Binary Black Holes and Black Hole Devour: The Real Physics Behind Gloomia's Two Black-Hole Wallpapers
In April 2019, the Event Horizon Telescope collaboration released the first direct image of a black hole: a dark core wrapped in a lopsided ring of glowing gas, sitting at the center of the galaxy M87, 53 million light-years away. Three years later they did it again with Sagittarius A*, the black hole at the center of our own galaxy. Both images looked, to most people seeing them for the first time, almost exactly like what science fiction had been drawing for decades: a dark circle ringed by a bright, warped halo of light. That is not a coincidence. It is because the physics involved, gravitational lensing and a glowing accretion disk, produces a shape that is genuinely distinctive, and once you know what to look for you start noticing it everywhere, including in two wallpapers sitting in Gloomia's own catalog.
Binary Black Holes and Black Hole Devour are both built around that same visual grammar: light bending around a dark core, a disk of infalling matter glowing white-hot, jets firing from the poles. Neither one is a simulation of a specific real black hole, and neither pulls any live data the way Constellations, Orrery, and Asteroid Watch do. But the shapes and effects they render are not invented out of nowhere either. This post separates what is genuine astrophysics from what is artistic license in both wallpapers, and walks through the real science each one is dramatizing.
What's real and what's animation, stated plainly
Worth saying up front, since it is easy to conflate a wallpaper that looks scientifically accurate with one that is displaying real data: Binary Black Holes and Black Hole Devour are both pure animation. There is no telescope feed, no orbital catalog, no physics engine running an actual n-body simulation of two real black holes. What they do share with real observational astronomy is the underlying visual language, gravitational lensing rings and glowing accretion disks, which is drawn from how these objects actually appear, not from a specific event or dataset. If what you want is a wallpaper built from real astronomical inputs, Gloomia has three of those, covered in the astronomy wallpapers breakdown, and they are a genuinely different category of product from the two covered here.
That distinction matters less than you might think for how good the wallpaper looks on a desktop, though. A black hole is one of the few subjects where the real physics and the dramatic version look almost identical, because gravity near an event horizon is already about as extreme as physics gets. Nobody needs to exaggerate a black hole to make it look impressive.
Gravitational lensing: why the ring bends up and over
The single most recognizable feature of a black hole image, real or rendered, is that the glowing disk does not look like a flat ring seen edge-on. Instead, light from the far side of the disk, the side that should be hidden directly behind the black hole, appears to arc up and over the dark core, and again below it. That happens because gravity near a black hole is strong enough to bend the path of light itself, a real effect predicted by general relativity and confirmed well before anyone had a picture of a black hole to check it against. Photons passing close to the event horizon get deflected onto curved paths, so an observer far away sees light that "should" be blocked instead bent around into view. The technical name for this is gravitational lensing, and it is the same underlying phenomenon that lets astronomers use massive galaxy clusters to magnify and distort the light of objects behind them.
Both of Gloomia's black-hole wallpapers render this effect, and both let you turn it off. Binary Black Holes has a dedicated lensing toggle for "a calmer or more dramatic sky," and Black Hole Devour lets you toggle lensing independently of the jets. With lensing on, you get the familiar warped-ring look; with it off, the accretion disk reads as a simpler glowing shape without the light bending around the core, a genuinely different aesthetic rather than just a quality setting.
Binary Black Holes: two event horizons, one shared orbit
Binary Black Holes renders two black holes locked in a mutual orbit around their shared center of gravity, each dragging its own glowing accretion disk as they circle. As the orbit tightens, the disks flare brighter, and then the pair drifts back apart before the cycle begins again. Binary black hole systems are a real and actively studied class of object, most famously the kind of merging pair that produces gravitational waves detectable by observatories like LIGO, though those mergers are typically detected through gravitational-wave signals rather than direct imaging, since resolving two black holes as separate objects at that scale is far beyond current telescopes.
You control the orbital separation and speed directly, which changes the pacing of the whole scene: tighten the orbit and speed it up for something busier and more urgent, or loosen it and slow it down for a wallpaper that reads as almost still most of the time with occasional drama. The disks are independently recolorable, so you can run two matched colors for a more symmetrical look or contrasting ones to make the pair easier to tell apart as they cross paths. Combined with the lensing toggle described above, that gives you a fair amount of control over how calm or intense the wallpaper feels sitting behind a desktop full of windows, a consideration covered in more general terms in the setup guide for anyone deciding how much motion they actually want on a screen they work in front of all day.
Black Hole Devour: a star's last moments, on a loop
Black Hole Devour tells a more specific story: a wandering star strays too close to a black hole, gets torn apart, and is fed into the accretion disk before the scene resets and plays again. That is a dramatization of a real, observed class of event called a tidal disruption event, where a star passes near enough to a black hole that the difference in gravitational pull across the star's own diameter, stronger on the near side than the far side, stretches it into a long thin stream. Astronomers sometimes call this process spaghettification, and it is not just a theoretical prediction; telescopes have captured the bright flares these events produce as the shredded stellar material spirals in and heats up, including observations of tidal disruption events at various distances from Earth.
