Technologies

This Is What Might Happen if an Asteroid Crashed Into Your Town

An online simulator lets you launch an asteroid at a locale of your choosing and ponder the potential outcome.

If an asteroid made of pure gold, with a diameter of 2,600 feet and blasting at 77,000 miles per hour, came in at an angle of 48 degrees and hit New York City’s Upper East Side, aka around where I live, I unfortunately now know what would happen.

Myself and 6,363,353 people would be vaporized within the space rock’s resulting crater, a massive chasm over half a mile deep. The shard would release more energy than the last volcanic eruption of Yellowstone, a colossal disaster that, thousands of years ago, spewed ash, magma and debris far enough to cover most of the continental United States.

Or at least that’s what I learned from an asteroid simulation website this afternoon while sipping on a cup of coffee.

The Asteroid Launcher is a free, data-driven concept created by Neal Agarwal, a developer widely known by his online persona: neal.fun. Agarwal’s goal is basically to blend immense arrays of data and interesting mental dilemmas to form clever, interactive online thought experiments, like this one that tells you what kind of devastation would follow an asteroid smashing into your town.

«The main inspiration,» Agarwal told me over email, «was definitely growing up watching movies like Deep Impact and Armageddon! I’ve always wanted to have an online tool that would let me test out different impact scenarios and see the effects.»

But of course, the key here with Asteroid Launcher lies in Agarwal’s pseudonym.

There are thankfully no known significant impact threats for the next hundred years or more, according to NASA — and, worst case, the agency is well on its way toward generating a sort of asteroid defense system with the resounding success of its DART mission, which took place earlier this year.

Still, it doesn’t hurt to cater to our intrusive thoughts once in a while. Just for fun.

Peruse Agarwal’s projects and you’ll find an awesome array of rabbit holes to get lost in.

The Size of Space progressively presents you with larger and larger objects, starting with an astronaut and making its way through stars so enormous they make our sun look like a feeble yellow pom-pom. Spend Bill Gates’ Money offers you $100 billion to spend on items ranging from a 12 pack of Coca-Cola all the way to a literal Boeing 747 commercial airplane. It shows you how much money multibillionaires are working with day to day.

And my personal favorite, Absurd Trolley Problems takes you on an illustrative, ethical journey based on English philosopher Philippa Foot’s fictional scenario where an onlooker has the choice to save five people in danger of being hit by a trolley — except the only way to save them is by killing one person in their stead. The hard part about this isn’t so much the decisions, but the fact that you should, hypothetically, remain consistent in every one of those decisions.

«I’ve kept a big ideas list since I was 16, and have recently passed 1,000 project ideas written down (most of them terrible),» Agarwal said. «The ideas can come from everywhere, from books and movies to a conversation with a friend. I think the important thing is writing them down and being as open as possible to new and weird ideas. Sometimes two to three bad ideas can combine and form a great project.»

Which brings us to Agarwal’s latest endeavor: Asteroid Launcher.

You begin by designing your own asteroid, entering a material, rock diameter, speed and impact angle. Then, you can select any location on a realistic map to the left of the screen. All that remains, at that point, is to click a giant button that says LAUNCH ASTEROID.

Boom.

You arrive at a page that tells you, theoretically, what you’ve just done to your location of choice.

These results are surprisingly detailed, as Agarwal embedded his code with asteroid information gleaned from academic science publications, such as a doctoral thesis about asteroid impact risk and a peer-reviewed population vulnerability model authored by experts from NASA, Lancaster University and the University of Southampton.

However, it does appear that some question the results of Asteroid Launcher — one scientist, for instance, tweeted his preference for the more old-school Earth Impact Effects Program to satisfy doomsday cravings.

Though, to that end, Agarwal says the Earth Impact Effects Program uses the same equations as Asteroid Launcher because both are based on a research paper written by Gareth Collins, an asteroid impact expert at Imperial College London. «They’ll give pretty much the same results,» he explained, noting that Clemens Rumpf, an asteroid risk expert who formerly worked at NASA, also contributed to his project.

«The goal of neal.fun is to bring back the weird and fun internet!» Agarwal said. «I grew up at a time when the internet was full of strange and fun flash games and experiments, and watched that all slowly go away as social media took over. Now the web is finally becoming powerful enough again to create fun digital experiences, and I’m excited to keep exploring the potential with new projects.»

On Asteroid Launcher, once you’ve pressed the big red button, scroll down a little, and you’ll catch far more than fatalities spurred by your asteroid design.

