Such massive, early supermassive black holes have puzzled astronomers for decades. At last, we've finally figured out how they form.
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Despite billions of years of life on Earth, humans first arose only ~300,000 years ago. It took all that time to make our arrival possible.
Even if you aren't in the path of totality, you can still use the solar eclipse to measure how long it takes the Moon to orbit Earth.
The Big Bang's hot glow faded away after only a few million years, leaving the Universe dark until the first stars formed. Oh, the changes!
The first stars took tens or even hundreds of millions of years to form, and then died in the cosmic blink of an eye. Here's how.
Although human beings arrived on Earth just ~300,000 years ago, we've transformed the entire planet completely. Here's how we did it.
In the early stages of the hot Big Bang, there were only free protons and neutrons: no atomic nuclei. How did the first elements form from them?
The first elements in the Universe formed just minutes after the Big Bang, but it took hundreds of thousands of years before atoms formed.
Boardroom veteran David Roche offers key strategies that can lay the groundwork for CEO success.
In the infant Universe, particle physics reigned supreme.
By looking down, scientists are looking back in time.
Although mammals may be the dominant form of life today, we're relative newcomers on planet Earth. Here's our place in natural history.
The Universe is 13.8 billion years old, going back to the hot Big Bang. But was that truly the beginning, and is that truly its age?
If you guessed “staying up all night to play video games,” you’d be right.
The brain-computer interface will be tested in a six-year trial in patients with quadriplegia.
From before the Big Bang to Voyager 1, particle physicist Harry Cliff takes us on a whiz-bang tour of the Universe's evolution.
The DUNE project will beam tiny neutrinos across vast distances. But the first step involved moving a heavier material: 1 million tons of rock.
With so many early galaxies of unexpectedly large brightnesses, JWST surprised us all. Here's how scientists made sense of what we see.
College students once stood out from the pack on IQ tests. Today, they're about average.
In the early stages of the hot Big Bang, matter and antimatter were (almost) balanced. After a brief while, matter won out. Here's how.
Newton thought that gravitation would happen instantly, propagating at infinite speeds. Einstein showed otherwise; gravity isn't instant.
"The only options left were experimental approaches in clinical trials."
It temporarily puts the immune system on high alert to prevent MRSA, pneumonia, and other infections in the hospital.
A woman’s name would undermine the credibility of the mission. Names of former Nazis, however, were no problem.
For the very first time, an AR contact lens was worn on the eye of a human subject. And it has about 30 times the pixel density of an iPhone.
The nearby, bright star Fomalhaut had the first optically imaged planetary candidate. Using JWST's eyes, astronomers found so much more.
Thinkers like Richard Reeves, Louise Perry, and Judith Butler discuss parenthood and the future of the sexual revolution.
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The truth may be out there — but it’s not in these close encounters of the third kind.
Is it better to be the oldest sibling, the youngest, or in the middle?
A clock, designed and built in Europe, ran hopelessly at the wrong rate when brought to America. The physics of gravity explains why.