The twin beams firing from the black hole's poles in the wallpaper are relativistic jets, another real feature of active black holes: some of the infalling material never actually falls in, and instead gets launched outward at speeds close to the speed of light, focused into narrow beams by the black hole's spin and magnetic field. The M87 black hole imaged by the Event Horizon Telescope has one of the best-studied real examples, a jet that astronomers have tracked stretching for thousands of light-years away from the galaxy's core. In Black Hole Devour, the jets are a toggle you can switch off independently of the lensing effect, so you can keep the tidal stream and accretion disk while dropping the beams if you want a quieter composition, or run everything at once for the full effect.
You can also tune the speed and density of the tidal stream itself, which changes how gradual or sudden the star's destruction looks, and recolor both the disk and the star independently, so the doomed star can read as a contrasting bright point against the disk's glow or blend closer into the same palette.
Picking between the two
The two wallpapers share a visual family but land differently on a desktop. Binary Black Holes is more ambient: two objects circling in a loop with no clear beginning or end, well suited to a screen you are going to be working in front of for hours, especially with the orbit loosened and slowed down. Black Hole Devour has an actual narrative arc, a star's destruction playing out and resetting, which makes it a more attention-grabbing choice, better for a machine you glance at occasionally than one you are staring past all day while trying to concentrate. Neither is "correct"; it comes down to whether you want a steady backdrop or something with a bit of story to it.
Both sit within the wider space collection covered in the best space wallpapers roundup, alongside purely abstract pieces like Galaxy Spiral and Wormhole and the three real-data astronomy wallpapers discussed above. If you are running more than one monitor, the two black-hole wallpapers also pair well as a matched set across two screens, an approach covered in the dual-monitor setup guide.
Trying them for yourself
Both Binary Black Holes and Black Hole Devour are part of Gloomia Pro, alongside the rest of the catalog beyond the three wallpapers included free. If you have not installed Gloomia yet, the setup guide walks through installation on Windows, macOS, and Linux, and the free vs. Pro breakdown covers exactly what Pro unlocks and how the yearly and one-time pricing options compare. Every Pro wallpaper, including both covered here, can be tried live as a watermarked preview on your own desktop before you decide to buy, and you can browse the full lineup, including the rest of the space collection, on the wallpaper library page or check current pricing on the pricing page.
Frequently asked questions
Are Gloomia's Binary Black Holes and Black Hole Devour wallpapers based on a real black hole?
No. Both are purely artistic animations, not simulations of any specific real black hole or tied to live data. What they do borrow from real physics is the visual grammar astronomers actually use: gravitational lensing bending light around the event horizon and a glowing accretion disk of infalling gas, the same features seen in the Event Horizon Telescope's real images of M87* and Sagittarius A*.
What is gravitational lensing, in simple terms?
Gravitational lensing is light bending because it is passing through warped spacetime near a massive object. Near a black hole the effect is so strong that light from the far side of the accretion disk can curve up and over the event horizon, which is why real images and Gloomia's renderings both show a bright ring appearing above and below the dark core rather than just a flat disk edge-on.
What is a tidal disruption event, and does Black Hole Devour represent one?
A tidal disruption event is a real, observed astronomical phenomenon where a star passes close enough to a black hole that gravity stretches it apart, popularly called spaghettification, feeding the wreckage into an accretion disk that flares brightly. Black Hole Devour is styled after that real process, a star torn into a stream and swallowed, but it is a stylized, looping animation rather than a reconstruction of any specific observed event.
What can I customize on Binary Black Holes and Black Hole Devour?
Binary Black Holes lets you tune the orbital separation and speed of the two black holes, recolor the accretion disks, and toggle the gravitational lensing effect on or off. Black Hole Devour lets you adjust the speed and density of the tidal stream, recolor the disk and the doomed star, and toggle the relativistic jets and the lensing independently.
Do I need Gloomia Pro for these two wallpapers?
Yes. Binary Black Holes and Black Hole Devour are both part of Gloomia Pro, alongside the rest of the space collection beyond the three free wallpapers. Every Pro wallpaper, including these two, can be tried live on your own desktop as a watermarked preview before you decide to buy.
Which one should I pick, Binary Black Holes or Black Hole Devour?
Binary Black Holes is the calmer, more ambient of the two: a steady orbital dance that tightens and loosens on a loop, good as a background you can work in front of. Black Hole Devour has a clearer narrative arc, a star stretched apart and consumed before the scene resets, which reads as more dramatic and is better suited to a desktop you want to actually watch.