Agarwal tells you how many gigatons of TNT your explosion equaled, how many people would receive second-degree burns if your asteroid was closer to a huge fireball, the radius within which peoples’ eardrums would rupture from the shock wave and within which homes would be completely leveled from wind speeds upon impact.

It’s darkly obsessive to check out as many asteroid designs as you can. Immediately after making my dream gold impactor, I plugged in the stats of the asteroid that NASA’s DART spacecraft punched into in an attempt to change the relatively small space rock’s orbit around a larger hunk of space rock.

I couldn’t get things to be completely accurate, because this is so theoretical, but here’s what I came up with.

Dimorphos is considered to be made of «rubble,» aka a bunch of materials, so for material, I went with generic stone. It’s actually about 525 feet in diameter, but Asteroid Launcher requires some rounding. I put in 500 feet. As for speed at time of impact, a parameter we don’t know, I popped in the speed at which the DART spacecraft hit the rock, because, well, why not? That came out to something like 14,400 miles per hour, which had to be rounded as well. I set the location to London and angle to 90 degrees for no reason whatsoever.

Here’s what we got for results — they’re much less shocking than my first ridiculous, gleaming monster asteroid.

My next plan was to input the parameters of the dinosaur-killer asteroid, Chicxulub. But get this: It was so gigantic it didn’t even fit in the diameter section.

«Asteroid impact science is still an evolving field and not everything is known yet,» Agarwal said. «Generally the larger the asteroid, the more uncertain we are about the effects.»

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WWE 2K25 Jumps From the Top Rope Onto PlayStation Plus in September

Subscribers will also be able to play a turn-based strategy Persona game.

«The American Nightmare» Cody Rhodes, son of one of the greatest pro wrestlers of all time, «The American Dream» Dusty Rhodes, is the current undisputed WWE champion. And PlayStation Plus subscribers can bring Rhodes down a peg or help establish a new wrestling dynasty with the champion beginning on Sept. 16 in WWE 2K25.

PlayStation Plus is Sony’s version of Xbox Game Pass, and it offers subscribers a large and constantly expanding library of games. There are three PlayStation Plus tiers — Essential ($10 a month), Extra ($15 a month) and Premium ($18 a month) — and each gives subscribers access to games. However, only Extra and Premium tier subscribers can access the PlayStation Plus Game Catalog.

Here are all the games PS Plus Extra and Premium subscribers can access starting on Sept. 16. You can also check out the games all PS Plus subscribers can play in September, including Psychonauts 2.

Don’t miss any of our unbiased tech content and lab-based reviews. Add CNET as a preferred Google source.

WWE 2K25

Take control of your favorite superstar from the men’s and women’s divisions in this knockdown, dragout wrestling game. Become one of over 300 wrestlers from today and years past, like Rhea Ripley and Andre the Giant. This entry in the series also introduces intergender wrestling matches, barricade diving and new brawl environments where you can get over or turn heel.

Persona 5 Tactica

Join the Phantom Thieves in this real-time strategy game set in the Persona universe. You and the group wander into a bizarre realm where people are living under tyrannical oppression, and you cross paths with a revolutionary named Erina. Now you’re in cahoots with the rebels as you try to free an oppressed people and find your way back home.

Other games on PS Plus

Those are a few of the games Sony is bringing to PlayStation Plus, and subscribers can play these games as well starting on Sept. 16.

*Premium subscribers only.

For more on PlayStation Plus, here’s what to know about the service and a rundown of PS Plus Extra and Premium games added in August. You can also check out the latest and upcoming games on Xbox Game Pass and Apple Arcade.

Technologies

Little Nightmares 3 Hands-On: a Creepy Co-Op Game Arriving Just in Time for Halloween

The sequel adds cooperative play with all the haunting hallmarks of the earlier games.

After about an hour playing Little Nightmares 3, I’d used a person’s bisected halves to solve a puzzle, gotten a high score in a carnival shooting game and escaped the murderous claws of a deranged baby. As a 2-foot-tall youth trying to survive the morbid dangers of one demented area after another with my co-player, I was terrified and delighted.

I’ve only sampled the first two Little Nightmares games, but in my brief preview of Little Nightmares 3, it felt like a refined version of the series’ premise: small protagonists endangered by a large, grim world filled with traps to evade, puzzles to solve and horrid, lethal enemies to outwit. Take the scale of the animated horror movie 9, mix it with the darkest of stop-motion director Henry Selick’s maudlin settings and let players enjoy the haunting ride, room by perilous room.

