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Advanced error model enhances urban vehicle navigation accuracy

In an advance for vehicle navigation, researchers have developed an advanced system that integrates Global Navigation Satellite Systems (GNSS), Inertial Measurement Units (IMU), and Light Detection and Ranging (LiDAR) Odometry ...

AI and physics unite for meta-antennas design

Ka-band metasurface antennas, with their low-cost, low-profile design and superior beam-steering capabilities, show significant potential in the field of satellite communications. However, the constraints of limited satellite ...

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Satellite service DirecTV buys rival Dish as it fights the onslaught of streaming services
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Federal broadband subsidies boosted rural internet, but service faded once funding ended, researchers find
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From quantum to wireless: Enhancing chip-scale communication with terahertz tech
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Building a worldwide map of light pollution with inexpensive sensors
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A new twist on observing start of fires using advanced real-time image processing
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New method could decrease number of satellites needed for global coverage
Engineering
New 2D metamaterial enhances satellite communication for 6G networks
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Developing GaN transistors and high-power amplifiers for millimeter wave satellite communications
Business
Verizon is buying Frontier in $20B deal to strengthen its fiber network
Hardware
Chip that steers terahertz beams sets stage for ultrafast internet of the future
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Researchers develop reconfigurable MIMO-based self-powered battery-less light communication system
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Reconfigurable smart antenna offers low complexity and high gain
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Silicon chip propels 6G communications forward
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Researchers innovate optical microchips with applications for sensing and communications
Internet
A third of the world lacks internet connectivity—airborne communications stations could change that
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Precision orbit overhaul: LEO satellites team up to refine GPS accuracy

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Earth Sciences
Himalayas formation may have destroyed at least 30% of continental crust in collision zone
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Astronomers investigate the evolution of a supersoft X-ray source
General Physics
Astrophysicists find evidence that Alfvén waves lead to heat generation in the magnetosphere
Environment
Air pollution from fires linked to 1.5 million deaths a year
Paleontology & Fossils
Peru scientists unveil crocodile fossil up to 12 million years old
Astrobiology
Scientists reveal possible role of iron sulfides in creating life in terrestrial hot springs
Plants & Animals
Chemical replacement of TNT explosive more harmful to plants, study shows
Bio & Medicine
Nanorobot hand made of DNA grabs viruses for diagnostics and blocks cell entry
Nanomaterials
Nanostructures pave the way for advanced robotics—and mini dinosaurs
Astronomy
An improved quantification of the intergalactic medium and cosmic filaments
Earth Sciences
Oceans emit sulfur and cool the climate more than previously thought
Earth Sciences
New technique allows researchers to look deep within tectonic plates
Plants & Animals
Biologists identify traits correlating with all bird extinctions since 1500
Evolution
Scientists discover shared genetic foundations between musical rhythm and human language
General Physics
Improved spin and density correlation simulations give researchers clearer insights on neutron stars
Evolution
Brains grew faster as humans evolved, study finds
Earth Sciences
Seemingly simple climate adaptation strategy could backfire
Plants & Animals
Why the hunt for Thanksgiving's favorite bird could get tougher
Quantum Physics
Making quantum physics easier to digest in schools: Experts encourage focus on two-state systems
Bio & Medicine
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Communications system achieves fastest laser link from space yet

In May 2022, the TeraByte InfraRed Delivery (TBIRD) payload onboard a small CubeSat satellite was launched into orbit 300 miles above Earth's surface. Since then, TBIRD has delivered terabytes of data at record-breaking rates ...

Researchers realize a high-speed uni-traveling-carrier photodiode

Photodiodes with high speed and efficiency are particularly advantageous to the exponential growth of data communication traffic. However, vertical detector design still faces difficulties in improving high responsivity while ...

A navigation system with 10 centimeter accuracy

Researchers of Delft University of Technology, Vrije Universiteit Amsterdam and VSL have developed an alternative positioning system that is more robust and accurate than GPS, especially in urban settings. The working prototype ...