Science Explained/Brief

Webb finds brown dwarfs about twice Jupiter's mass in IC 348

Astronomers using the James Webb Space Telescope searched the nearby star-forming region IC 348 and found brown dwarfs about twice Jupiter's mass, according to the report. The report gives the mass but little detail beyond it.

BriefPublished 15 September 20261 min read1 linked source · 3 checked facts

Using the James Webb Space Telescope, astronomers searched the nearby star-forming region IC 348 for brown dwarfs, which are less massive than the smallest stars. The source says they discovered brown dwarfs just twice the mass of Jupiter, bringing the study of these objects into a new mass range.

The same source describes the starry view of IC 348 as one of the largest images released to date from NASA's James Webb Space Telescope. It says the finding reveals new insights about the star-formation process.

What the reporting says

Each line below is stated by the page named above it, and only by that page.

Stated by phys.org

This starry view of the nearby star-forming region IC 348 is one of the largest images released to date from NASA's James Webb Space Telescope.
Using Webb, astronomers searched IC 348 for brown dwarfs, which are less massive than the smallest stars.
The researchers discovered brown dwarfs just twice the mass of Jupiter, bringing the study of these curious objects into a new mass range and revealing new insights about the star-formation process.

Our view

The low mass is the striking part, while the claim of new insights into star formation would need more detail to assess.

What the reporting says: Researchers discovered brown dwarfs just twice the mass of Jupiter in IC 348, bringing the study of these curious objects into a new mass range and revealing new insights about the star-formation process.

Sources

Phys.orgText stored 15 September 2026 · checked 15 September 2026

Found through monitored feeds: Phys.org. A feed address is how the desk finds a story, not the evidence for it — the sources listed above are the pages the facts were taken from.

How this story was checked. Written from the 1 page listed above, stored 15 September 2026; claims checked against that stored text on 15 September 2026.

What that means

3 of 3 reported statements were confirmed against the page that carries them; the rest were removed rather than published.
Figures in the text were required to appear in the stored source text: yes. Identifiers: yes.
The check reads stored text only: no claim rests on a fresh look that did not happen.
Where the reporting was silent, the text says so instead of filling the gap.

Webb finds brown dwarfs about twice Jupiter's mass in IC 348

What the reporting says

Our view

Sources

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