Articles for category: Physics, Space

How Does Mercury Even Exist?

How Does Mercury Even Exist?

Andrew Alpin

  Stand at the edge of space and look toward the Sun. There’s , a tiny battered world clinging to the edge of solar annihilation. It shouldn’t work, really. This small, cratered planet faces conditions that would destroy most other worlds we know. The temperatures are wild, swinging by more than a thousand degrees. There’s ...

Astrophysics Says Magnetars Have Magnetic Fields So Powerful That a Momentary Exposure From Deep Space Distance Would Be Sufficient to Alter Matter at the Atomic Level

Astrophysics Says Magnetars Have Magnetic Fields So Powerful That a Momentary Exposure From Deep Space Distance Would Be Sufficient to Alter Matter at the Atomic Level

Sameen David

If you could somehow see magnetic fields with your eyes, a magnetar would look like a cosmic buzzsaw tearing at the fabric of reality. These stellar corpses sit in distant galaxies, yet their magnetism is so extreme that, in theory, even a brief encounter at a safe-seeming distance could shake apart matter itself. This is ...

Why the Universe May End in a ‘Big Crunch’

Gargi Chakravorty

Have you ever wondered how our vast cosmos might eventually meet its end? For decades, scientists believed the universe would simply expand forever, cooling into a lonely, frozen void. Yet recent discoveries from powerful observatories have challenged this long-held view, suggesting something far more dramatic could await. Think about everything around you collapsing back into ...

Cosmology Says the Darkest Patches of Sky Between the Stars Are Not Empty - They Are Filled With Something That Outweighs All Visible Matter Combined and That Science Has Been Unable to Directly Detect for Fifty Years

Cosmology Says the Darkest Patches of Sky Between the Stars Are Not Empty – They Are Filled With Something That Outweighs All Visible Matter Combined and That Science Has Been Unable to Directly Detect for Fifty Years

Sameen David

You have probably stared up at the night sky and assumed that the black spaces between the stars are just nothingness. It feels natural to think that way: bright dots are “something,” dark patches are “empty.” But modern cosmology says you’ve got that backward. Those apparently empty regions are where most of the universe’s matter ...

Astrophysics Says the Andromeda Galaxy Is Already Gravitationally Interacting With the Milky Way - and the Merger That Will Reshape Both Has Been in Progress Since Long Before Humans Existed

Astrophysics Says the Andromeda Galaxy Is Already Gravitationally Interacting With the Milky Way – and the Merger That Will Reshape Both Has Been in Progress Since Long Before Humans Existed

Sameen David

You tend to imagine cosmic disasters as sudden, explosive events: a star going supernova, an asteroid slamming into a planet, a black hole tearing something apart. But the biggest transformation facing your home galaxy is almost painfully slow. Long before humans walked the Earth, before the dinosaurs, even before complex life crawled out of ancient ...

Most normal matter in the universe isn't found in planets, stars or galaxies – an astronomer explains where it's distributed

Hunting the Hidden Universe: Where Ordinary Matter Hides in Space

Sumi

The Enigma of Baryonic Matter (Image Credits: Cdn.mos.cms.futurecdn.net) Astronomers have long puzzled over the whereabouts of the universe’s ordinary building blocks, revealing that much of this matter drifts far from the familiar glow of stars and galaxies. The Enigma of Baryonic Matter Scientists faced a longstanding riddle in cosmology: the Big Bang theory predicted a ...

Cosmology Says the Universe Has a Sound Recorded From the Oldest Light in Existence - and the Note It Is Playing Is 57 Octaves Below Anything the Human Ear Can Detect

Cosmology Says the Universe Has a Sound Recorded From the Oldest Light in Existence – and the Note It Is Playing Is 57 Octaves Below Anything the Human Ear Can Detect

Sameen David

You live in a universe that, long before there were stars, planets, or people, literally rang like a gigantic bell. That cosmic ringing left ripples in the oldest light you can see, and from those ripples, scientists have figured out that the universe has a “note” – an unimaginably deep tone, fifty‑seven octaves below anything ...

The Scariest Thing Astronauts Claim to Have Seen in Space

The Scariest Thing Astronauts Claim to Have Seen in Space

Sameen David

If you imagine going to space, you probably think of the view: blue Earth below, silent stars above, and that dreamy sense of floating freedom. But if you listen carefully to what astronauts actually describe, a very different picture appears. Space is stunning, yes, but it can also be deeply unsettling, sometimes even terrifying in ...

black hole galaxy illustration

The Strange World of Space Panspermia: Could Life Have Spread Across the Universe?

Annette Uy

Introduction to Panspermia: An Overview The concept of panspermia is as fascinating as it is enigmatic, suggesting that life exists throughout the universe and is distributed by meteoroids, asteroids, comets, and possibly spacecraft. This theory postulates that life on Earth, or elsewhere, might have an extraterrestrial origin. Although panspermia is not a new idea, its ...