The Craziest Experiment Humans Have Ever Built

Cleo Abram January 20, 2026
Video Thumbnail
Cleo Abram Logo

Cleo Abram

@cleoabram

About

Video journalist making optimistic tech explainers. Huge If True. Instagram: https://www.instagram.com/cleoabram TikTok: https://www.tiktok.com/@cleoabram Twitter: https://twitter.com/cleoabram If you'd like to sponsor a Huge If True episode, reach out at the email below. If you're looking for my bio, here it is: Cleo Abram is a video journalist who produces Huge If True, an optimistic show about science and technology. Huge If True is an antidote to the doom and gloom, helping a wide audience see better futures they can help build. In each episode, Cleo dives deep into one innovation that could shape the future. She has explored humanoid robots at Boston Dynamics, supersonic planes at NASA, quantum computers at IBM, the Large Hadron Collider at CERN, and more. Previously, Cleo was a video producer at Vox and directed for Explained on Netflix. She was the host of Vox’s first ever daily show, Answered, as well as co-host of Vox’s YouTube Originals show, Glad You Asked.

Video Description

This machine found something scientists thought was impossible… If you want to talk to Mico, go to this link: https://bit.ly/CleoAbram-Copilot In the middle of the desert, miles from any city, are two HUGE concrete tubes. They’re part of a giant machine running the most precise experiment humans have ever built… Each tube is 4 kilometers long, and inside there’s a big metal pipe. And at the end of each pipe, scientists place some of the smoooooothest mirrors ever made. And then they fire a powerful laser that gets split down each tube, bouncing it back and forth… building up more and more power… until… they bring those beams back together… to discover something that just 100 years ago scientists thought was impossible to find! Finding it took hundreds of scientists and over a billion dollars. But what did we find?? And what’s the cutting edge we’re finding NOW that makes those scientists want to build… AN EVEN BIGGER ONE? Let me show you… Chapters 00:00 What's the most precise experiment humans have built? 01:41 How do we know what’s out in the universe? 02:33 What if two stars collide? 03:41 What are gravitational waves? 6:34 What's inside the concrete tubes in the desert? 5:50 How did they build the Laser Interferometer Gravitational-Wave Observatory? 07:42 How does the laser experiment work? 09:20 What's the LIGO dance? 11:14 What are the most reflective mirrors in the world? 14:02 What happened when they turned on the laser machine? 15:17 Did we detect gravitational waves? 16:16 Can we manipulate gravity? 17:44 :) You can find me on Instagram here: https://www.instagram.com/cleoabram On TikTok here: https://www.tiktok.com/@cleoabram Or on Twitter here: https://twitter.com/cleoabram Bio: Cleo Abram is an Emmy-nominated independent video journalist. On her show, HUGE* If True, Cleo explores complex technology topics with rigor and optimism, helping her audience understand the world around them and see positive futures they can help build. Before going independent, Cleo was a video producer for Vox. She wrote and directed the Coding and Diamonds episodes of Vox’s Netflix show, Explained. She produced videos for Vox’s popular YouTube channel, was the host and senior producer of Vox’s first ever daily show, Answered, and was co-host and producer of Vox’s YouTube Originals show, Glad You Asked. Additional reading and watching: - LIGO: https://www.ligo.caltech.edu/page/learn-more - Paper on First Gravitational Wave Detection: https://arxiv.org/abs/1602.03837 - Einstein's Theory of Gravitation: https://www.cfa.harvard.edu/research/science-field/einsteins-theory-gravitation - Advancements to LIGO: Quantum Squeezing: https://www.ligo.caltech.edu/news/ligo20231023 - Advanced LIGO Documentary “LIGO”: https://www.youtube.com/watch?v=dX4vCNi544w - Caltech, “LIGO: The First Observation of Gravitational Waves”: https://youtu.be/wrqbfT8qcBc?si=39S3-hcXpU6Dwiyg - Physics Girl, “I Visited the First Gravitational Wave Detector! LIGO | STELLAR”: https://youtu.be/jtp71NT0GNg?si=6BUilmCISXlwN8qr - Veritasium, “The Absurdity of Detecting Gravitational Waves”: https://youtu.be/iphcyNWFD10?si=DFZYSAIyW90oIoNe - Caltech “How Squeezing Light Reduces Uncertainty in LIGO's Measurements”: https://youtu.be/q5lnamXhnfI?si=QrbgPVHwkYs1CEip Vox: https://www.vox.com/authors/cleo-abram IMDb: https://www.imdb.com/name/nm10108242/ Gear I use: Camera: Sony A7SIII Lens: Sony 16–35 mm F2.8 GM Audio: Sennheiser SK AVX and Zoom H4N Pro Music: Musicbed, Tom Fox Follow along for more episodes of HUGE* If True: https://www.youtube.com/cleoabram?sub_confirmation=1 — Hey, welcome to the joke down low! What did Gravity say to Light? Nothing, it just waved! Find a way to use “wave” in a comment to let me know you’re a real one who made it to the end of the description :)

