But, wait! Perhaps it is not so. A new study has proposed the speed of light in a vacuum has not always been the same value it is now (299,792,458 meters per second), and was in fact slightly higher at the beginning of the universe 13.8 billion years ago.

Now the Cassini spacecraft has gradually shifted into an orbit that takes it over the planet’s north and south poles and then down into a series of increasingly vertiginous-looking dives perpendicular to the plane of its buttery glowing rings.

For the first time, researchers have found evidence that underwater ecosystems have pollinators that perform the same task as bees on land.

The effort to unify quantum mechanics and general relativity means reconciling totally different notions of time.

1969 and all that. German scientists want to send two mobile probes to the Moon, which they say will be able to inspect the lunar rover left behind by the Apollo 17 mission in 1972. Yep, as well as test-driving new technologies and exploring the lunar surface…

Foreplay is involved. Tardigrades don't need any help in the weird department - the tiny creatures, also known as water bears, are only a few hundred micrometres long, but are almost impossible to kill. They can survive in the vacuum of space, endure total…

A mysterious sea blob that looks like a psychedelic Slinky has finally been spotted, more than a century after it was first described.

Our mathematical Universe is not what it seems. Our entire understanding of the Universe is based in no small part on the mathematical models and simulations that scientists come up with to explain the weirdly consistent patterns that keep cropping up in…

Using data from NASA’s Messenger spacecraft, researchers have discovered a 620-mile-long, 250-mile-wide and 2-mile-deep valley on the planet’s southern hemisphere. It’s about the size of Montana and twice as deep as the Grand Canyon. In the elevation map…

We might have been wrong about Parkinson's this whole time. A new study adds to a growing body of research that suggests we might have been thinking about Parkinson's disease wrong this whole time. Instead of being isolated to the brain, new evidence in mice…

If we're going to one day find life beyond Earth, then we need to know where to look, and scientists have identified another potential habitat where aliens could be lurking.

This could explain a lot. Brain connections in people with autism spectrum disorder (ASD) show more symmetry across the right and left hemispheres, suggesting that tasks are being divvied up in the brain in a very different manner from those without autism.…

Physicists at the National Institute of Standards and Technology (NIST) have combined two experimental atomic clocks based on ytterbium atoms to set yet another world record for clock stability. Stability can be thought of as how precisely the duration of…

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Yikes The Antarctic research station that originally discovered the ozone hole in Earth's atmosphere during the 1980s is now facing a different kind of environmental crisis that's much closer to home. A huge ice chasm nearby that was dormant for 35 years…

Astronomers have observed the birth of one of the most massive objects in our Universe - a huge galaxy cluster known as the Spiderweb Galaxy - and they've shown that it formed in a totally different way than we expected.

City sidewalks and brick buildings look a little greener today, thanks to new research showing that cement can soak up CO2. That’s not the only good news to come out this week. A team of German scientists engineered photosynthesis to be faster and more efficient.…