Scientists discover molten layer covering Martian core

NASA's InSight mission to Mars helped scientists map out Mars' internal structure, including the size and composition of its core, and provided general hints about its tumultuous formation.

Simulating the three-dimensional morphology of kilonovae

An advanced new three-dimensional (3D) computer simulation of the light emitted following a merger of two neutron stars has produced a similar sequence of spectroscopic features to an observed kilonova.

Five tips for a sustainable Halloween

Halloween is the spookiest time of the year. However, as you prepare to send shivers down the spines of your friends and family, you may not have given much thought to the environmental footprint that this holiday conceals.

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