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Black Hole
Singularities frustrate our understanding. But behind every singularity in physics hides a secret door to a new understanding of the world.
Theoretical physicist Brian Greene explores the potential particles of time and why we could, in theory, travel forward in time but not back.
John Templeton Foundation
Single objects rarely change the course of an entire scientific field. Distant object GNz7q, a galaxy-quasar hybrid, might do exactly that.
A new paper combines two concepts from the edges of astrophysics: Dyson Spheres and black holes. A Type III civilization could combine them.
To understand the edges of our universe, we’ll need to explore the edges of our own philosophies.
John Templeton Foundation
Astronomers used supercomputers and an international network of antennas to create the stunning map.
The odds are slim, but the consequences would be devastating. Here's what would happen, plus how to avoid it.
As viewed by the MeerKAT telescope, this radio view of the Milky Way blows away every other way we've ever seen our home galaxy.
Shooting star or piece of space dust?
If you want to understand what the Universe is, how it began, evolved, and will eventually end, astrophysics is the only way to go.
Some stars burn through their fuel as expected, and die of natural causes. But others, instead, get murdered. Here's their story.
Known as primordial black holes, they could thoroughly change our Universe's history. But the evidence is strongly against them.
Although most of the Universe's mass is dark matter, which gravitates just as well as normal matter, it still can't make black holes.
The latest gravitational wave data from LIGO and Virgo finally shows us the truth: there are no "gaps" in the masses of black holes.
It could evolve, strengthen, decay, or not be alone. Our known Universe contains matter, radiation, and dark energy. While matter (both normal and dark) and radiation become less dense as […]
The ‘final parsec problem’ is still a mystery for astronomers. When it comes to black holes in the Universe, we know there are at least two major types. There are […]
Even a small merger can trigger so much more than we realize. Practically every galaxy in the Universe has a supermassive black hole at their core. Ranging from millions to many […]
Despite Betelgeuse’s recent faintening and brightening, I’d bet on these stars instead. Betelgeuse, a nearby red supergiant, will someday explode. The black hole at the center of the Milky Way should […]
And either way, is energy or information conserved? When two things in the Universe that “always” occur meet one another, how do you know which one will win? Gravitational waves, […]
If you want to find life in the Universe, this is how you do it. When it comes to uncovering the ultimate truths about reality, we can only reap what we […]
An artist’s impression of what the fully-deployed James Webb Space telescope will look like from the perspective of an observer on the ‘dark’ (non-Sun-facing) side of the observatory. (NORTHRUP GRUMMAN) […]
Or is ‘new space’ created in between the gaps of the ‘old’ space? It’s been almost 100 years since humanity first reached a revolutionary conclusion about our Universe: space itself doesn’t […]
The last image puts it all in perspective. Compared to what we find in our Solar System, galaxies are truly enormous. The Sun may be 109 times the diameter of […]
Has all this happened before, and will all this happen once again? There are only a few questions, when we ask them, that force us to reckon with the fundamental nature […]
Even addition has to play by different rules for black holes. How do you add 28 and 47 together? This simple math question helps us highlight the many different ways that […]
We have to use the right definition for the specific question we’re asking. When it comes to the Universe, we frequently characterize objects by examining and reporting on their physical […]
And which ones are probably examples where we’ve fooled ourselves? Every once in a while — multiple times per year — a new research finding fails to line up with our theoretical expectations. In […]
And, at some point, did the Milky Way lose ours? There are some 400 billion objects flying through the Milky Way galaxy with enough mass that — if they were all made of […]
At just 3 solar masses, it eliminates the “mass gap.” Searching for black holes is one of the most difficult astronomical games a scientist can play. Emitting no light of their […]
Mass determines a star’s fate… except when it doesn’t. Supernova events are common, visually spectacular astronomical cataclysms. In 1987, a supernova just ~168,000 light-years away was observed in the Large Magellanic […]