There's a crack forming on Rosetta's 67P: Is it breaking up?

Not all comets break up as they vent and age, but for Rosetta's comet 67P, the Rubber Duckie comet, a crack in the neck raises concerns. Some comets may just fizzle and uniformly expel their volatiles throughout their surfaces. ...

No time to waste to avoid future food shortages

During the past few weeks, empty supermarket shelves, without pasta, rice and flour due to panic buying, has caused public concerns about the possibility of running out of food. Australian farmers have reassured consumers ...

What do we define as urban green space?

When do we define a piece of nature in the city as a park? And when is something a tree or shrub? It may seem obvious, but in scientific literature the definitions vary quite a bit. That makes comparisons difficult. Environmental ...

New study expands the scope of aza-Friedel–Crafts reactions

From life-saving drugs and synthetic polymers to diverse advanced materials, the products containing organic compounds seem endless, thanks in part to regioselectivity, a feature in chemical reactions where a substituent ...

Three ways to improve scholarly writing to get more citations

Researchers from University of Arizona and University of Utah published a new paper in the Journal of Marketing that examines why most scholarly research is misinterpreted by the public or never escapes the ivory tower and ...

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