JWST has seen more distant galaxies than any other observatory, ever. But many candidates for “most distant of all” are likely impostors.
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Scientific surprises, driven by experiment, are often how science advances. But more often than not, they’re just bad science.
The brilliant mind who discovered the spacetime solution for rotating black holes claims singularities don’t physically exist. Is he right?
It’s like radar, but with light. Distributed acoustic sensing — DAS — picks up tremors from volcanoes, quaking ice and deep-sea faults, as well as traffic rumbles and whale calls.
There are 40 billion billion black holes in the universe. Here’s how our Solar System stacks up against ten of them.
The futuristic weapon could be ready for the battlefield in 5 years.
All biological systems are wildly disordered. Yet somehow, that disorder enables plant photosynthesis to be nearly 100% efficient.
“She understood me and I understood her. I loved that pigeon.”
Physicists just can’t leave an incomplete theory alone; they try to repair it. When nature is kind, it can lead to a major breakthrough.
Yes, dark energy is real. Yes, distant galaxies recede faster and faster as time goes on. But the expansion rate isn’t accelerating at all.
The double-slit experiment, hundreds of years after it was first performed, still holds the key mystery at the heart of quantum physics.
From ancient Greek cosmology to today’s mysteries of dark matter and dark energy, explore the relentless quest to understand the Universe’s invisible forces.
NASA’s only flagship X-ray telescope ever, Chandra, still works and has no planned successor. So why does the President want to kill it?
It’s a radical but plausible idea.
The cosmic scales governing the Universe are almost unbelievably large. What if we shrunk the Sun down to be just a grain of sand?
Earth, the only rocky planet with a large, massive satellite, is greatly affected by the Moon. Destroying it would cause 7 major changes.
There are two types of missing, or “dark” matter: baryonic (made of normal matter) and non-baryonic. Have we finally found the normal stuff?
Plants at room temperature show properties we had only seen near absolute zero.
Gamma-ray bursts are among the most energetic cosmic events of all. On October 9, 2022, a remarkable one occurred: the brightest ever seen.
The first observational evidence showing the Universe is expanding is 100 years old now: in 2023. Here’s the story of its 100th anniversary.
There’s the textbook answer, then there’s the real answer.
The Universe isn’t as “clumpy” as we think it should be.
In general relativity, white holes are just as mathematically plausible as black holes. Black holes are real; what about white holes?
The image you’re seeing isn’t a hole in the Universe, and the cosmic voids that do exist aren’t hole-like at all.
So far, gravitational waves have revealed stellar mass black holes and neutron stars, plus a cosmic background. So much more is coming.
Research sheds light on social behavior of these mysterious predators.
Size matters, but it’s not the only thing.
From the earliest stages of the hot Big Bang (and even before) to our dark energy-dominated present, how and when did the Universe grow up?
Lab experiments showed Caribbean box jellyfish are quick studies of their environment.
If you can identify a foreground star, the spike patterns are a dead giveaway as to whether it’s a JWST image or any other observatory.