Upgrade Your Everyday

AI-recommended products based on this video

Loading...
Kasa Smart Outdoor Smart Plug by TP-Link (KP400) - Smart WiFi Outlet with 2 Sockets, IP64 Waterproof, Works with Alexa and Google Home, 2.4GHz WiFi Required, No Hub Required, Sunset & Sunrise Offset

Kasa Smart Outdoor Smart Plug by TP-Link (KP400) - Smart WiFi Outlet with 2 Sockets, IP64 Waterproof, Works with Alexa and Google Home, 2.4GHz WiFi Required, No Hub Required, Sunset & Sunrise Offset

(28,846)
$21.99$17.99
FREE delivery Wed, Aug 20 on your first order
1K+ bought in past month
Loading...
Wireless Earbuds, Bluetooth 5.4 Headphones with 50H Playback, Deep Bass Stereo Ear Buds Clear Calls with LED Power Display, Wireless Headphones with Noise Cancelling Mic for Phone/Laptop, Carbon black

Wireless Earbuds, Bluetooth 5.4 Headphones with 50H Playback, Deep Bass Stereo Ear Buds Clear Calls with LED Power Display, Wireless Headphones with Noise Cancelling Mic for Phone/Laptop, Carbon black

(3,184)
$27.99
FREE delivery Mon, Feb 16 on your first order
Loading...
Wireless Earbuds Bluetooth 5.4 Headphones, Noise Canceling Ear Buds with 75hr Playtime, LED Power Display, IPX7 Waterproof Earphones Over Ear Earphones for Sports/Workouts

Wireless Earbuds Bluetooth 5.4 Headphones, Noise Canceling Ear Buds with 75hr Playtime, LED Power Display, IPX7 Waterproof Earphones Over Ear Earphones for Sports/Workouts

(87)
$29.99
FREE delivery Fri, Feb 13 on your first order
300+ bought in past month
Loading...
Monster Open Free AC100 Open Ear Bluetooth 5.3 Headphones, Wireless Earbuds with Earhooks, Immersive Stereo Sound by 16mm Large Driver, Clear Calls, 30H Playtime, for Workout

Monster Open Free AC100 Open Ear Bluetooth 5.3 Headphones, Wireless Earbuds with Earhooks, Immersive Stereo Sound by 16mm Large Driver, Clear Calls, 30H Playtime, for Workout

(17)
$29.99
FREE delivery Mon, Feb 16 on your first order
Loading...
Wireless Earbuds, Sports Bluetooth Headphones, 80Hrs Playtime Ear Buds with LED Power Display, Noise Canceling Headset, IPX7 Waterproof Earphones for Workout/Running Rose Gold

Wireless Earbuds, Sports Bluetooth Headphones, 80Hrs Playtime Ear Buds with LED Power Display, Noise Canceling Headset, IPX7 Waterproof Earphones for Workout/Running Rose Gold

(284)
$39.99
Prime
100+ bought in past month
Loading...
Brita Stainless Steel Premium Filtering Water Bottle, BPA-Free, Reusable, Insulated, Replaces 300 Plastic Water Bottles, Filter Lasts 2 Months or 40 Gallons, Includes 1 Filter, Carbon - 20 oz.

Brita Stainless Steel Premium Filtering Water Bottle, BPA-Free, Reusable, Insulated, Replaces 300 Plastic Water Bottles, Filter Lasts 2 Months or 40 Gallons, Includes 1 Filter, Carbon - 20 oz.

