A research team from Aarhus University has measured and explained the exceptionally low thermal conductivity of the crystalline material AgGaGe₃Se₈. Despite its ordered structure, the material behaves like a glass in terms of heat transport – making it one of the least heat-conductive crystalline solids known to date. The reason? The silver atoms move erratically in the lattice and break down the thermal transport.

The European Space Agency-led Solar Orbiter mission has split the flood of energetic particles flung out into space from the Sun into two groups, tracing each back to a different kind of outburst from our star.

Prof Heidi Newberg is an astrophysicist at Rensselaer Polytechnic Institute. Her research focuses primarily on understanding the structure of our own galaxy through using stars. In a newly published Frontiers in Astronomy and Space Sciences article, she and her co-authors lay out the case that a telescope with a rectangular mirror, rather than a roughly circular one as is used in traditional telescopes, could provide a clearer path to discovering habitable worlds. In the following guest editorial, she highlights the feasibility and advantages of this design.

A new study by an SUTD researcher and his collaborators introduces a pooled mining attack that overturns a long-standing assumption about Bitcoin’s security economics.