Astrum

We Detected an Unusual Signal Coming From Our Galaxy's Core

321K views · 2d ago · 23:21

We detected a mysterious disappearing signal in the heart of our galaxy. Alien-hunting telescope “Breakthrough Listen” detected a faint pulsing signal... but then it disappeared. Now they’re searching the centre of our galaxy for the source. Is this one of the thousands of missing pulsars scientists predicted should exist, but can’t seem to find? And could this discovery finally prove general relativity?

Topics: Searching For Pulsars · How Pulsars Form · Pulsar Signals · The Breakthrough Listen Signal · Why Can’t We Find Them? · Did We Finally Find One?

We Found a Chemical on Titan We've Never Seen Before

1M views · 9d ago · 29:10

NASA is heading back to Titan... to search for alien life. Decades after the Cassini-Huygens touched down on Titan, cutting-edge observations from the James Webb Space Telescope are revealing surreal phenomena on this giant Saturnian moon. From monster slow-motion waves in its methane lakes, to unknown organic compounds that defy our knowledge of organic chemistry, there is so much more to understand about this world - and in 2030, we’re going back...

Topics: Titan · Huygens Probe Touchdown · Waves on Titan · Vanishing Islands · Alien Chemicals · Titan’s Wonky Atmosphere

The Impossible Reality Inside a Black Hole

665K views · 15d ago · 25:17

What lies beyond the Event Horizon? In all of space, nothing is more mind-meltingly strange than a black hole. These cosmic monsters are places where space becomes time, time becomes space, and the fundamental laws of physics simply cease to exist. But what if the event horizon isn't the final boundary?

Topics: A Black Hole Is Born · Let’s Go In · Choosing A Black Hole · Crossing the Event Horizon · Space Becomes Time · A Second Horizon

Uranus: The Weirdest Planet in the Solar System

3.1M views · 17d ago · 39:57

What is it about Uranus that makes it so weird? This Astrum supercut is a complete guide to the planetary enigma that is Uranus. We’ll dig into why exactly it rolls around the solar system on its side, what makes it the coldest planet on the solar system and how the remains of an ancient collision might still be buried at its heart.

Topics: Uranus is Weird · The Rolling Planet · Giant Storms · What’s Inside Uranus? · Bizarre Magnetic Tail · Uranus’s Rings

What Is Hiding in the Milky Way's Core?

576K views · 23d ago · 22:27

On 23rd March 2025 the Euclid telescope captured the most detailed visible-light image ever taken of the cosmic bulge of our Milky Way galaxy. It’s packed with 60 million stars, but that’s not all. And where there are stars, there are planets - millions of them. Could this image be the key to finding them?

Topics: The Milky Way’s Heart · Euclid's Secret Mission · Cosmic Dust & Clusters · Hunting For Other Worlds · An Exoplanet Revolution · What’s Hiding?

This New Theory of Everything Will Change How You See the Universe

1.3M views · 1mo ago · 44:49

Could this new theory of how space and time work explain everything in the universe? The laws of physics that govern our universe have left scientists with a lot of questions. But what if there was a simpler way to look at the universe? A method that takes into account the speed of light, time dilation, redshift, dark energy and an expanding universe?

Topics: A Theory of Everything · Time Is Relative · Do We Need Dark Energy? · 4D Spacetime · Speed Limit of a Photon · Calculating the Speed of Light

▶️ Mentioned videos: Part 1 · Part 2 · Part 3

Planet Formation Explained in Two Minutes

39K views · 1mo ago · 1:19

There's Something Odd About Neptune's Largest Moon

930K views · 1mo ago · 24:52

What we found on Neptune’s moon Triton. Triton is no ordinary moon. With an impossibly young surface and active cryovolcanoes, Neptune’s giant moon has baffled scientists for decades. How can this frozen world be so active, so far from the Sun? In this video, we’re digging into the latest discoveries, including a surprising mystery hiding deep beneath its icy crust.