(2,652)
$81.37$76.36
FREE delivery Sep 29 - Oct 2
Loading...
Simple Modern Filtered Water Bottle | Insulated Stainless-Steel Carbon Filter Travel Water Bottles | Reusable for Clean Drinking Water On The Go | 24oz, Sea Glass Sage

Simple Modern Filtered Water Bottle | Insulated Stainless-Steel Carbon Filter Travel Water Bottles | Reusable for Clean Drinking Water On The Go | 24oz, Sea Glass Sage

(26)
$30.13
FREE delivery Tue, Sep 23 on your first order
Loading...
FITVII Health & Fitness Tracker (Answer/Make Calls), Smart Watch with 24/7 Heart Rate and Blood Pressure, Sleep Tracking Monitor, 120+ Sport Mode Activity Tracker

FITVII Health & Fitness Tracker (Answer/Make Calls), Smart Watch with 24/7 Heart Rate and Blood Pressure, Sleep Tracking Monitor, 120+ Sport Mode Activity Tracker

(198)
$59.99
FREE delivery Sun, Aug 10
100+ bought in past month
Loading...
AYATAHA AYATAHA Smart Watch for Kids, Smartwatch Fitness Tracker for Boys Girls, Children's Activity Watch 37 Sports Modes SMS Notification, HD Full Touchscreen IP67 Waterproof, Blue

AYATAHA AYATAHA Smart Watch for Kids, Smartwatch Fitness Tracker for Boys Girls, Children's Activity Watch 37 Sports Modes SMS Notification, HD Full Touchscreen IP67 Waterproof, Blue

(55)
$41.99
PrimeFREE delivery Sat, Jun 14
Loading...
Iaret Iaret Smart Watch for Women, 1.83" HD Fitness Tracker with 4 Bands, Answer/Make Calls, Heart Rate/Sleep/SpO2/Step Tracking, 100+ Sport Modes, Android/iPhone Compatible Gift (Rose Gold)

Iaret Iaret Smart Watch for Women, 1.83" HD Fitness Tracker with 4 Bands, Answer/Make Calls, Heart Rate/Sleep/SpO2/Step Tracking, 100+ Sport Modes, Android/iPhone Compatible Gift (Rose Gold)

(42)
$59.99
FREE delivery Thu, Jun 19
100+ bought in past month
Loading...
Smart Watch for Men Women 1.8" Fitness Tracker, Bluetooth Call, DIY Dial, Heart Rate Sleep Blood Oxygen Monitor, 100+ Sports Modes, IP68 Waterproof Smartwatch for Android iPhone, Alexa Built-in

Smart Watch for Men Women 1.8" Fitness Tracker, Bluetooth Call, DIY Dial, Heart Rate Sleep Blood Oxygen Monitor, 100+ Sports Modes, IP68 Waterproof Smartwatch for Android iPhone, Alexa Built-in

(980)
$39.99
FREE delivery Sun, Sep 21
300+ bought in past month
Loading...
Hand Warmers 2 Pack, 14000mAh Rechargeable Hand Warmers, Electric Hand Warmer Reusable, Portable Power Bank USB Hand Warmers 4 Levels 8 Heating, Gifts for Raynauds Ski Golf Camping

Hand Warmers 2 Pack, 14000mAh Rechargeable Hand Warmers, Electric Hand Warmer Reusable, Portable Power Bank USB Hand Warmers 4 Levels 8 Heating, Gifts for Raynauds Ski Golf Camping

(683)
$74.08$59.47
FREE delivery Jun 13 - 18
Loading...
Hand Warmers Rechargeable, 10000mAh Electric Heated Gloves Power Bank Portable Graphene Handwarmers Pouch with 3 Levels & Double-Sided Heating for Hunting Camping Golf Xmas Gifts for Women Men Kids

Hand Warmers Rechargeable, 10000mAh Electric Heated Gloves Power Bank Portable Graphene Handwarmers Pouch with 3 Levels & Double-Sided Heating for Hunting Camping Golf Xmas Gifts for Women Men Kids

(651)
$44.99
PrimeFREE delivery Sun, Jun 15
Loading...
2Pack Rechargeable Hand Warmer, 8000mAh Electric Hand Warmer Power Bank, Portable USB-C Hand Warmer for Pocket, Reusable Hand Warmer Up to 8 hrs Each, Warm Gift for Men Women, for Hunting, Camping
Amazon's Choice

2Pack Rechargeable Hand Warmer, 8000mAh Electric Hand Warmer Power Bank, Portable USB-C Hand Warmer for Pocket, Reusable Hand Warmer Up to 8 hrs Each, Warm Gift for Men Women, for Hunting, Camping

