It is a story with nebulous beginnings and no discernible end.
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In physics, we reduce things to their elementary, fundamental components, and build emergent things out of them. That’s not the full story.
Since dark matter eludes detection, the mission will target sources of light that are sensitive to it.
Stars orbiting black holes were observed to move significantly slower than expected. One explanation centers on dark matter.
2022 was a year full of scientific discoveries and the dawn of the JWST. But Hubble’s still going after 32 years. Here’s the amazing proof!
Yes, the Universe is expanding, but if you’ve ever wondered, “How fast is it expanding,” the answer isn’t in terms of a speed at all.
Is the Universe finite or infinite? Does it go on forever or loop back on itself? Here’s what would happen if you traveled forever.
Generations ago, cosmologists asserted that the Universe might not just be the same in all directions, but at all times. But is that true?
It’s not only the gravity from galaxies in a cluster that reveal dark matter, but the ejected, intracluster stars actually trace it out.
Leaving Hubble in the dust, JWST has officially seen a galaxy from just 320 million years after the Big Bang: at just 2.3% its current age.
Two scientists recently wagered a bottle of whiskey. The bet? Whether we’ll find evidence of advanced extraterrestrial life in the next 15 years.
With infrared capabilities and image sharpness far beyond Hubble’s limits, JWST looked at Hubble’s deepest field, revealing so much more.
If our Universe were born a little differently, there wouldn’t have been any planets, stars, galaxies, or chemically interesting reactions.
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?
Before there were planets, stars, and galaxies, before even neutral atoms or stable protons, there was the Big Bang. How did we prove it?
Most globular clusters appear to form their stars all at once, but there are exceptions. JWST just observed how “second formations” happen.
Our galactic home in the cosmos — the Milky Way — is only one of many trillions of galaxies within in the observable Universe. Do we have a twin?
Astronomers in 2017 caught an image of a supermassive black hole in a galaxy far, far away. Doing it in our own galaxy is a huge milestone.
From the Big Bang to dark energy, knowledge of the cosmos has sped up in the past century — but big questions linger.
For every proton, there were over a billion others that annihilated away with an antimatter counterpart. So where did all that energy go?
Astronomers have discovered more than 5,000 confirmed exoplanets — very few of which resemble Earth.
In many ways, we are still novices playing with toy models seeking to understand the stars.
Some 13.8 billion years ago, the Universe became hot, dense, and filled with high-energy quanta all at once. Here’s what it was like.
If the evolution of the Universe is a movie, what happens when we rewind it all the way backward?
The best evidence for dark matter is astrophysical and indirect. Do new lensing observations point to ultra-light, wave-like dark matter?
By studying the dwarf galaxy Wolf-Lundmark-Melotte ~3 million light-years away, JWST reveals the Universe’s star-forming history firsthand.
In a far-reaching discovery with astrophysicist Karolina Garcia, we discuss what’s in the Universe and how it grew up.
A fascinating 90 minute podcast between Dr. Ivanna Escala and Ethan Siegel on Starts With A Bang!
When supermassive black holes merge, they emit more energy than anything else to occur in our Universe except the Big Bang.
JWST’s revolutionary views arrive in high-resolution at infrared wavelengths. Without NASA’s Spitzer first, it wouldn’t have been possible.