Topics: Triton · Where Did Triton Come From? · Voyager 2 · Triton’s Core · Hidden Ocean · Liquid Water

What Is It Like on the Surface of a Black Hole Planet?

1.5M views · 1mo ago · 27:25

Scientists are searching for missing planets in the most unlikely place. Astrum books are still available in the US! If you’re fascinated by the cosmos, want to learn more about our Solar System, or just love stunning space images, get your hands on an Astrum book here

Topics: Black Hole Planet · Active Black Holes · Violent Accretion Disk · Pebbles to Planets · How Do They Form? · On the Surface

We Found Something Unexpected at the Heart of the Milky Way

1.1M views · 1mo ago · 1:27:42

The weirdest things we found hiding in our galaxy. The Astrum book is still available in the US! Get your hands on one here This Astrum supercut is a complete guide to the Milky Way. We’ll dig into the weirdest discoveries in our own cosmic backyard, reveal the mysterious structures hiding at the galactic centre, and find out what our home galaxy really looks like. If we can map galaxies billions of light-years away... why is our own home still such an enigma?

Topics: The Milky Way · What Does It Look Like? · Gaia · VISTA · The VVV Survey · Cepheid Variable Stars

The Most Detailed Image Ever Taken of the Sun

3.8M views · 1mo ago · 1:14

Scientists photographed the Sun’s surface in unprecedented detail. So we took one too.

We Just Saw the Birth of One of the Strangest Objects in the Universe

923K views · 1mo ago · 22:39

Have we just seen a magnetar being born? In December 2024, astronomers caught a rare superluminous supernova in action, and it did something unexpected. It kept pulsing. Scientists raced to explain what made this cosmic explosion so unusual. Was this our first ever glimpse at the birth of a magnetar - one of the most extreme objects in the universe?

Topics: Superluminous Supernova · How Bright Was It? · Supernova “Chirps” · Is It a Magnetar? · General Relativity · What Else Could It Be?

General Relativity Explained in Two Minutes

67K views · 1mo ago · 1:24

Gravity is not a force. Here’s what it really is, according to Einstein. This is General Relativity, explained in two minutes.

The Surprising Danger of Building a Human Colony on the Moon

2.2M views · 1mo ago · 31:57

It’s actually happening. NASA has released their plans to build a moon base: humanity’s first ever home on another world. In this video, we’ll dig into the blueprint to reveal what the habitat will look like, how we’ll survive the harsh lunar environment, and the deadly challenges waiting on the surface. But NASA isn't alone. Who else is racing to claim this region first?

Topics: Moon Base · Getting to the Moon · Moon Base Location · Phase One: Robots · Phase Two: Building · Deadly Radiation

We Measured Dark Energy in Our Solar System for the First Time

590K views · 2mo ago · 24:13

When will the universe end? Upgrade your online protection with an all-in-one security app! Get an exclusive NordVPN deal + 4 months extra here It’s risk free with NordVPN’s 30-day money-back guarantee! Scientists are predicting the end of the universe, and it could happen much sooner than we thought. For the first time, scientists have measured how dark energy is behaving right now, in the local universe, by measuring subtle shifts within our own solar system.

Topics: When Will the Universe End? · The Big Rip · Dark Energy · Measuring Expansion · Phantom Dark Energy · The Big Problem

Why Is the Closest Planet to the Sun So Cold?

2.8M views · 2mo ago · 28:08

We found something unexpected inside Mercury... Mercury makes no sense. It’s the closest planet to the Sun, yet parts of its surface are freezing cold. It’s so close to Earth, yet almost impossible to reach. And while its surface looks completely dead, its interior tells a very different story. In this video, we’ll explore what the BepiColombo probe has discovered on Mercury’s surface so far, and the unexpected surprises found hiding deep below.

Topics: Exploring Mercury · Ring Craters · Surface Composition · Permanent Shadow · Mercury’s Scars · Diamond Layer

The Andromeda Galaxy Is Under Attack

2M views · 2mo ago · 1:20

Andromeda is being bullied by another galaxy.

