Oncast Mix · Big Ideas

Two Point Eight Million Eels on One Mountain

· Fact-checked before it aired. Unconfirmed claims from this segment are not shown.

On October 29, 2026, the four-year running average of global surface temperature anomalies reached 1.500°C above the 1850-1900 pre-industrial baseline in the Copernicus dataset. This follows several years of exceptional global heat, including recent individual years close to or above the 1.5°C mark.

The long-term warming trend is driven primarily by greenhouse gas emissions from fossil fuel use. Natural variability, such as El Niño, adds short-term heat on top of that trend; a four-year running average smooths year-to-year weather but still reflects the underlying warming.

A study in The Astrophysical Journal used IRIS observations of a 2015 M6.5 solar flare and found that the fractal “box-counting dimension” of flare ribbons tracked the magnetic reconnection flux rate. The authors say ribbon fine structure may be an indirect probe of coronal current-sheet fragmentation, but it is a single-event study, not a forecasting tool.

During the January 2019 total lunar eclipse, Hubble observed sunlight that passed through Earth's atmosphere and reflected off the Moon, detecting ozone's spectral signature. It was a real demonstration of using Earth as a proxy for studying potentially habitable exoplanet atmospheres.

A deep-sea survey off Tasmania estimated that roughly 2.8 million basketwork eels aggregate on a single underwater mountain. It is a dense aggregation estimate, not literally a “convention,” but the figure is consistent with the research. This is a snarky opinion about an unnamed public figure's media interviews; there is no checkable factual claim. This is a personal/patriotic statement about Ukrainian morale, not a factual claim. This is a personal clarification about the poster's own video game posts and his opinion that almost breaking a game can be fun.

Copernicus climate data show the four-year running average global surface temperature anomaly hit 1.500°C above the 1850-1900 pre-industrial baseline on October 29, 2026. This is not the same as formally

Fact-check

VERIFIED TRUE

A study in The Astrophysical Journal used IRIS observations of a 2015 M6.5 solar flare and found that the fractal “box-counting dimension” of flare ribbons tracked the magnetic reconnection flux rate. The authors say ribbon fine structure may be an indirect probe of coronal current-sheet fragmentation, but it is a single-event study, not a forecasting tool.

Can glowing ribbons expose solar magnetic reconnection? ☀️⚡ A new study links solar flare ribbons to coronal current-sheet fragmentation:https://t.co/t5foTA7HxV #SolarFlare #Sun #Astronomy #SpaceWeather #Physics #SpaceNews #Space #Science

Original post · AstroCurrent (@astrocurrentcom)

[astrocurrent.com](https://astrocurrent.com/solar-flare-ribbons-coronal-fragmentation/) / The Astrophysical Journal NAMES:

VERIFIED TRUE

During the January 2019 total lunar eclipse, Hubble observed sunlight that passed through Earth's atmosphere and reflected off the Moon, detecting ozone's spectral signature. It was a real demonstration of using Earth as a proxy for studying potentially habitable exoplanet atmospheres.

Taking advantage of a total lunar eclipse in January 2019, astronomers using the NASA/ESA Hubble Space Telescope have measured the amount of ozone in Earth’s atmosphere. This method serves as a proxy for how they will observe Earth-like planets transiting in front of other stars

Original post · Quantum Cosmos (@quantamastral)

[nasa.gov](https://www.nasa.gov) / Hubble/ESA NAMES:

VERIFIED TRUE

A deep-sea survey off Tasmania estimated that roughly 2.8 million basketwork eels aggregate on a single underwater mountain. It is a dense aggregation estimate, not literally a “convention,” but the figure is consistent with the research. This is a snarky opinion about an unnamed public figure's media interviews; there is no checkable factual claim. This is a personal/patriotic statement about Ukrainian morale, not a factual claim. This is a personal clarification about the poster's own video game posts and his opinion that almost breaking a game can be fun.

The ocean has an eel convention. Attendance: about 2.8 MILLION. 🌊 A new study estimates that many basketwork eels gather at one underwater mountain off Tasmania. A spectacularly slippery crowd. #OceanLife #Science https://t.co/1sKPvBqBEp

Original post · Fun Breaking News! (@funbreakingnews)

[csiro.au](https://www.csiro.au) / University of Tasmania NAMES: POST bsky:at://did:plc:g62tajye723r3fa4gqw7l7ql/app.bsky.feed.post/3mz7bswngfc2z: NOCLAIM None.