This time, players aren’t alone. In Little Nightmares 3, developed by Supermassive Games, two players (or one and an AI companion) choose between characters Low (a bird-masked boy with a bow) and Alone (a girl with a jumpsuit and a wrench), who rely on each other and get out of rooms using their unique tools or just good ol’ fashioned teamwork. Sometimes this means pushing a box for the other to jump on, but other obstacles require rather complex puzzle-solving.

In the game, Low and Alone seek to escape the bleak Nowhere and its roulette of dystopian lands. My preview was limited to one of these areas — Carnevale, a demented circus where our small characters had to sneak under the feet of grotesque, ambling workers (or their corpses, tied up or swinging for the sport of their fellows). When we thought we were safe, possessed puppets sprinted after us until we could team up to knock their wooden heads off and crush them. Being noticed by anyone meant our demise, requiring frantic cooperation amid the anxious stakes of rather gruesome deaths.

It’s this tension and the dour setting that sets Little Nightmares 3 apart from other co-op games like the more excitable and dynamic Split Fiction released earlier this year, a rollercoaster flipbook of game genres that made for a breathless if not terribly coherent experience. In contrast, the section of Little Nightmares 3 I played unfolded like a series of grim vignettes that rely on its pleasingly goth trappings as much as working together with your friend (or computer teammate) to progress.

Surviving your little nightmares

While I got only an hour with the game, Little Nightmares 3 seems to iterate on rather than innovate away from its predecessors: Expect more of the same in new, grotesque settings, just with the welcome addition of tightly designed teamwork dynamics. For fans of the series, this is likely a good thing. There’s not much else like Little Nightmares.

The Carnevale stage I played through opened up with rain pelting red-and-white circus tent tops, which I as the masked Low (and someone from Bandai Namco who kindly played as the jumpsuit-wearing Alone) skittered between. Lumbering above us were brutish factory workers seeking escape at the funfair, which very quickly turned sinister as we very shortly saw some hanging tied-up as others took turns beating them like a piñata. We entered one room to find one worker in connected boxes as the subject of a magician’s saw-in-half trick…which was no trick, as we had to separate the halves to climb out of a window. I tried, and failed, to ignore the viscera slopping out of the boxes.

While we hid from the human-size enemies, we had to fight the wooden puppets. Like Geppeto’s most horrid creations, they ambushed us in several rooms, requiring me to knock their heads off with Low’s bow and run away from their decapitated bodies while my teammate rushed forward to crush their heads with Alone’s wrench.

But most of the rooms are about solving puzzles, which could be as simple as moving a box for my teammate to jump up and pull a switch or figure out how a radio plays into a complex solution. While these quiet moments are a nice break from the tense combat or pursuit, they also give time to appreciate the macabre backgrounds: I ran past one room with a circle of empty tall chairs only to come back a few seconds later to find them filled with puppets, unmoving but watching.

And then there are the really, really tense moments. We moved from the carnival to the adjoining candy factory (apparently where all those brutes work) and up to the offices where the boss works, to find him asleep with the TV droning on in the darkness…and his frankly hideous baby nestled next to him. Naturally, we had to make noise, cranking open a grate, awakening the terrifying spawn who ran after us. After many, many failed escapes, my teammate and I discovered we had to scramble for a hiding place after making it past the grate.

This was perhaps the most frustrating part of the preview as we panicked looking for a solution to our deadly woes (as opposed to the slow, methodical gameplay earlier) — but that’s part of the tension, especially when adding a teammate to the mix. Ultimately, it was a hard-won lesson in patience. In the next room, a kitchen, the nightmarish baby banged a bowl on the table until the father walked over to a corpse (presumably his worker) and cut out some meat for his ghoulish child to eat.

In my short time with it, Little Nightmares 3 seems like a cooperative spooky storybook for players and their friends (but not couch buddies, sadly — it’s online co-op only) to experience. How much it lives up to previous games in the series, especially as developer Supermassive Games takes more of the reins from the franchise’s original creators Tarsier Games, is anyone’s guess. (Tarsier’s similar spiritual sequel to Little Nightmares, Reanimal, is coming in 2026.)

But as the air turns crisp and Halloween beckons, it’s the best time of the year for a creepy co-op game like Little Nightmares 3 to land.

Little Nightmares 3 comes out Oct.10, 2025, for PC, PS4, PS5, Xbox One, Xbox Series X/S, Nintendo Switch and Nintendo Switch 2.