Galaxies don't simply feed their central supermassive black holes, but the activity generated inside affects the entire galaxy and more.
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We may be the last generation born not knowing if we are alone in the Universe.
The Big Bang is commonly misunderstood, warping our understanding about the Universe's size and shape.
We can't go back to the Big Bang, nor ahead to the heat death of the Universe. Nevertheless, here are today's natural temperature extremes.
Two scientists recently wagered a bottle of whiskey. The bet? Whether we'll find evidence of advanced extraterrestrial life in the next 15 years.
Fantasy, meet statistics: The census comes to Middle-earth!
Today, the star-formation rate across the Universe is a mere trickle: just 3% of what it was at its peak. Here's what it was like back then.
The answer to this question is key to understanding why anything exists.
There might be a hard limit to our knowledge of the Universe.
Hubble showed us what our modern day Universe looks like. JWST's big goal was to teach us how the Universe grew up. Here's where we are now.
Every time our Universe cools below a critical threshold, we fall out of equilibrium. That's the best thing that ever happened to us.
Nobel Laureate Roger Penrose, famed for his work on black holes, claims we've seen evidence from a prior Universe. Only, we haven't.
Dark energy is one of the biggest mysteries in all the Universe. Is there any way to avoid "having to live with it?"
Cosmologists are largely still in the dark about the forces that drive the Universe.
Two of the answers add a dimension to physics that doesn’t belong there. Maybe we could call it "astrotheology."
How scientists are hearing the gravitational background "hum" of the Universe for the very first time.
Just by observing the tiny amount of deuterium left over from the Big Bang, we can determine that dark matter and dark energy must exist.
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.
We need a hypothesis that accounts for both the fine-tuning of physics for life but also the arbitrariness and gratuitous suffering we find in the world.
A University of Oxford professor explains how conscious machines are possible.
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Everything you ever wanted to know about the Universe, explained by physicist Sean Carroll.
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Generations ago, cosmologists asserted that the Universe might not just be the same in all directions, but at all times. But is that true?
If you said "with the Big Bang," congratulations: that was our best answer as of ~1979. Here's what we've learned in all the time since.
In 1924, Edwin Hubble found proof that the Milky Way isn't the only galaxy in the Universe.
The laws of physics don't prefer matter over antimatter. So how can we be certain that distant stars & galaxies aren't made of antimatter?
Science will lead us to a universal morality and a cosmic religion.
The hot Big Bang was an energetic, brilliantly luminous event. Today's Universe is alight with stars. But in between, the dark ages ruled.
Uncertainty is inherent to our Universe.
The Universe isn't as "clumpy" as we think it should be.
Perhaps the most remarkable fact about the Universe is simply that it, and everything in it, exists. But what's the reason why?