We’ve grown up with the idea that the universe will expand forever, meaning the "cosmological constant" is positive. What if ...
Astronomers have long thought the universe should look generally the same in every direction, but an anomaly in the radiation ...
Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than ...
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Where did the universe's magnetic fields come from?
How the universe got its large magnetic fields has remained one of the stickiest outstanding problems in astrophysics. Now, researchers have proposed a novel solution: a giant "dust battery" operating ...
This video shows the habitable zone around the star HD 20794 (in green) and the trajectory of the three planets in the system. Thirty years after the discovery of the first exoplanet, we detected more ...
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The narrow ...
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