How Vera Rubin broke barriers in astronomy
In the past 50 years, thanks to Vera Rubin and others, dark matter has become an essential scientific building block, at the foundation of our understanding of the universe.
Are Your Online Passwords as Safe as You Think?
Hackers can crack a 7-character password in seconds. But it can take 100 years to crack a 12-character one when it has letters, numbers and symbols. Here's one strategy to make one.
New map of the universe hints that dark energy may be evolving
An international group of astronomers have announced a hint that could fundamentally change what we think we know about the universe—and how we think it might come to an end.
Are winters getting less snowy?
Winters are getting warmer and they’re also getting shorter. So we’re getting less snow ... right?
Decoding the Universe: Cosmos Preview
How big is the universe? Will it ever end? Why is so much of it made of mysterious dark matter and energy? See how mind-bending discoveries over the past 50 years have revolutionized our understanding of the universe.
How America watched the solar eclipse
Cities across the US dipped into darkness during a total solar eclipse. Here’s what it looked like as seen by Americans all over the country.
The Sun is way more chaotic than you think
A solar eclipse provides precious moments of darkness where scientists can explore a region of the Sun normally invisible, its outer atmosphere, the solar corona.
Great American Eclipse Preview
Explore the spectacular cosmic phenomenon of a total solar eclipse. In April 2024, the Moon’s shadow is sweeping from Texas to Maine, as the U.S. witnesses its last total eclipse until 2044, and scientists scramble to unlock the secrets of our Sun.
How to watch the eclipse without burning your eyes
Looking at the sun without eclipse glasses, even when 99% of the Sun is covered by the Moon, can cause retinal damage in your eye. Here’s the science behind why, and how you can protect your eyes.
How Deepfakes Manipulate Reality
Correspondent Miles O’Brien investigates the world of A.I.-enabled deep fake imagery.
How Large Language Models Like ChatGPT Work
By recognizing patterns in billions of words, these models can make guesses at the next word in a sentence but to do that well, the AI also has to understand the sentence.
The Birth of Artificial Intelligence
Artificial intelligence might seem like something new but human beings have wondered for a very long time: can machines think like humans?
How A.I. is fighting wildfires
In California an AI tool uses more than a thousand mountaintop surveillance cameras to look for early signs of wildfires.
A.I. Revolution Preview
A.I. tools like ChatGPT seem to think, speak, and create like humans. But what are they really doing? From cancer cures to Terminator-style takeovers, leading experts explore what A.I. can – and can’t – do today, and what lies ahead.
Rare stellar explosion will ignite a "new star"
The star system will become bright enough to see with the naked eye for several days before it dims again for about 80 years.
The discovery of worlds beyond our solar system
In the early 90s’ scientists combed through data and found something surprising that led to the discovery of planets beyond our solar system. It changed science forever.
Secrets in Your Data Preview
Whether you’re on social media or surfing the web, you’re probably sharing more personal data than you realize. Find out where your data is going, who’s selling it, and how you – and a new kind of web – could put control back in your hands.
How to make your data more private online
Online privacy isn’t a switch—it’s a dial. And you get to control how much data you share, and with who. Here’s how to make your data more private.
Is your phone listening to you?
A product you were just talking about pops up in an online ad. How? Advertising algorithms are so good that they may know what you want even before you do.
The force that makes up more than half of the universe
Astronomers looked at extremely distant and extremely bright exploding stars and discovered that universe is not just expanding - it’s accelerating in its expansion.
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