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Your weekly science news roundup is here.

Researchers have developed modified iron oxide particles, known as "smart rust", that can grab onto pollutants in water and help with their cleanup. The new method is cheaper and more simple than other alternatives, they say.

Researchers developed a new approach for simulating seafood, using plant-based proteins and a 3D printer, and used it to make a snack inspired by fried calamari rings from squid.

Researchers explored the effects of adding oil to tempera paint to improve understanding of how various paint formulas would affect the appearance of finished works.

Concrete is the most important building material on Earth – and it’s also responsible for a MASSIVE chunk of global carbon emissions. Find out how a surprising discovery in 1973 could dramatically change how we make concrete forever.

In this video, Justin from the Institute of Human Anatomy discusses how lactose is metabolized in the body, the eventual slowdown and ceasing of lactase, what happens to the colon when bacteria start consuming lactose and the relevant anatomy of the digestive tract.

New computer simulations to represent the real conditions of newly formed sea spray aerosols have been designed. The researchers hope this “computational microscopy” will help improve understanding of and predict climate impacts of sea spray aerosol.

The World Health Organization recently added aspartame, an artificial sweetener used in diet soda and tea, to its list of possibly carcinogenic substances. But will diet soda really give you cancer?

Some of us really do attract mosquitos more than others, based on the chemicals exuded from our skin. What are they, how did scientists figure it out and how can you outsmart them anyways?

Should you be on a low-sodium diet? What actually happens to your body and brain when you reduce salt?