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The Invisible Ray
Trends
- 1Pentagon approves DHS test of 'heat ray' weapon at southern border●This is deeply disturbing. The Pentagon has approved letting DHS test a military “heat ray” weapon for use at the southe
The Pentagon has approved a plan letting the Department of Homeland Security test the Active Denial System, a military 'heat ray' weapon, for use at the southern border, according to a September memo obtained by CNN. The device fires an invisible energy beam that heats the skin's surface, causing a burning sensation intended to disperse crowds. Critics are calling the move deeply disturbing, raising concerns about deploying an anti-crowd military weapon against migrants at the border.
- 2Scientists explain how bending light could enable invisibility▼To turn invisible, we need to tweak the path light travels
A new report on the science of invisibility says the key lies in controlling the path that light takes around an object. By tweaking how light travels, materials could in principle guide rays around a space, making whatever is inside undetectable to the eye. Researchers continue to study metamaterials and other approaches to achieve this effect.
- 3Crab Nebula composite images combine X-ray, optical and infrared views●Composite observations of the Crab Nebula reveal the complex synergy between different regions of the electromagnetic sp
New composite observations of the Crab Nebula are being highlighted, combining X-ray data from NASA's Chandra observatory, optical images from Hubble, and infrared readings from Spitzer. By layering these views across the electromagnetic spectrum, researchers can map how the pulsar wind nebula interacts with its surrounding supernova remnant. The images showcase how multi-wavelength astronomy reveals structures invisible to any single telescope.