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The properties of nanomaterials could be easier to predict in future

https://www.mpg.de/7469095/excess-volume_grain-size-nano-material

The spacing of atoms in crystal lattices of nanomaterials initially contracts as the grain size falls, but expands again below a critical value, as a team of researchers headed by Eric Mittemeijer from the Max Planck Institute for Intelligent Systems has established. Accordingly, surface stress and excess volume compete in nanopowders as the ratio of surface to volume increases in the individual nanoparticles, so that the crystals become distorted.
Materials scientists have known for some time that the same material can exhibit

Migratory birds have lighter-colored feathers

https://www.mpg.de/17954481/1203-orni-migratory-birds-have-lighter-colored-feathers-154562-x

Migratory birds are specially adapted to find their way over extreme distances that represent remarkable tests of endurance. Now, researchers of the Max Planck Institute for Ornithology in Seewiesen and colleagues have discovered an unexpected way that migratory birds keep their cool during such arduous journeys: lighter-colored feathers.
Around that same time, the researchers came across studies by others showing that

Cosmic weight watching reveals black hole-galaxy history

https://www.mpg.de/4440749/weighing_black_hole_galaxy

Using state-of-the-art technology and sophisticated data analysis tools, a team of astronomers from the Max Planck Institute for Astronomy has developed a new and powerful technique to directly determine the mass of an active galaxy at a distance of nearly 9 billion light-years from Earth. This pioneering method promises a new approach for studying the co-evolution of galaxies and their central black holes. First results indicate that for galaxies, the best part of cosmic history was not a time of sweeping changes.
value of the galaxy’s central black hole, which the researchers measured from the same