12/04/2021

New laser to help clear the sky of space debris

Researchers at the Australian National University (ANU) have harnessed a technique that helps telescopes see objects in the night sky more clearly to fight against dangerous and costly space debris.

Painting with semiconductors

AMOLF researchers Lukas Helmbrecht and Wim Noorduin have developed a reactive ink that can be painted on an equally reactive canvas. The ink reacts with the material on the canvas to become a semiconductor that emits colored ...

Upward lightning takes its cue from nearby lightning events

In the chaos of a thunderstorm, upward moving lightning occasionally springs from the tops of tall structures. Scientists don't fully understand how upward lightning is triggered; it is likely a combination of multiple environmental ...

New study: Thick sea-ice warms Greenland fjords

A new study led by Stockholm University Assistant Professor Christian Stranne shows that thick sea ice outside the fjords can actually increase the sensitivity of Greenlandic fjords to warming. Stranne and a team of researchers ...

How do we know if an asteroid headed our way is dangerous?

There are a lot of things that pose a threat to our planet—climate change, natural disasters, and solar flares, for example. But one threat in particular often captures public imagination, finding itself popularised in ...

Making music from spider webs

Spiders are master builders, expertly weaving strands of silk into intricate 3D webs that serve as the spider's home and hunting ground. If humans could enter the spider's world, they could learn about web construction, arachnid ...

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