crossing light-years of space, [music] a hidden world announcing itself, not by glowing, but by [music] briefly blocking the glow of its sun. And now, after a massive new search through old TESS data, astronomers believe thousands of possible planets may have been hiding in plain sight.

[00:01:07]The discovery is not just about finding new [music] worlds. It is about a new way of doing astronomy. Because the next great discovery in space may not come from a new rocket launch. It may already be sitting inside data [music] we collected years ago.

[00:01:22]To understand why this matters, we have to understand how difficult it is to find planets beyond our solar system.

[00:01:30]Stars are huge, bright, [music] and visible across enormous distances.

[00:01:35]Planets are smaller, darker, and usually lost in the glare of their stars.

[00:01:41]>> [music] >> Trying to see a planet beside a distant star is like trying to spot a tiny insect flying next to a lighthouse from thousands of miles away. So, [music] astronomers often do not look for the planet directly. They look for its effect. One of the most powerful methods is called the transit method.

[00:02:00]>> [music] >> Imagine a star shining steadily in space. If a planet passes between that star and our telescope, the planet blocks a tiny fraction of the star's light. For a short time, the star appears slightly dimmer. Then the planet moves away, and the star brightens again. If this dip happens again and again at regular intervals, scientists may be seeing a planet in orbit. The [music] depth of the dip can help reveal the planet's size. The timing can reveal how long it takes [music] to orbit its star.

[00:02:33]The shape of the signal can help scientists decide whether it looks like a real planet or something else.