Astronomers Confirm Discovery of the Youngest Known Exoplanet Ever
This is an essential question in astronomy, one that researchers try to answer by observing “young planets.” That’s easier said than done. All the planets in our solar system are the same age, 4.6 billion years old. Astronomers therefore need to look elsewhere to find planets that have formed more recently—making exoplanets enticing research grounds.Still, the vast majority of the approximately 6,000 exoplanets confirmed to date are also billions of years old.
- ▪This is an essential question in astronomy, one that researchers try to answer by observing “young planets.” That’s easier said than done.
- ▪All the planets in our solar system are the same age, 4.6 billion years old.
- ▪Astronomers therefore need to look elsewhere to find planets that have formed more recently—making exoplanets enticing research grounds.Still, the vast majority of the approximately 6,000 exoplanets confirmed to date are also billions of ye
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| Original publisher | WIRED |
| Canonical URL | https://www.wired.com/story/astronomers-confirm-discovery-of-youngest-known-exoplanet-ever/ |
| Publication time | Mon, 05 Oct 2026 18:15:16 +0000 |
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Teruyuki HayakawaScienceOct 5, 2026 2:15 PMAstronomers Confirm Discovery of the Youngest Known Exoplanet EverUnder 1 million years old, “Elias 2-24b” is now the youngest exoplanet ever observed, and it may force researchers to reevaluate theories about how planets are formed.Illustration: Lev SavitskiyCommentLoaderSave StorySave this storyCommentLoaderSave StorySave this storyHow are planets born, and how do they grow? This is an essential question in astronomy, one that researchers try to answer by observing “young planets.” That’s easier said than done. All the planets in our solar system are the same age, 4.6 billion years old.
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