Have we been wrong about why Mars is red?
Peer-Reviewed Publication
Updates every hour. Last Updated: 28-Apr-2025 20:08 ET (29-Apr-2025 00:08 GMT/UTC)
The Red Planet’s iconic rusty dust has a much wetter history than previously assumed, find scientists combining European Space Agency (ESA) and NASA spacecraft data with new laboratory experiments on replica Mars dust. The results suggest that Mars rusted early in the planet’s ancient past, when liquid water was more widespread.
A team of international researchers including Dr Jake Taylor from the Department of Physics at the University of Oxford, has used the James Webb Space Telescope (JWST) to explore the exotic atmosphere of LTT 9779 b, a rare ‘ultra-hot Neptune’. The results have been published today (25 February) in a compelling new study in Nature Astronomy.
Scientists have found Siamese fighting fish are typically kept in containers just one-quarter the size they need to thrive, challenging decades of retail practice in the ornamental fish industry worldwide.
A new study reveals how the brain’s "place cells" create internal maps to help us navigate. These specialized neurons, found in the hippocampus, were once thought to rely on precisely ordered patterns for spatial coding. However, researchers have found that their activity, which appears disordered in large spaces, actually follows universal mathematical principles. This surprising discovery suggests that randomness, not strict organization, is key to how our brains encode information about our experiences. The findings could reshape our understanding of brain function and pave the way for new insights into how we represent and process complex information.
Researchers of photonics from Tampere University, Finland, and Kastler-Brossel Laboratory, France, have demonstrated how self-imaging of light, a phenomenon known for nearly two centuries, can be applied to cylindrical systems, facilitating unprecedented control of light’s structure with great potential for advanced optical communication systems. In addition, a new type of space-time duality is explored for powerful analogies bridging different fields of optics.