For over a century, doctors have used electrocardiograms (EKGs) to render the invisible electrical activity of the human heart visible, using the pulse to diagnose disease before it becomes fatal. Now, scientists have invented a way to do the exact same thing for the places where most of humanity lives: cities.

In a recent study published in the Proceedings of the National Academy of Sciences (PNAS), researchers have introduced the concept of the “Urban Pulse.” By using dense, high-frequency satellite imagery, the team has successfully tracked the dynamic, real-time metabolic activity of urban environments, effectively measuring the heartbeat of a city.

SAN ANTONIO — June 8, 2026 — Southwest Research Institute scientists modeled the early impact history of Earth, seeking insight into potential origins of life. These models show that asteroid impacts on the early Earth plowed up surfaces and generated hydrothermal systems, environments where life could have evolved.

Scientists detected a quasar flickering from the very early universe, a time known as the “cosmic dawn,” just 850 million years after the Big Bang. This is the earliest flickering quasar detected to date.

Tokyo, Japan – Researchers from Tokyo Metropolitan University have used simulations to show that a newly developed, compact X-ray telescope could be used to map the chemical composition of the entire Moon surface, a vital breakthrough for understanding its geological evolution. Detailed modeling of the detector and a realistic satellite mission show that two years would be enough to map five key elements, while an array of five-by-five detectors could improve resolution and get results faster.

A new pharmaceutical production method could allow astronauts on long space missions to "grow" fresh medicines on demand using plants. The work could also bring low-cost pharmaceutical production to resource-limited areas on Earth.

The IAA SETI Committee announced today updated rules for evaluating and revealing the detection of extraterrestrial intelligence.

The revised Declaration of Principles marks the first major update to the protocols in more than 15 years and reflects a media landscape transformed by social media, artificial intelligence and the 24-hour news cycle.

“The release of these updated rules and protocols marks an important step in acknowledging both the radically different media landscape that science functions within today, and the vastly expanded efforts in terms of technology and resources being deployed in the search for intelligent life beyond Earth” said Bill Diamond, President and CEO of the SETI Institute and IAA SETI Committee member. 

A University of Manchester astronomer has led a major international overhaul of the rules that would govern how scientists announce evidence of extraterrestrial intelligence to the world.

An international team lead by the Max Born Institute has developed a new type of momentum microscopy to image magnons — the quanta of collectively excited spins — directly in two-dimensional reciprocal space using soft X-rays. Owing to its remarkable sensitivity, simplicity, and access to nanometer-scale wavelengths, this novel technique establishes a powerful and versatile platform for exploring nonlinear magnon interactions, which are promising for future computing schemes.