(1,128)
$15.99
FREE delivery Sat, Jun 14 on your first order
Loading...
GTOCE Portable Charger,40000mAh Power Bank with 22.5W Fast Charging LED Digital Display Battery Pack with 6 Outputs 2 Inputs, Type C Powerbank Portable Charger for iPhone 16 pro Samsung AirPods,Black

GTOCE Portable Charger,40000mAh Power Bank with 22.5W Fast Charging LED Digital Display Battery Pack with 6 Outputs 2 Inputs, Type C Powerbank Portable Charger for iPhone 16 pro Samsung AirPods,Black

(334)
$42.99
FREE delivery Thu, Oct 16
1K+ bought in past month
Loading...
Monster Sleep Ear100 Ear Buds, Sleep Earbuds with Stereo Sound, Design for Side Sleeper, 32H Playtime, Bluetooth 6.0, ENC Noise Cancelling, IPX6 Waterproof Mini Headphones, Black

Monster Sleep Ear100 Ear Buds, Sleep Earbuds with Stereo Sound, Design for Side Sleeper, 32H Playtime, Bluetooth 6.0, ENC Noise Cancelling, IPX6 Waterproof Mini Headphones, Black

(15)
$39.99
FREE delivery Mon, Feb 23
Loading...
Monster Sleep Ear100 Ear Buds, Sleep Earbuds with Stereo Sound, Design for Side Sleeper, 32H Playtime, Bluetooth 6.0, ENC Noise Cancelling, IPX6 Waterproof Mini Headphones, Black

Monster Sleep Ear100 Ear Buds, Sleep Earbuds with Stereo Sound, Design for Side Sleeper, 32H Playtime, Bluetooth 6.0, ENC Noise Cancelling, IPX6 Waterproof Mini Headphones, Black

(6)
$39.99
FREE delivery Sat, Dec 27
Loading...
Hydroponics Growing System Indoor Garden - Herb Garden with Grow Light, 15 Pods Stainless Steel Indoor Garden Kit, Auto Timer, Gardening Gift for All Ages

Hydroponics Growing System Indoor Garden - Herb Garden with Grow Light, 15 Pods Stainless Steel Indoor Garden Kit, Auto Timer, Gardening Gift for All Ages

(24)
$206.57$200.61
FREE delivery Jun 13 - 17
Loading...
Umbra Triflora Hanging Planter for Window, Indoor Herb Garden, Set of 5, White/Black

Umbra Triflora Hanging Planter for Window, Indoor Herb Garden, Set of 5, White/Black

(7,808)
$71.52
PrimeFREE delivery Sat, Jun 14
Loading...
Large Hydroponics Growing System 14 Pods, Indoor Herb Garden with LED Grow Light, 5L Water Tank, Hydroponic Grow Kit with 3 Auto-Timers, Rotatable Light Panel and Child Lock for Home School Gardening

Large Hydroponics Growing System 14 Pods, Indoor Herb Garden with LED Grow Light, 5L Water Tank, Hydroponic Grow Kit with 3 Auto-Timers, Rotatable Light Panel and Child Lock for Home School Gardening

(119)
$167.81
FREE delivery Jun 16 - 20
Loading...
Hanging Planter Hanging Plant Holder, 6 Inch 4 Indoor Plant Pots, Wall/Window Plant Hanger Indoor Herb Garden

Hanging Planter Hanging Plant Holder, 6 Inch 4 Indoor Plant Pots, Wall/Window Plant Hanger Indoor Herb Garden

(269)
$35.99$28.90
PrimeFREE delivery Sat, Jun 14
Loading...
slopehill Multi Hair Stylers & Hair Straightener - 2 in 1 Wet to Dry Air Straightener and Hair Dryer Combo with High Speed Air + Rapid Heat-Up + Customizable Temperature(Pink)

slopehill Multi Hair Stylers & Hair Straightener - 2 in 1 Wet to Dry Air Straightener and Hair Dryer Combo with High Speed Air + Rapid Heat-Up + Customizable Temperature(Pink)

(177)
$139.99
Prime
Loading...
Hi.FANCY Portable Laptop Stand with Dual Cooling Fans for 14-17inch Laptops, Grey, 23.5 x 25.9 x 0.95cm

Hi.FANCY Portable Laptop Stand with Dual Cooling Fans for 14-17inch Laptops, Grey, 23.5 x 25.9 x 0.95cm

