What If the Universe Is Accelerating Because Stars Die?
For nearly three decades, scientists have struggled to identify the mysterious force accelerating the expansion of the universe. Now a radical theory suggests the answer.
COLLECTION / THE UNIVERSE DOES NOT EXPLAIN ITSELF
Cosmic Mysteries.
Dark matter, fundamental physics, and observations that refuse to fit neatly inside the models.
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A Star Died 6.5 Billion Years Ago. Its Explosion Is About to Arrive Again.
NASA is watching for a supernova we have already seen. When that light finally reaches Earth, it could help answer one of the most troubling questions in modern cosmology.
The Black Hole That Couldn’t Stop the Stars
An enormous black hole is blasting energy into the Phoenix Cluster, yet its central galaxy is producing stars at an extraordinary rate.
They Found Plutonium at the Bottom of the Pacific. The Explosion That Made It May Be Over 95 Million Years Old.
Deep beneath the ocean, scientists discovered radioactive debris from beyond Earth. The most disturbing clue was an element they could not find.
A Planet 64 Light-Years Away Is Firing Radio Bursts Into Space
A study traces the signal to a young giant planet and infers a magnetic field of at least 1,250 gauss where the bursts originate. The discovery could open a way to investigate worlds.
The Star That Came Back From the Dead Is Changing Again
Thirty years ago, Sakurai’s Object appeared to reverse its own death. Then it vanished inside a cloud of carbon dust.
The Milky Way May Be Hiding an Entire Population of Dark Engines
One source has remained radio-bright for two decades while its X-rays stay undetected. The deeper mystery may be how many others we have missed.
The Little Red Dots May Be Black Holes Wearing Stars
Webb is revealing a possible hidden phase of black hole growth that could change how we read the early universe
The Universe Could Erase the Evidence of Its Own Beginning
Ancient light still tells us where we came from. If cosmic acceleration continues, future astronomers could inherit a sky that conceals much of that history.
TON 618: The Black Hole So Enormous That Astronomers Still Disagree About Its Size
In 1957, two astronomers photographed what appeared to be an ordinary blue star. They had no idea they had recorded the light of one of the most monstrous black holes ever discovered.
The Black Hole That Tore Two Stars Apart and Sent One Into Eternal Exile
A runaway star’s motion points back to the Galactic Center, where a black hole may have broken a binary apart and sent its members toward very different futures.
A Failed Star Is Eating Its Companion. It May Finally Ignite.
A pair of brown dwarfs circles every 57 minutes, while Webb is uncovering tiny worlds that blur the boundary between planets and stars.
A Black Hole Could Leave Earth Without a Sun
A passing stellar remnant could break the bond that makes our world habitable, while Earth itself remained outside the event horizon.
The Great Nothing: What If Your Galaxy Was Trapped Inside 330 Million Light-Years of Emptiness?
An enormous region of the universe contains remarkably few galaxies. The truly unsettling question is what the cosmos would look like if we lived inside it.
The Black Hole That Grew Before Its Galaxy
The James Webb Space Telescope has found an ancient black hole containing 50 million times the mass of our Sun, yet the stars surrounding it appear to weigh less than half as much.
A Star Is Coming for the Solar System. It Could Wake the Oort Cloud.
Gliese 710 will pass through our distant comet reservoir in roughly 1.3 million years. Earlier stellar visitors suggest the Solar System has never been as isolated as it feels.
A Star Exploded. 3.5 Seconds Later, It May Have Taken Another Star With It.
An ancient flash may preserve a cosmic chain reaction that created a pulsar and a black hole, while its strangely faint afterglow raises a different mystery.
A Black Hole Can Grow Inside While Its Outside Stays the Same
Its hidden geometry can become immense, yet every traveler still faces a future with no way back.
The Galaxies That Lost Their Dark Matter
A third galaxy has joined a strange cosmic trail, strengthening the possibility that an ancient collision separated ordinary matter from the invisible mass that usually surrounds it.
The Universe Was Dark Until Light Learned How to Escape
The first galaxies did more than illuminate the cosmos. They burned holes through it.
The Universe Looks Written in Mathematics. Physics Still Can’t Explain Why.
The constants are strangely hospitable, equations predict things before we discover them, and the deepest laws of nature refuse to explain where they came from.
The Sun’s 10,000-Light-Year Journey May Have Changed Earth’s Fate
Thousands of stars that resemble our Sun are raising an unsettling possibility: the history of life may depend on a journey through the galaxy that we are only beginning to reconstruct.
The Star Our Black Hole Kept
S301 may be the survivor of a shattered stellar partnership, and its extraordinary orbit could expose the hidden rotation of the Milky Way’s central black hole.
The First Nuclear Clock Has Started Ticking
Humanity has spent centuries building better clocks. In 2026, physicists finally moved the ticking mechanism into the heart of the atom itself.
The Sun Is a Prison for Its Own Light
The energy warming your skin has a hidden history inside a star, where its journey outward can take longer than the entire span of recorded civilization.
They Put 7,000 Atoms in a Schrödinger’s Cat State
The quantum world just moved closer to ours, and physicists still cannot tell us where the boundary actually is.
There Is No Such Thing as “Right Now” Across the Universe
The Andromeda Paradox says two people walking past each other on Earth can disagree by days about what is happening in another galaxy, and according to relativity, both can be right.
The Planets That Go Quiet While Their Stars Still Shine
A world can receive the right amount of sunlight and still lose the machinery that keeps its climate alive.
The Same Unidentified Mark Appeared on Titan and Pluto
Two frozen worlds. One missing sliver of infrared light. And a chemical story we cannot yet read.
The Particle That Never Needs to Recharge
We spent a century asking what powers the electron. Physics eventually discovered that the question itself was wrong.