Yes, the Universe is expanding, but you might wonder, "How fast is it expanding?"
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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 […]
The heart of the religious ritual is mysticism, argues Brian Muraresku in "The Immortality Key."
And if it does strike us, how much damage will it cause? Will near-Earth asteroid Apophis strike us in 2068? Generically, asteroids under ~1 km in size are irregularly shaped, will […]
With 5,000 square degrees of data, the Dark Energy Survey has something important to say. For as long as humans have been studying the Universe, we’ve yearned to know the answers […]
Debris from Pluto-sized collisions, not aliens, are streaming through the galaxy. In 2017, scientists discovered an object passing through our Solar System that was unlike anything else we had ever seen. […]
The majority of the matter in our Universe isn't made of any of the particles in the Standard Model. Could the axion save the day?
When three wise men gifted baby Jesus with gold, frankincense, and myrrh, they had no idea one was made from colliding neutron stars.
If we were born trillions of years in the future, could we even figure out our cosmic history?
California’s Bobcat Fire has reached Mount Wilson Observatory’s doorstep. 100 years ago, our understanding of the Universe was very different from what it is today. Einstein’s General Relativity, our theory […]
Is that required for detectors like LIGO and Virgo to work? Whenever any two things in the Universe interact at the same location in spacetime, one thing always remains true about […]
Astrophysicists calculate the likely number of civilization out there capable of communicating with us.
And a combination of all three might take us farther than ever. If you want to see the farthest objects in the Universe, you have to know not only where to […]
Without a little help from Einstein, we couldn’t have made this discovery. NASA’s Hubble Space Telescope, currently celebrating its 30th anniversary, still churns out novel discoveries. The Hubble eXtreme Deep […]
The pendulum didn’t tick right when they brought it here: the start of a fascinating story. For nearly three full centuries, the most accurate way that humanity kept track of […]
We just found the first one within 1,000 light-years of us. But there’s probably one much, much closer. For a long time, black holes were known to exist only in the […]
New research shows how Americans feel about genetic engineering, human enhancement and automation.
Why would people rate certain names as being more extraverted or more agreeable?
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 […]
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Can the American government stop coronavirus spread? Its past actions speak volumes.
The night sky is already noticeably different, and bigger changes are ahead. For all of human history until the launch of Sputnik, the only objects in the night sky were naturally […]
On May 4, 1970, the National Guard shot and killed four students during an anti-war protest. The massacre went on to change American culture forever.
The team seems to have found a way to extend animal lifespan without genetic modification.
Everything on Earth is made of atoms and their building blocks. Without this one rule, they’d never make anything interesting. Take a look around you at everything on Earth. If […]
"A monkey has been able to control a computer with its brain," Musk said, referring to tests of the device.
Sure, cosmic inflation has its detractors. But it also has something no alternative possesses: predictions and tests. Perhaps the most compelling part of any remarkable story is its origin: how it […]
First of a 3-part series about future technologies and their role in human flourishing.
Project to map global 'species richness' highlights the variety of biodiversity itself
Some of them may have formed just 200 million years after the Big Bang. When we look out at the Universe, we’re not seeing objects as they are today, but rather […]