VERIFIED TRUE

Copernicus climate data show the four-year running average global surface temperature anomaly hit 1.500°C above the 1850-1900 pre-industrial baseline on October 29, 2026. This is not the same as formally breaching the Paris Agreement's long-term 1.5°C threshold.

Breaking News! Code: UFB!!! On October 29, 2026, the 4-year running average for the global surface temperature anomaly hit 1.500°C above the 1850-1900 IPCC pre-industrial baseline (Copernicus data). Next up: the 5-year running average.

Original post · Prof. Eliot Jacobson (@climatecasino.net)

[climate.copernicus.eu](https://climate.copernicus.eu) NAMES: Copernicus = the EU's Earth observation and climate monitoring programme; Prof. Eliot Jacobson = a

Sources

What the hosts said

EBig Ideas, live. Two point eight million eels were just found on one underwater mountain.
SThat is not an eel convention. That is ocean gridlock.
EFun Breaking News posted on X about a new deep-sea survey.
SSo they estimated two point eight million basketwork eels at one seamount off Tasmania.
EThe post called it a "spectacularly slippery crowd," which is exactly right.
SWhy do they all pile onto one underwater mountain?
EThe study from Australia's national science agency and the University of Tasmania says it's a dense aggregation.
SDense aggregation. That's the least fun way to describe two point eight million eels.
EYou'd prefer "eel convention." Say it.
SFine, it's an eel convention. But I'm not picturing a convention center.
EOne underwater mountain, millions of eels. I don't need a building.
SIt is a wild number for a single spot. What do they even do there?
EProbably feed or breed where currents bring food. The scientists estimated and moved on.
SAnd we're just supposed to be normal about that?
ENo, we're on Big Ideas. We're allowed to be amazed.
SFrom deep ocean to high sun. AstroCurrent posted on X about a study linking solar flare ribbons to coronal current-sheet fragmentation.
EThat's a lot of syllables for "the sun did a thing."
SThe gist: glowing ribbons in a solar flare might reveal how the sun's magnetic field reconnects.
EWhy should I care about magnetic reconnection on the sun?
SBecause when it reconnects, energy and particles blast into space. That's what can mess with satellites and power grids.
EOkay, so what's new here?
SThe researchers used IRIS observations of a single twenty fifteen flare.
ESingle flare. So no forecast tool yet.
SCorrect, I checked. It's one event. The authors say ribbon fine structure may be an indirect probe, not a predictor.
ESo promising, not proven.
SIt's a direct observation, Eric. Solar physics builds one flare at a time.
EFine. It's a useful step. I just want the next observation.
SThat's the method. Wait for more data, or better, go get more data.
EWhile we're on cosmic things, AstroCurrent also posted, "Can a black hole split in two?"
SNo. In classical general relativity, black holes merge. They don't split.
EThe post points to a new study mapping theoretical limits of black hole fragmentation.
SIt's dressed as a question, and the study is unconfirmed. The account links to it, but I can't verify the actual paper.
EOh, come on. That's a theory question, not a fake news alert. You kill everything interesting.
SI'm not killing it. I'm saying the headline runs far ahead of the work. That's how junk science goes viral.
EThen say that. But "can a black hole split" is a real question, and if the math says no, that's worth knowing.
SFine, I'd phrase it as "a new preprint claims to map theoretical limits." Unconfirmed, maybe intriguing.
EThere's the balanced take. Two point eight million eels and an unsplit black hole.
SDon't combine those images.
SDifferent corner of space: Hubble used a total lunar eclipse to practice looking for life on other planets.
EHold on, Hubble looked at the Moon during an eclipse?
SQuantum Cosmos posted on X. During the January twenty nineteen eclipse, Hubble measured sunlight that passed through Earth's atmosphere.
EThen it bounced off the Moon.
SExactly. So Earth was the stand-in for an exoplanet.
EBut this is from twenty nineteen. It's not new, Sloane.
SIt's a proof of concept. They detected ozone's spectral signature.
EFrom a moon bounce?
SYes. That's the method they'd use to sniff habitable atmospheres around other stars.
ESo we used the Moon as a mirror to see if Earth looks alive.
SPretty much. We passed our own test.
EGood to know. If aliens ask, we're officially habitable.
SLet's not put that on a billboard.

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