Why Are Craters Always Round?

Several craters are polygonal.

I will never get over learning fascinating scientific facts and ideas while John's pizza face stares back at me. Truly stellar fashion

Go Go Sci Show!
<Engagement boosting comment>

Very neat!

I was wondering--would y'all consider doing a "state of covid" episode? I feel like all the media I get as an american is the GOP going "no more pandemic! no masking even if you want to!" and the democrats going "eh, sacrifices must be made for the economy," and meanwhile my disabled friends haven't eaten inside a restaurant in three years and sometimes I see articles about new variants and how people are still dying and long covid. I'd just like an unbiased overview.

Pizzamas???

Clever

The question one must ask is why are we calling those craters if there is nothing in the center of it? Of course, you have been lied to again and again... thinking there is a "space" out there... but it is all in your imagination... thank tv and hollywood for that. 99% of our communication goes by underwater cables and land towers... there is nothing out there... the only "satellites" are the devices that go up by balloons... and fall to the ground a few weeks later. The moon is a focal point, like the sun. They are approx. 5.000km from us. The sun doesn't set... it just goes away and comes back. The sun presents electric characteristics, while the moon is magnetic... that's why it doesn't reflect the warm sun, in fact, objects in moon shadow presents higher temperatures than the ones exposed to its rays. Wake up. Too many lies. Time to find the truth instead of parroting HIS-story (or a story that is not ours).

Why are planets anyways , why is you mother always

👍Savannah gets my engaging presenter of the day award!🏆

Wait I need to read more about tilting planets, right now I think if a planet is +- a sphere, does it change its position vs asteroid belt? How so, that now asteroids hit them in different angles even when the planet is technically a sphere... That would imply is not spherical more like an egg and it tilts very fast . But... Until I research more about tilting planets... I'm wrong... Thanks for reading my rampage ❤

I watched a documentary decades ago where they proved crater angles and impacts at Berkeley, where they used a crazy high pressure gun to shoot packed sand.

Fascinating

was just wondering about this a few days ago!

Craters aren't round, they tend to be a rounded hexagonal shape. This is because the energy that creates them goes out in a circular pattern but the material it impacts along with any other irregularities will cause a reflection in part of the wavefront. The result is a hexagon.

Sounds like normalization with anti-tank rounds; the impact on a somewhat plastic surface can pull/redirect the trajectory into the surface.

A big rock going 10 km/s… that'll hurt! I love these videos that give me a new visual understanding of an important aspect of space science. Thank you SciShow for all this great content (especially the space videos).

Even deaper questions is well why do space rock knows only circle

Am I supposed to recognize the face on her shirt or is it some kind of _one off_?

Prove that the impacter came from the asteroid belt. Then prove that time frame.

You weren't there you can't do either and have no proof for either.

I watched this video two days before belatedly watching the Veritasium video from several months ago where he asks these exact questions and wonders why no one thinks about them. That was an experience.

We owe a lot to our moon it seems!

PIZZA

cure your voicecrack ffs

They aren't round it's just pareidolia nothing is perfectly round

soon as an asstroid enters our gravity starts to bend towards us pulling it to be perpendicular but has limited time so the angle remines to a mazmum of 15 degrees thus making an elliptical creators

BIG DUH !!!IF THEY WERE HIT BY SQUARE ROCKS THE CRATERS WOULD BE SQUARE!!!

this woman eats really unhealthy.

Coming from the video about the shape of black holes, I know what that hair tie ...

what a bunch of hogwash.

There was a guy who did a crap ton of research on this. It's a shame you didn't look his stuff up or recognize him for his work.

Why are a lot of craters on the moon look like an octagon or only so deep? And the asteroid belt. Do u think it use to be a planet the blew up?

This is the most ridiculous explanation I have ever seen.
#1 There is no way “5%” of craters are oblong. Every crater formed should be oblong….not a perfect circle as we observe.
And before anyone claims this garbage explanation has weight, please link video evidence of meteors hitting a surface and leaving a perfect circle. No one has every observed this so it’s a THEORY, a completely ignorant theory, but still a theory.
Anyone can do this experiment with rocks hitting the ground. Throw rocks at different speeds and angles and if you get 95% to form perfect circles I will personally pay your house off. 🤦🏼‍♂️🤦🏼‍♂️🤦🏼‍♂️🤦🏼‍♂️

She's so full of crap... Creators are created by plasma magnetic energy fields.. That's why they're always round. If it came from a meteor they would skip an hop and make digs and they do not.. The moon is actually a reflection of the larger Earth.. And it is immense, it is our whole Galaxy. Reflected in the sky it is the earth we walk upon. We live in a reflection reality. Wake up, people..

What about these dome looking things perfectly round, they are everywhere. What are these?

Boombs

How are they hitting the moon if the earth is in the way?

I think it’s interesting that it is 2023, and people say the creators are from asteroids. It’s produced from dust,liquid and heat. Easily demonstrated by making a breakfast pancake. Mix a batter and pour a thin layer on the hot pan and you will see creators.

Pretty similar to volcano mud bubbles.

those are astroid dumb

I asked my grandma once and she said the same reason why I have pimples

All of the moon's craters are abuse from her ex, Meeteo Wright-Schauer

5 per cent of craters are oval in shape. And this happens when the angle the meteor is striking Earth is 15 degrees or less. Is this consistent with math? Yes.
If the direction of a meteor happens to be coming from the direction of the North Pole, the angle will be 15 degrees or less if it strikes the Earth at a latitude of 15 degrees or less. What is the radius of a circle that covers everything north of 15 degrees? cos(15). So, the percentage of meteors that will hit within this circle are:
cos(15) ^ 2 which works out to 0.933 or 93.3 per cent.
So the percentage of meteors that strike within 15 degrees of the equator is 6.7 per cent. Reasonably close to 5 per cent.

Turning the problem around, at what latitude would 95 per cent of meteors strike north of?

acos( sqrt(95) ) = 12.9 degrees

Again, reasonably close to 15 degrees.

If the moon is title locked to earth, how do you get perfectly round craters on the side we can see they should almost all be ovals, at least.

Your next mission if you choose to accept it: why are some craters inverted?

bs

Good video! People also seem to be concerned that craters are the same depth. This is explained is that the impact is basically an explosion and not a penetration. It blasts everything away just like a huge bomb going off. This has been demonstrated by hitting ground with high velocity particles. The depth is the same.

Whats the difference between a bullet (3,000 kph) hitting ground at 45 degree angle and an asteroid hitting? Same shape left?

Great theory! Electrical scaring can also cause the same shape. It's only a assumption that they are all caused by impacts.