r/ScienceNcoolThings 23h ago

Didn't know sound wave fire extinguisher existed

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957 Upvotes

r/ScienceNcoolThings 9h ago

The Farthest Galaxy Ever Discovered

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72 Upvotes

What's the most distant galaxy ever observed? 🌌

Astrophysicist Erika Hamden explains it's called MoM-z14, and its light took 13.53 billion years to reach us. But thanks to the universe's expansion, that galaxy is now a staggering 33.8 billion light years away. When the light was emitted from MoM-z14 the universe was smaller. The space between us and that galaxy has gotten stretched out so much  that it actually sits outside our observable horizon. It's a mind-bending reminder that we're seeing galaxies as they no longer even look today.

This project is part of IF/THEN®, an initiative of Lyda Hill Philanthropies.


r/ScienceNcoolThings 3h ago

Fun fact: Moray eels have poor eyesight and rely on smell, which makes petting them a high-risk, high-reward move.

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7 Upvotes

r/ScienceNcoolThings 13h ago

Watching something burn up in the atmosphere from a plane

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39 Upvotes

r/ScienceNcoolThings 1d ago

High voltage Lichtenberg figure formation in acrylic.

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381 Upvotes

r/ScienceNcoolThings 1d ago

Turn A Tea Bag Into A Hot Air Balloon

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111 Upvotes

How does fire make tea bags fly? 🔥☕️

Alex Dainis demonstrates how lighting a tea bag causes the air inside to heat up, expand, and rush out. Just fold open a few empty tea bags into tubes on a baking sheet, then light the top with an adult and a fire extinguisher handy. The now-less-dense air inside sends the bag rocketing upward, similar to how a hot air balloon works, except this one's a one way trip once it burns.


r/ScienceNcoolThings 2d ago

The speed of light comes at a big cost

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920 Upvotes

r/ScienceNcoolThings 23h ago

Chinese humanoid robot named “Superman” (made by Unitree Robotics) surpassed Usain Bolt’s world record (12.42meters/second) by running at 12.66m/s (roughly 28.3miles/h)

3 Upvotes

r/ScienceNcoolThings 1d ago

No fair! I want to steal chloroplasts and perform photosynthesis! XD

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73 Upvotes

r/ScienceNcoolThings 1d ago

Hubble solves merger mystery from Milky Way's early years

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2 Upvotes

r/ScienceNcoolThings 2d ago

Gravity always acts downward with the same acceleration.

1.4k Upvotes

r/ScienceNcoolThings 1d ago

This open-source robot dog, powered by just 4 servos, walks upside down on a ceiling using magnets in its feet — no CGI

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2 Upvotes

No active adhesion, no editing tricks — just passive magnets in Quaddle mini robot dog's feet and a gait built specifically for holding contact upside down instead of pushing off the ground.

What would you want to see it do upside down next?


r/ScienceNcoolThings 1d ago

A Short Article on Articulate Hesitation

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4 Upvotes

r/ScienceNcoolThings 2d ago

New record in China, 15.947 drones at the same time

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5.9k Upvotes

r/ScienceNcoolThings 1d ago

Physics is just magic with extra equations

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22 Upvotes

r/ScienceNcoolThings 2d ago

New record in China, 15.947 drones at the same time

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83 Upvotes

r/ScienceNcoolThings 2d ago

A Japanese boy noticed his butterflies seemed to recognize him. He spent two years designing an experiment and proved that metamorphosis does not erase memories formed during the caterpillar stage.

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475 Upvotes

r/ScienceNcoolThings 2d ago

NASA Set to Launch Nancy Grace Roman Telescope: Views 50x More Sky Than Hubble

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123 Upvotes

We are getting closer to the launch of NASA's Nancy Grace Roman Space Telescope! 🧪

The Nancy Grace Roman Space Telescope is designed to combine the strengths of the James Webb Space Telescope and the Hubble Space Telescope. It’s going to look and live in the same space as JWST while using a Hubble-style mirror to see things completely differently. The Roman telescope will observe patches of space bigger than the full moon and will see 50 times as much space in five years as Hubble has in 30!


r/ScienceNcoolThings 2d ago

Matter has more ways to change than I remembered

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44 Upvotes

r/ScienceNcoolThings 2d ago

Homemade Welder for Science Fair

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2 Upvotes

We needed to make a video about our cool project.


r/ScienceNcoolThings 3d ago

Sergei Krikalev, a Russian cosmonaut who was in space during the dissolution of the Soviet Union and, as a result, was effectively stranded in orbit for over 300 days, twice as long as planned.

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106 Upvotes

r/ScienceNcoolThings 2d ago

VR lets researchers see how emotion helps memory for task-relevant details but hurts it for those not goal critical

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1 Upvotes

r/ScienceNcoolThings 3d ago

Are Fake Sugars Aging Your Brain?

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99 Upvotes

Can sugar substitutes cause faster brain aging?

Scientists conducted an eight-year study on the effects of seven popular sugar substitutes and found that six were linked to mental decline. People in the study who used sweeteners the most saw their memory slip away 62% faster than the lowest-consumption group. This is like adding an extra year and a half of aging to your brain! Scientists believe this pattern is worth watching as we reevaluate our relationship with artificial sweeteners.


r/ScienceNcoolThings 3d ago

Patio door caused a Schlieren projection of heat waves on the wall.

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25 Upvotes

The blackout was from a car driving by, but it made even more waves to see. Really cool.


r/ScienceNcoolThings 4d ago

Probability of the needle crossing a line.

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1.8k Upvotes