Black Hole Ones 5 28

Black Hole Ones 5 28
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A new study theorizes that primordial black holes formed after the Big Bang (the far left panel) constitute all dark matter in the universe. At early epochs they cluster and seed the formation of early galaxies and then eventually grow by feeding off gas and merging with other black holes to create the supermassive black holes seen at the center of galaxies like our own Milky Way today. (Credit: Yale and ESA)
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Primordial black holes created in the first instants after the Big Bang — tiny ones smaller than the head of a pin and supermassive ones covering billions of miles — may account for all of the dark matter in the universe.
That’s the implication of a new model of the early universe created by astrophysicists at Yale, the University of Miami, and the European Space Agency (ESA). If proven true with data from the soon-to-launch James Webb Space Telescope, the discovery would transform scientists’ understanding of the origins and nature of both dark matter and black holes.
Dark matter — which has never been directly observed — is thought to constitute the majority of matter in the universe and act as the unseen scaffolding upon which galaxies form and develop. Physicists have spent years testing a variety of dark matter candidates, including hypothetical particles such as sterile neutrinos, Weakly Interacting Massive Particles (WIMPS), and axions.
Black holes, on the other hand, have been observed. A black hole is a point in space where matter is so tightly compacted it creates intense gravity. Not even light can resist its pull. Black holes are found at the centers of most galaxies.
The new study, accepted for publication in The Astrophysical Journal, harkens back to a theory first proposed in the 1970s by physicists Stephen Hawking and Bernard Carr. At the time, Hawking and Carr argued that in the first fraction of a second after the Big Bang, tiny fluctuations in the density of the universe may have created an undulating landscape with “lumpy” regions that had extra mass. These lumpy areas would collapse into black holes.
Although the theory did not gain traction within the wider scientific community — the new study suggests that, if modified slightly, it could have explanatory power after all.
If most of the primordial black holes were “born” at a size roughly 1.4 times the mass of Earth’s sun, they could potentially account for all dark matter, said Yale professor of astronomy and physics Priyamvada Natarajan, the paper’s theorist.
Natarajan and her colleagues say their new model shows that the first stars and galaxies would have formed around black holes in the early universe. Also, she said, primordial black holes would have had the ability to grow into supermassive black holes by feasting on gas and stars in their vicinity, or by merging with other black holes.
“ Primordial black holes, if they do exist, could well be the seeds from which all supermassive black holes form, including the one at the center of the Milky Way,” Natarajan said.
“ What I find personally super exciting about this idea is how it elegantly unifies the two really challenging problems that I work on — that of probing the nature of dark matter and the formation and growth of black holes — and resolves them in one fell swoop,” she added.
The James Webb telescope’s mission will be to find the first galaxies that formed in the early universe and see stars forming planetary systems.
The new study’s first author is Nico Cappelluti, a former Yale Center for Astronomy & Astrophysics Prize postdoctoral fellow who is now an assistant professor of physics at the University of Miami. Günther Hasinger, ESA’s director of science, is the study’s second author.
“ Our study shows that without introducing new particles or new physics, we can solve mysteries of modern cosmology from the nature of dark matter itself to the origin of super-massive black holes,” Cappelluti said.
Primordial black holes also may resolve another cosmological puzzle: the excess of infra-red radiation, synced with X-ray radiation, that has been detected from distant, dim sources scattered around the universe. Natarajan and her colleagues said growing, primordial black holes would present “exactly” the same radiation signature.
Best of all, the existence of primordial black holes can be proven — or disproven — in the near future, courtesy of the James Webb Space Telescope and ESA’s Laser Interferometer Space Antenna (LISA) mission announced for the 2030s.
If dark matter is comprised of primordial black holes, more stars and galaxies would have formed around them in the early universe — precisely the epoch that the James Webb telescope will be able to see. LISA, meanwhile, will be able to pick up gravitational wave signals from early mergers of primordial black holes.