We Caught a Black Hole Switching On For the First Time

1.2M views · 2mo ago · 19:22

This supermassive black hole just woke up, and started killing its galaxy. Scientists have spotted something firing out “cosmic bullets” into space at nearly the speed of light. The culprit: a supermassive black hole that’s waking up and turning into a quasar... with deadly consequences for its entire galaxy. In this video, we’ll find out how a black hole can kill a galaxy, and whether we should be worried for our own.

Topics: What’s Happening to This Black Hole? · Galaxy Collisions · Cosmic Bullets · XRISM · Quasar Waking Up · NewAthena Mission

Earth’s Entire Existence In One Video

1M views · 2mo ago · 2:04:25

The entire history of Earth, in one video. This Astrum supercut journeys through the history of our planet, from its violent birth, to its fiery death. We’ll explore Earth’s formation, how life began, the reign of the dinosaurs (and how it really ended), and find out what will become of our planet billions of years into the future, whether we’re here or not.

Topics: The Story of Earth · Formation of the Earth · Bombardment by Asteroids · When Did Life Begin? · Pale Orange Dot · Snowball Earth

NASA Found Huge Structures Hidden Inside Mars

926K views · 2mo ago · 23:48

InSight discovered something unexpected under Mars’ surface. The InSight lander has detected the first ever ‘Marsquakes’... and revealed something strange going on in Mars’ interior. Deep beneath the crust, inside the molten mantle, InSight detected giant, chunky solid objects. What are they? And what can they tell us about how Mars and Earth formed?

Topics: Mars · What’s Inside a Planet? · Seismic Waves · InSight Lander · Mapping the Layers · Chunky Mantle

You Can’t Land on Saturn's Moon Hyperion

1.8M views · 3mo ago · 17:37

Saturn’s moon Hyperion might be the weirdest object in the solar system. In this video, we’ll explore Hyperion’s spongy surface, mostly empty interior, chaotic motion, and its strange power to dish out electric shocks from 2,000 km away...

Topics: Hyperion · Discovery of Hyperion · It’s Empty · How Did It Form? · Spongy Surface · Irregular Orbit

Watch the Total Solar Eclipse LIVE With Astrum

151K views · 3mo ago · 1:43:40

Join Astrum live for the total solar eclipse (Weds 12th August). Astrum Displate Posters Astrum Earth Astrum Extra Astrum Spanish Astrum Portuguese References “Total Solar Eclipse on August 12, 2026”, via nasa.gov “The science of solar eclipses”, via esa.int “Why Do Eclipses Happen?”, via nasa.gov “Eclipse Simulator”, via “A Solar Eclipse Glossary”, via “Sounding Rockets into Moon’s Shadow During Solar Eclipse”, via nasa.gov “May 15, 1836: The naming of Baily’s beads”, via…

Have We Finally Found a Real Wormhole?

1.8M views · 3mo ago · 26:48

Did we just discover a real wormhole? In 2019, scientists detected a signal that no one could explain. But now, they have proposed a mind-bending theory that could solve the mystery, and makes it a whole lot weirder... The signal might have come from a wormhole. Weirder yet, it could even be an echo from another universe.

Topics: A Real Wormhole · The Signal · What Created the Signal? · What Is a Wormhole? · Can You Travel Through a Wormhole? · Quantum Entanglement

We’ve Seen the Sun’s Inner Corona For the First Time... and It's Not What We Expected

618K views · 3mo ago · 23:47

Proba-3 revealed the Sun’s inner corona for the first time. ESA’s Proba-3 mission has achieved a world first. It created an artificial eclipse in space. Not just once, but over 50 times. In this video, we’ll discover how these two tiny probes are revolutionising our ability to study the Sun’s inner corona, and what they found on its surface.

Topics: Proba-3 · The Corona · Coronagraphs in Space · Creating an Eclipse · Millimetre Precision · Inner Corona: Revealed