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Example evolution of an unstable system with 5 one-Neptune-mass planets. Top: the semi-major axes of individual planets are plotted as solid lines. Orbits’ radial extents between pericenter and apocenter are

Core 1494Da Hemoglycin, ball and stick model. Atom labels: Hydrogen white, Carbon black, Nitrogen blue, Oxygen red, Iron green. — physics.chem-ph The empty, extensive low-density lattice topology of hemoglycin is

Graphical Abstract — Bar-Ilan University A new study by researchers at Bar-Ilan University has uncovered that certain ocean viruses—specifically RNA viruses—may disrupt how carbon and nutrients are recycled in the

Astrochemistry Status Report astro-ph.EP July 16, 2025 The final solid surface density of various elements in disks around 1 M⊙ stars. Select elements are shown using three different units and

Viking 2 Landscape — NASA Due to extreme temperatures and the dryness of Mars, it’s thought to be impossible for liquid water to form on the planet’s surface, a critical