Science Feed - Page 55
25d ago
Environment
New Mexico to Invest $500 Million in Water from Controversial Sources
New Mexico is investing $500 million in purchasing water from controversial sources, such as treated oilfield wastewater, to address water scarcity.
26d ago
Animals
Community Contributions for Adoptable Animals
Learn about adorable animals in need of homes and how you can adopt them.
26d ago
Physics
Ask Ethan: Is it possible that gravity isn’t quantum?
For generations, physicists have been searching for a quantum theory of gravity. But what if gravity isn't actually quantum at all?
26d ago
Space
Asteroid Will Pass in Front of Bright Star Betelgeuse to Produce a Rare Eclipse Visible to Millions
One of the biggest and brightest stars in the night sky will momentarily vanish as an asteroid passes in front of it to produce a one-of-a-kind eclipse.
26d ago
Environment
Massive Iceberg A23a: What We Know So Far
A massive iceberg, known as A23a, is currently moving northward from Antarctica. Here's what we know about its origin, trajectory, and the potential impact of climate change.
27d ago
Animals
The Best Pets Moments of 2023
Look back at some of this year's most heartwarming moments with dogs, cats and even an alligator!
27d ago
Physics
Self-assembled Photonic Cavities with Atomic-Scale Confinement
Researchers have developed a method for self-assembling photonic cavities with atomic-scale confinement, enabling extreme light confinement and opening up new possibilities for nanophotonic devices. The study, conducted by scientists at the Technical University of Denmark, combines surface forces and conventional lithography and etching techniques to create suspended silicon nanostructures with void features well below the diffraction limit. The researchers demonstrated the fabrication of waveguide-coupled high-Q silicon photonic cavities that confine telecom photons to 2 nm air gaps with an aspect ratio of 100, resulting in mode volumes more than 100 times below the diffraction limit. Scanning transmission electron microscopy measurements confirmed the sub-nanometer dimensions of the devices. The use of self-assembly in combination with planar semiconductor technology could lead to the development of a new generation of nanophotonic devices that combine atomic-scale confinement with the scalability of planar semiconductors.
27d ago
Space
NASA Updates Proposal for ISS Retirement and Funding for Commercial Replacements
NASA celebrates the milestone mission of docking the first two ISS modules and updates its proposal for the retirement of the station. Early stage funding is underway for commercial replacements run by private companies with NASA as a customer.