Researchers gauge the willingness of small-scale fishers to adopt vessel tracking systems

A researchers discusses vessel tracking system gear with a group of artisanal fishers in Indonesia. Credit: University of California – Santa Barbara Roughly half of all global seafood is caught by artisanal fishers—individuals who operate on small, often subsistence scales, and who generally fish a short distance from the coast. Though diminutive in comparison to … Read more

Stellar Flybys Leave a Permanent Mark on Newly Forming Planetary Systems

What do UX Tauri, RW Aurigae, AS 205, Z CMajoris, and FU Orionis have in common? They’re young stellar systems with disks where planets could form. It appears those disks were disturbed by stellar flybys or other close encounters in the recent past. Astronomers want to know: did those events disrupt planet formation in the … Read more

How social protection systems facilitate demographic change in Sub-Saharan Africa

Credit: Unsplash/CC0 Public Domain More than 1.1 billion people live in Sub-Saharan Africa today, and this number is expected to double by 2050. Yet many governments in the region struggle with providing sufficient schools, hospitals, food and clean water for their populations. Many countries are trapped in a vicious cycle of population growth and poverty. … Read more

Astronomers Have a New Way to Find Exoplanets in Cataclysmic Binary Systems

Have you heard of LU Camelopardalis, QZ Serpentis, V1007 Herculis and BK Lyncis? No, they’re not members of a boy band in ancient Rome. They’re Cataclysmic Variables, binary stars that are so close together one star draws material from its sibling. This causes the pair to vary wildly in brightness. Can planets exist in this … Read more

Study finds ultimate limits of spaceplates in optical systems

Conceptual image of a spaceplate reducing the distance at which light is focused over a broad range of wavelengths. Credit: Monticone Research Group Engineers working to miniaturize optical systems for modern electronics have seen great success when it comes to the most familiar components, the lenses and optical sensors. It’s been more challenging to reduce … Read more

Natural systems in Australia are unraveling. If they collapse, human society could too

Credit: Shutterstock In the long-delayed State of the Environment report released this week, there is one terrifying sentence: “Environmental degradation is now considered a threat to humanity, which could bring about social collapses.” Hyperbole? Sadly not. Climate change has already warmed Australia 1.4℃ and changed rainfall in some regions. Natural ecosystems are already struggling from … Read more

Amid climate change and conflict, more resilient food systems a must, report shows

Credit: Pixabay/CC0 Public Domain Increased demand for water will be the No. 1 threat to food security in the next 20 years, followed closely by heat waves, droughts, income inequality and political instability, according to a new University of Colorado Boulder-led study which calls for increased collaboration to build a more resilient global food supply. … Read more

This is How You Get Multiple Star Systems

Stars form inside massive clouds of gas and dust called molecular clouds. The Nebular Hypothesis explains how that happens. According to that hypothesis, dense cores inside those clouds of hydrogen collapse due to instability and form stars. The Nebular Hypothesis is much more detailed than that short version, but that’s the basic idea. The problem … Read more

New 3D model will help guide exploration for rare earth element deposits in alkaline igneous systems

A world map showing rare earth element-high field strength element (REE-HFSE) deposits and alkaline-silicate complexes mentioned in the main text. Alkaline-silicate complexes with and without carbonatite are shown in white, and systems containing major carbonatite-associated REE deposits are shown in gray. The crustal basement thickness map is an inversion of satellite gravity data (Alvey et … Read more