Issue #36
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Laser-Powered Lightsails: A Step Closer to Interstellar Travel
Researchers have made major breakthroughs in developing scalable, laser-powered lightsails, which could transform space exploration. These innovative lightsails are propelled by laser radiation pressure, offering a promising method for interstellar travel. One recent development involves miniature lightsails that are successfully accelerated by lasers, proving the concept viability.
Scientists are also working on improving the efficiency of lightsails by designing new materials. Pentagonal photonic crystal mirrors have been created to boost acceleration and reduce manufacturing costs. These mirrors feature nanoscale holes that increase reflectivity and lower mass, which is key for long-distance missions.
These advances align with projects like Breakthrough Starshot, aiming to send lightweight probes to Alpha Centauri using laser-driven sails. The combination of these new technologies is expected to make interstellar travel a real possibility in the coming decades.
Chinese Drones Use Lasers to Count Trees
Scientists in China have developed laser-equipped drones that can quickly and accurately count trees in large forests. The drones use LiDAR technology, which bounces laser beams off objects to measure distances and create detailed 3D maps. This method is faster and more precise than manual counting, helping researchers track deforestation and monitor forest health.
The system can even identify different tree species by analyzing their shapes and sizes. This innovation could improve conservation efforts and make it easier to manage forests sustainably. Similar technology might someday be used in agriculture or urban planning.
Thales Upgrades Bushmaster to Stop Drones
The defense company Thales has added anti-drone capabilities to its Bushmaster armored vehicle. The upgraded system can detect, track, and disable enemy drones using electronic jamming and other countermeasures. This makes the Bushmaster even more versatile in modern combat, where drones are increasingly used for surveillance and attacks.
The new technology helps protect troops from drone threats without needing extra vehicles or equipment. Thales plans to test the system further before making it available to military forces. This upgrade reflects the growing need for anti-drone defenses in warfare.