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University of Arizona

— Medical

Natural food additive found to block skin cancer cells in mice

A latin American seed once used by Mayans as body paint and today as an orange food coloring in your cheddar cheese may prove useful in the fight against skin cancer. Scientists have found that a compound found in natural food additive annatto prevents the formation of cancer cells resulting from UV radiation in mice, and are now exploring whether annatto-rich diets can prevent similar sun damage in humans.

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— Space

First images ever taken of a planet being formed, 450 light-years from Earth

Of the many new exoplanets discovered over the past two decades, all have been identified as established, older planets. Some with incredible winds raging across their surfaceand others that may be able to support life because of their position in the habitable zone, but none have been acknowledged as newly-forming protoplanets. Now scientists working at the Keck observatory have spied just such a planet in the constellation of Taurus, some 450 light-years from Earth, that is only just beginning its life, collecting matter and spinning into a brand new world.

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— Biology

Secrets of Bombardier beetle's superheated defensive spray revealed

The bombardier beetle has a unique defensive mechanism. It induces a chemical explosion inside its shell to create a boiling, toxic liquid which it sprays at its aggressor. Now researchers in the US have discovered how it does this, and they hope that further study of the conditions inside the beetle that allow it to produce the jet without harming itself may inform real world technologies.

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— Space

Earth-sized virtual telescope to study supermassive black hole at center of Milky Way

In astronomy, much like many other other aspects of life, bigger is better. Taking this adage to heart, astronomers at the University of Arizona are helping to build a virtual radio telescope the size of the Earth itself. With a resolution factor more than a thousand times greater than that of the Hubble Space Telescope, the new Event Horizon Telescope (EHT) will be used to study in fine detail the supermassive black hole at the center of our Milky Way. Read More
— Medical

Researchers identify how cells get their orders to heal wounds

When you cut on your finger or scrape your knee, cells rush to the wound and repair or replace the damaged tissue. But how exactly this works – in particular how certain cells become "leaders" in the process – has long been a mystery. Now researchers at the University of Arizona (UA) have identified the mechanisms that cause and regulate this collective cell migration. Armed with this knowledge, biomedical engineers will be able to design new tissue regeneration treatments for diabetes and heart disease as well as for slowing or stopping the spread of cancer. Read More
— Space

NASA's NEOWISE discovers its first new near-Earth asteroid since returning to work

NASA's Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) may have only come back online last September after a 31-month hibernation, but it’s already producing results. According to the space agency, the unmanned spacecraft discovered a never-before-seen asteroid on December 29 – the first discovery of its new mission to seek out potentially hazardous near-Earth objects (NEOs). Read More
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