How to measure the health of online communities

Experts from the SNF Agora Institute at Johns Hopkins University and New_ Public have published an innovative new approach to measure the health of online communities. According to their report, titled "Dynamic Polycentrism," ...

Some intelligent civilizations could be trapped on their worlds

Evolution has produced a wondrously diverse variety of lifeforms here on Earth. It just so happens that talking primates with opposable thumbs rose to the top and are building a spacefaring civilization. And we're land-dwellers. ...

NASA's new experimental antenna tracks deep space laser

An experimental antenna has received both radio frequency and near-infrared laser signals from NASA's Psyche spacecraft as it travels through deep space. This shows it's possible for the giant dish antennas of NASA's Deep ...

Researchers release open-source space debris model

MIT's Astrodynamics, Space Robotics, and Controls Laboratory (ARCLab) announced the public beta release of the MIT Orbital Capacity Assessment Tool (MOCAT) during the 2023 Organization for Economic Cooperation and Development ...

Strong solar flare erupts from sun

The sun emitted a strong solar flare, peaking at 4:55 p.m. EST, on Dec. 31, 2023. NASA's Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event.

Aerogel could become the key to future terahertz technologies

High-frequency terahertz waves have great potential for a number of applications including next-generation medical imaging and communication. Researchers at Linköping University, Sweden, have shown, in a study published ...

NASA's space station laser comm terminal achieves first link

A NASA technology experiment on the International Space Station completed its first laser link with an in-orbit laser relay system on Dec. 5, 2023. Together, they complete NASA's first two-way, end-to-end laser relay system.

Video: Permafrost thaw: A silent menace

Ice is without doubt one of the first casualties of climate change, but the effects of our warming world are not only limited to ice melting on Earth's surface. Ground that has been frozen for thousands of years, called permafrost, ...

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