“ If the first stars and galaxies already formed in the so-called ‘dark ages,’ Webb should be able to see evidence of them,” Hasinger said.
Natarajan added, “It was irresistible to explore this idea deeply, knowing it had the potential to be validated fairly soon.”
Fred Mamoun: fred.mamoun@yale.edu , 203-436-2643
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Control your black hole, eating up everything on your way. The bigger you get, the larger structures you are able to suck in. Keep an eye on the opponents’ size, too. They can eat you.
Absorb everyone into your black hole in the new game - Hole.io
Control your round hole and consume everything on your path: cars, houses, people! Engage in battles with other
holes in the same city. Grow bigger and more powerful but beware of other players & their holes may be bigger than
yours and pull you in.
This game literally sucks you in! Try to become the biggest in the city.
The gameplay is very easy to get into: all you need to do is move the hole around and let various objects drop into it and disappear into the unknown. The trick is to only go under the objects that can fit inside: start with consuming pedestrians, poles and bushes, move on to cars and ultimately to large buildings. You can also eat other black holes if they are smaller than you.
The game takes place in a city area, so the map is comprised of office buildings, apartment complexes, parking lots, roads parks and many other areas usually associated with urban environment. The surroundings are instantly familiar to anyone who has ever seen a big city, so they are pretty easy to navigate. The best game strategy is to plan your way around the areas in advance: think of the most efficient route that will give you enough smaller objects in the beginning and will eventually introduce something bigger and bigger to chew on.
Each round only takes a couple of minutes, so don’t get discouraged if you don’t win right away: once you’ve familiarized yourself with the level and the mechanics you will become the master of Hole.io in no-time!
In this rather unique combination of arcade and puzzle there are lots of little things you can do to outsmart the competition and best every single one of your opponents. Here’s a basic list of effective moves and helpful tips.
Since the main mechanic is physics-based it is important to adjust your movement when trying to consume an object. Let’s say you want to eat some traffic lights: sometimes sliding under a vertical pole makes it fall in an unwanted direction and ultimately drop flat on the floor horizontally, thus preventing you from being able to eat it. To prevent that from happening you might want to slow down just a bit or move slightly backwards once the pole start moving in an unwanted direction.
It is possible to get larger objects and buildings fall in even if your hole is not big enough: simply place yourself under one of the edges of the object for it to start leaning into the singularity and then move slowly towards its other end gradually consuming the rest.
It may be more important to swallow more smaller stuff than fewer big structures. It is common to feel inclined to try and consume huge buildings once the hole gets big enough, however it is a bit of a risk because it’s possible to underestimate the size of an object. If it won’t fit inside, you will end up wasting your time. Instead spend some time adjusting to your new size by going for smaller prey.
If you have been having trouble making it to the top of the score board and besting other players, these tips will hopefully help you overcome some of the major difficulties. Ultimately, we tend to produce best results after entering that focused meditative flow state of mind, but you need to become really comfortable and familiar with the game in order to achieve it. Good luck becoming the best at Hole.io!

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Our go-to Black Hole® Duffel. This 55-liter workhorse organizes your gear and has enough space for a fun-hog weekend or a well-organized extended trip. Made with 100% recycled body fabric, lining and webbing.
Made from lightweight yet extremely durable, 100% recycled polyester ripstop with a TPU-film laminate to create a fabric that’s weather-resistant, abrasion-resistant and highly packable; lined with 100% recycled polyester with a tough polyurethane coating
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Padded, removable shoulder straps let you carry the Black Hole® Duffel like a backpack and can be detached when not in use; reinforced haul handles withstand overzealous baggage handlers
A zippered side pocket can be reached from the outside or inside of the bag; a mesh interior lid pocket keeps essentials organized and close at hand
Padded base protects the contents of the duffel from rough terrain and hard knocks
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1165 g (2 lbs 9.1 oz) 26.7" x 15.7" x 11.8" 55L (3356 cu in)
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