Saturday 30 June 2018

Astronomers observe the magnetic field of the remains of supernova 1987A

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For the first time, astronomers have directly observed the magnetism in one of astronomy's most studied objects: the remains of Supernova 1987A (SN 1987A), a dying star that appeared in our skies over thirty years ago. In addition to being an impressive observational achievement, the detection provides insight into the early stages of the evolution of supernova remnants and the cosmic magnetism within them.
via Science Daily
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New photodetector could improve night vision, thermal sensing and medical imaging

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Using graphene, one of science's most versatile materials, engineers have invented a new type of photodetector that can work with more types of light than its current state-of-the-art counterparts. The device also has superior sensing and imaging capabilities.
via Science Daily

Finding the right balance for catalysts in the hydrogen evolution reaction

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A collaboration has optimized the balance between the catalytic activity in hydrogen generation and stability of metal nanoparticles coated with different numbers of graphene layers. The team found that coating the catalyst nanoparticles with three to five graphene layers provided samples that displayed high catalytic activity in hydrogen evolution as well as high stability in acidic solution. These findings should aid the development of economical processes for large-scale hydrogen production.
via Science Daily