Measurements of the acceleration of the universe don’t agree, stumping physicists working to understand the cosmic past and future. A new proposal seeks to better align these estimates — and is likely testable.
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With two different black hole event horizons now directly imaged, we can see that they are, in fact, rings, not disks. But why?
Social media distorts the reality of the public sphere.
“Even with my training, I still got insights from the book’s descriptions. That’s how good Carroll is at explaining physics.”
No matter how hard we try, we will never reach a final theory that unifies scientific knowledge. The very nature of science doesn’t allow it.
Singularities frustrate our understanding. But behind every singularity in physics hides a secret door to a new understanding of the world.
How did the troughs form?
Realizing that matter and energy are quantized is important, but quantum particles aren’t the full story; quantum fields are needed, too.
It’s the origin of our entire observable Universe, but it’s still not the very beginning of everything.
An average undergraduate student in physics is better than the AI.
But it’s still challenging to build a 22,000-mile elevator.
Life in the supremely vast cosmos is incredibly rare. We need a new vision for our living planet and for ourselves.
Some microbes can withstand Earth’s most inhospitable corners, hinting that life may be able to survive similarly extreme conditions on other worlds.
Always look on the bright side of death.
Once water gets more than about 200 feet deep, building on the sea floor is out of the question.
Historians have been able to piece together a clear picture of how the average Roman citizen spent their waking hours.
Organic molecules can be produced by living or non-living systems. But the recent findings are very intriguing.
For the first time, light that comes from behind a black hole has been spotted.
The hyperloop would be a great idea for a completely flat planet. With topography and infrastructure, it’s a very different story.
Over the past 50 years, 27 leap seconds have been added to our time.
Finding this missing piece of water’s path through the universe offers clues to how it came to be on Earth.
Everything is made of matter, not antimatter, including black holes. If antimatter black holes existed, what would they do?
Two types of leaves for two different drastic weather conditions.
The Big Bang is commonly misunderstood, warping our understanding about the Universe’s size and shape.
Nothing can escape from a black hole. So where do Hawking radiation, relativistic jets, and X-ray emissions around black holes come from?
Spin, spin, spin — fire! The startup’s radical system could make satellite launches cheaper and cleaner.
Astronomers used supercomputers and an international network of antennas to create the stunning map.
No matter how good our measurement devices get, certain quantum properties always possess an inherent uncertainty. Can we figure out why?
In our common experience, you can’t get something for nothing. In the quantum realm, something really can emerge from nothing.
It could make enough drinking water for a family of four.