(Credit: Vadim Sadovski/Shutterstock)
Legions of metal nuggets swirl about our solar system. Metallic asteroids number in the millions, but they’re relatively quite rare—bits and pieces of lonely matter that never became planets.
Occasionally, they find a home. A tiny fraction of these dull, misshapen hunks of metal have rained onto our planet for millennia, sparking briefly alight as they kiss the atmosphere before biting deep into the planet’s surface—if the ...read more
Regular readers will know of my interest in the theory that ketamine is a rapid-acting antidepressant. I’ve blogged about developments in ketamine-depression research for several years now, my interest being spurred partly by my own struggles with depression.
As I’ve said previously, the research on ketamine as an antidepressant is promising, but I do not think it is possible to say yet how ketamine works in depression. I think it is possible that ketamine’s apparently powerfu ...read more
This set of images shows the gravitationally lensed galaxy clusters where astronomers discovered the most distant star ever seen. The star, nicknamed Icarus, is marked by the white arrow in the bottom inset image. (Credit: NASA/ESA/P. Kelly (University of California, Berkeley))
In a study published today in Nature Astronomy, an international team of researchers announced the discovery of the most distant star ever observed. The team detected the blue supergiant star — whic ...read more
The launch of a Zipline delivery drone that can parachute medical supplies to remote hospitals and clinics. Credit: Zipline
Delivery drones can be game changers if they go beyond merely offering convenience to becoming lifesaving technologies on a daily basis. That has already become reality in Rwanda, where a Silicon Valley startup called Zipline uses delivery drones to make timely drop-offs to hospitals and clinics across the country. Now Zipline ...read more
Author Vishay SinghPosted on Categories Discover Magazine
