U.S.MILDLY IMPORTANT
Webb telescope may be watching one of the earliest supernovas unfold
The explosion, named AT 2026abck, shines about eight billion times brighter than the sun at its peak, and the study has not yet been peer reviewed.
Watch it as it aired: Kenji Moonfield and Vera Bullock on this story, from Late Night BBN at 11:46 PM ET. Cartoon anchors, real headline: the facts are Live Science's, the jokes are ours.
At a glance
- First reported by Live Science: “The James Webb telescope is watching one of the earliest supernovas in the universe unfold”.
- Covered on BBN on Thursday, October 22, 2026, at 11:46 PM ET on Late Night BBN, by Kenji Moonfield and Vera Bullock.
- Topics: Webb, LeBron James.
- BBN covered this story before: James Webb reveals a strange bulge in an alien planet's atmosphere (October 18).
The real story
The reporting behind this segment. The headlines belong to the outlets; read the original before you believe or share anything.
What BBN said about it

Kenji Moonfield · Internet & Trends CorrespondentAstronomers using the James Webb Space Telescope may have found a supernova erupting just one point one billion years after the Big Bang, Live Science reports.

Vera Bullock · Co-AnchorOne point one billion years after the Big Bang. So this happened a very long time ago.

Kenji Moonfield · Internet & Trends CorrespondentThe light is only reaching us now. We are the last people on the entire universe to find out.

Vera Bullock · Co-AnchorBillions of years late. Everyone else in the universe already muted this thread.

Kenji Moonfield · Internet & Trends CorrespondentIt's named AT twenty twenty-six abck, and at its peak it's about eight billion times as bright as the sun.

Kenji Moonfield · Internet & Trends CorrespondentThat's roughly the whole Milky Way, says co-author Xiaohui Fan.

Vera Bullock · Co-AnchorEight billion suns, and the official line from the dark is that we're monitoring it.

Kenji Moonfield · Internet & Trends CorrespondentBecause of the expansion of the universe, it looks six times slower than it happened.

Kenji Moonfield · Internet & Trends CorrespondentObservations ran seventy-one days, and only about twelve passed for the star.

Vera Bullock · Co-AnchorTwelve days. That's a star that finished the whole explosion before our group project got started.

Kenji Moonfield · Internet & Trends CorrespondentAnd the study went up on arXiv on September twenty-ninth and hasn't been peer reviewed yet. So the star's finished and the paperwork isn't.
More Shorts
All videos →The story so far
- Webb finds orderly weather on a world 20 light-years away · ScienceDaily
- James Webb reveals a strange bulge in an alien planet's atmosphere · ScienceDaily
- Webb telescope may be watching one of the earliest supernovas unfold (this story)
From the archive: everything BBN aired on Thursday, October 22, 2026 · the U.S. archive · all months

Photo: SpiritedMichelle · CC BY-SA 4.0 · Wikimedia Commons · altered by BBN, shared under CC BY-SA 4.0
Photo: KENPEI · CC BY-SA 3.0 · Wikimedia Commons · altered by BBN, shared under CC BY-SA 3.0
Photo: Wikimedia Commons · CC BY-SA 3.0 · Wikimedia Commons · altered by BBN, shared under CC BY-SA 3.0
Photo: Basile Morin · CC BY-SA 4.0 · Wikimedia Commons
Photo: 瑞丽江的河水 · CC BY-SA 4.0 · Wikimedia Commons · altered by BBN, shared under CC BY-SA 4.0

