Kilonovae: Ambushing the standard candle in its own nest

Gamma-ray bursts (GRBs) are the most luminous and explosive transient phenomena in the universe after the Big Bang. A powerful tool for characterizing and classifying GRBs to allow them to be used as tracers of the expansion ...

Air quality up in some EU cities during pandemic lockdown

Air quality significantly improved in European metropolitan areas such as Milan and Madrid because of lockdown restrictions imposed to curb the spread of the coronavirus pandemic, European Union officials said Monday.

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