(0)
$36.99
FREE delivery Aug 18 - 28
Loading...
Laptop Stand for Desk, Adjustable Laptop Riser ABS+Silicone Foldable Portable Laptop Holder, Ventilated Cooling Notebook Stand for 10-15.6” Laptops,Tablet-Black

Laptop Stand for Desk, Adjustable Laptop Riser ABS+Silicone Foldable Portable Laptop Holder, Ventilated Cooling Notebook Stand for 10-15.6” Laptops,Tablet-Black

(11,679)
$14.99
FREE delivery Sat, Jun 14 on your first order
500+ bought in past month
Loading...
JETech 5 in 1 Case for Samsung Galaxy S25 Ultra 5G with 2-Pack Each Tempered Glass Screen Protector and Camera Lens Protector, Non-Yellowing Shockproof Bumper Phone Cover (Clear)

JETech 5 in 1 Case for Samsung Galaxy S25 Ultra 5G with 2-Pack Each Tempered Glass Screen Protector and Camera Lens Protector, Non-Yellowing Shockproof Bumper Phone Cover (Clear)

(197)
$15.99
FREE delivery Sat, Jun 14 on your first order
100+ bought in past month
Loading...
TAURI for iPhone 17 Pro Max Case 6.9" with 1-Pack Screen Protector, Camera Lens Full Protection, Military-Grade Protection, Shockproof Transparent Back Bumper Phone Cover - Clear Global Recycled Standard

TAURI for iPhone 17 Pro Max Case 6.9" with 1-Pack Screen Protector, Camera Lens Full Protection, Military-Grade Protection, Shockproof Transparent Back Bumper Phone Cover - Clear Global Recycled Standard

(0)
$10.76
FREE delivery Thu, Oct 16 on your first order
2K+ bought in past month
Loading...
TAURI for iPhone 17 Pro Case 6.3" with 1-Pack Screen Protector, Camera Lens Full Protection, Military-Grade Protection, Shockproof Transparent Back Bumper Phone Cover - Clear Global Recycled Standard
Best Seller

TAURI for iPhone 17 Pro Case 6.3" with 1-Pack Screen Protector, Camera Lens Full Protection, Military-Grade Protection, Shockproof Transparent Back Bumper Phone Cover - Clear Global Recycled Standard

(61,696)
$10.76
Prime
2K+ bought in past month
Loading...
JOINPAYA 1Set Rechargeable Hand Warmer Hand Heater for Winter Heating Levels Compact

JOINPAYA 1Set Rechargeable Hand Warmer Hand Heater for Winter Heating Levels Compact

(0)
$9.29
FREE delivery Jun 20 - Jul 4
Loading...
Shakven Rechargeable Hand Warmer | Cute Comfortable Portable Hand Warmers,Ergonomic Adjustable Energy-Efficient Small Heater for Travel, Outdoor, Winter

Shakven Rechargeable Hand Warmer | Cute Comfortable Portable Hand Warmers,Ergonomic Adjustable Energy-Efficient Small Heater for Travel, Outdoor, Winter

(0)
$26.93
FREE delivery Jun 19 - Jul 2
Loading...
OCOOPA IP45 Waterproof Hand Warmer Rechargeable, Up to 15hrs Heat,10000mAh Durable Quick Charge Electric Hand Heater, PD Compatible, 3 Levels for Outdoors, Heavy Duty, H01-PD PRO

OCOOPA IP45 Waterproof Hand Warmer Rechargeable, Up to 15hrs Heat,10000mAh Durable Quick Charge Electric Hand Heater, PD Compatible, 3 Levels for Outdoors, Heavy Duty, H01-PD PRO

(50)
$39.99
PrimeFREE delivery Sat, Jun 14
Loading...
OCOOPA IP45 Waterproof Hand Warmer Rechargeable, Up to 15hrs Heat,10000mAh Durable Quick Charge Electric Hand Heater, PD Compatible, 3 Levels for Outdoors, Heavy Duty, H01-PD PRO

OCOOPA IP45 Waterproof Hand Warmer Rechargeable, Up to 15hrs Heat,10000mAh Durable Quick Charge Electric Hand Heater, PD Compatible, 3 Levels for Outdoors, Heavy Duty, H01-PD PRO

(649)
$39.99
PrimeFREE delivery Sat, Jun 14