Democratizing air quality data at nearly no cost

Due to the high cost of air quality monitors, many countries don't have the tools in place to regularly monitor pollutants. Without routine measurements, policymakers cannot make evidence-based policy decisions to reduce ...

How China's massive water transfer shapes drinking water quality

Dissolved organic matter (DOM), originating from both natural and human activities, is a complex mixture of organic substances that can vary by season, location, and environmental conditions. DOM impacts the coagulation process, ...

Hubble views cosmic dust lanes

Featured in this new image from the NASA/ESA Hubble Space Telescope is a nearly edge-on view of the lenticular galaxy NGC 4753. Lenticular galaxies have an elliptical shape and ill-defined spiral arms.

Some clever ways to search for primordial black holes

Primordial black holes (PBHs) have recently received much attention in the physics community. One of the primary reasons is the potential link to dark matter. In effect, if PBHs can be proven to exist, there's a very good ...

Does the Milky Way have too many satellite galaxies?

The Large and Small Magellanic Clouds are well-known satellite galaxies of the Milky Way, but there are more. It is surrounded by at least 61 within 1.4 million light years (for context the Andromeda galaxy is 2.5 million ...

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