Update: New BLACK HOLE badge - and more!

Thanks Yechidoth! I think there might be like one or two others who have obtained Maelstrom (at one point someone had Herculean in their showcase which at this point Maelstrom is a prerequisite of) but you're definitely the only one I know to actually display and keep it in your showcase. Also I don't think they've bumped up Atlas/Artemis just yet, as they are both Mastery Skills rather than Proficiency, but they probably will soon at this point.

Ah, I don't know how many mastered skills I have, so it's probably less than 5,000. I've seen those who had Atlas (but an old version of Atlas, 500 skills or 1,000, if I remember correctly). I've never seen anyone with Artemis or Herculean, but maybe it's an old version too? the As at that time, the total number of skills wasn't yet 5,000

They increased as more skills were added to KA. Atlas went from 500 to 2000 to 5000, while Artemis went from 750 to 3000 to 7500. I think the guy with the old Atlas badge was Ben Eater. And yeah, this was back when there were only some hundred KA skills.

I'm level 75 now, how long did it take you from getting from there to 100?

I'm not at 100 yet, but I can tell you it sure took a while to get to 54 😅

Hmmm, that's very interesting, I have theories, maybe it's like you said, Atlas and Artemis are badges that require mastery and not just proficiency, that would make sense

Or they are also proficiency, because Herculean says in the description that it is proficiency in all skills (probably has something to do with the fact that many skills only go to proficiency, not all skills are possible to master).

If the second theory is true... now that the Maelstrom is very close to the Atlas, maybe the Atlas is equal to level 125 now? That would be 7,750 skills... and Artemis might be level 150 (11,175)

Or, I don't know, it's something else entirely, like getting 100% in 100 course challenges?

The other black hole badges are also very interesting. Are there others that people don't even know exist, like the Herculean? I mean, more unlisted black hole badges

Moderator Laurie @KA said 7 months ago that the analysis team had around 7,000 skills... so now it's a bit more, something around 7,100~7,200 or so, I think? Or even more

So the total number (Herculean) might be lower or higher than Atlas and Artemis, because they're always fluctuating.

Yechidoth Taw Immodicus are there any secret courses that give a lot of skills?

Howdy Matthew G, it took me around 6 months to get from Level 60 to 100, right now I'm Level 101 (60/101)

Here's the formula for calculating your exact number of proficiency skills (I dunno how many skills I have mastered, only proficiency ones)

[ (Your level/2) x (Your level+1) ] - Your Level + number of skills in the actual level = Total number of skills

So mine is: [ (101/2) x (101+1) ] - 101 + 060 = 5,110 proficient skills

Yep there are lots of unlisted courses actually

Here is a list of all Black Hole Badges:

Tesla- Easiest to obtain, reach 10 million Energy Points. This would have been pretty easy had not KA retired all those Energy Point farming badges like 299792458 m/s lol.

Atlas- Achieve mastery in 5000 (was 500) unique skills. Finally possible, as there are now slightly over 5000 skills in KA. Still extremely hard though.

Artemis- Achieve mastery in 7500 (was 750) unique skills. Still impossible.

Galileo (hidden)- Create 3000 (was 2000) videos. Only Sal Khan currently has this achievement to my knowledge, but some other devs are getting close.

Herculean (hidden)- Achieve proficiency in all KA skills to date. Near impossible, as there are just over 5000 skills in KA right now, but if you really tried, you could get it.

Is Sal (hidden)- Be Sal Khan. This always seemed unfair to me. It's literally impossible to get. Thankfully if you somehow got the other 5, you could stock your showcase full of BH badges without needing this one. Also, rumor has it that this badge gives 100 million Energy Points, automatically awarding Tesla to Sal as well.

Maelstrom- Reach Level 100, which requires proficiency in 4950 skills. This is possible but difficult.

Yeah you have to really look around to find those hidden courses.

are there any other country specific curriculums other than brazil, the Philippines, and India

also, how does Khan academy completionist web extension work, I have it but all that shows up is a small purple gaming controller button in the bottom right corner.

Yeah Galileo is impossible for normal users, Is Sal obviously also, but Herculean.. is the most curious one in my opinion, it's always changing and I dunno if it's possible or not, by definition if Herculean is possible to attain, would be below Artemis right now ( If the total number of skills that was 7,000 didn't surpass 7,500 from 7 months ago )

Herculean is attain proficiency in all skills to date, so if you have 100% KA proficiency once, you'll get it. Also I don't think Artemis is possible just yet, but it's close.

Oh that extension show all math skills, if you click on the controller will show many math courses, some hidden, if you click on the course's name you'll be redirected fo said course.

Note: this extension is old and many unlisted course doesn't show there anymore. You have to search them manually like a crawler or something (don't do illegal things guys).

Sounds good. I'll check that out in a moment.

nothing happened when i clicked it for some reason

Hmm something's wrong, the extension should open a window with a course list when u click the controller icon, maybe even that doesn't work anymore cuz the site changed so much since the extension's creation.

It's possible. I can't even find the icon.

Theory: Artemis will coincide, perhaps on purpose, with the start of the Artemis 2027 space program, so it will probably be possible to obtain this medal around 2027.

Atlas is the sky, "Standing on the shoulders of giants"

Artemis is the space.. The sky is the limit?

Hmmm... interesting theory. If KA is spreading out course additions like that on purpose, then they have a very interesting way of doing things for sure. There's still only like 7100-7200 available courses, so as long as they only add one new skill every couple days on average the spacing will be enough for that kind of delay.

It has been 50 weeks! Furnace is now obtainable!

Yeah! I got it also.

Got mine today as well!

I had a good streak going but I took a break for a bit too long lol. Just hit week 11. Can't complain much, someone needs to keep Endgame updated 😉

very nice, here's mine as well:

Supersonic Seven the endgame you mean like, the AP®︎ Courses?

No I mean AD: Endgame the web game lol but yeah working on those AP® courses as well.

OOh yeah, I just checked it, antimatter stuff, I like Cookie Clicker and Cell to Singularity too.