Black Hole Star
A name that waited twenty years for an object
In August 2026 the press announced a new kind of thing in space. The thing had been sitting in a public archive since 2023. What was new was the agreement about what to call it.
One red point
It is the reddest thing in its patch of sky, and it vanishes entirely in bluer filters. The light left it 660 million years after the Big Bang and arrived at a telescope that had been looking for something else.
The survey that caught it is called Mirage or Miracle. Keep that name.
SourcedThe cliff in the light
Spread the light out by wavelength and it does something abrupt. Across a narrow span the brightness falls by more than twenty times. Astronomers call this a Balmer break, after the hydrogen transitions that cause it: hydrogen atoms sitting in a particular energy state absorb light above a certain frequency, and the spectrum drops off a cliff.
Beside the cliff sits an emission line 3,036 kilometres per second wide, with absorption cutting straight through its centre.
SourcedToo steep to be stars
Stars produce Balmer breaks too. That is the ordinary explanation for a red galaxy, and it has a ceiling. A dust-free population of stars tops out near 3. Build an impossible galaxy from nothing but the hottest-breaking A-type stars and you reach about 5.
This object measures 7.7. Every other puzzling red source found so far has landed at or below the stellar ceiling, which is why every one of them stayed arguable. This one does not.
SourcedSo they proposed a shape
The model: a black hole wrapped in gas so dense and so turbulent that the gas behaves like the atmosphere of a star. The envelope spans something like ten to a hundred astronomical units, one unit being the distance from Earth to the Sun. Almost no dust. The redness comes from hydrogen getting in the way, not from soot.
This shape is not new. Accreting black holes inside massive envelopes were worked out on paper in 2008, under the name quasi-star, as a way to explain how the earliest giant black holes grew so fast. It was a solution to an equation with nothing to point at.
SourcedNothing happened in August
The object was imaged in 2023. A spectrum of it sat in a public archive from December of that year. The deep spectrum was taken in December 2024. The full claim, with the model and the measurements, was posted openly in March 2025.
The journal published in August 2026. That is the date the news reported as a discovery. It is a fact about peer review, not about the sky.
SourcedAsk it how heavy
Apply the standard corrections and the black hole comes out around 200 million times the mass of the Sun. Correct for absorption alone and it drops to 50 million. Suppose instead that the wide emission line is broadened by light bouncing around inside the envelope rather than by orbiting gas, and it falls to about a million.
That is a factor of roughly 300, and the authors put all three in the same table. Their own conclusion is the useful one: if objects like this sit inside the other red dots, the black hole masses published for that whole population may be far too large.
SourcedA name becomes an object when the alternatives are closed off by measurement. This one has closed off stars, which is real progress and took a genuinely singular piece of data to do. It has not closed off the competing accounts of what the gas is doing, and the authors describe their own model as simplified and warn against reading detail into it.
So the honest description of what arrived in August is a well-defended proposal with a name attached. The measurement it is holding a place for is the mass, and the mass currently has three values. Watch that number. When it converges, the name will have become a thing. The survey said as much when it called itself Mirage or Miracle.
Naidu et al., “A Black Hole Star Reveals the Gas-Enshrouded Hearts of the Little Red Dots,” Nature, 12 Aug 2026; preprint arXiv:2503.16596, 20 Mar 2025.
Begelman, Rossi & Armitage, “Quasi-stars: accreting black holes inside massive envelopes,” MNRAS 387, 1649, 2008.
Observations: JWST programs GO-1837, GO-3543, GO-5224.