Hubble identifies unusual wrinkle in expansion rate of the universe

A collection of images from the NASA/ESA Hubble Space Telescope features galaxies that are all hosts to both Cepheid variables and supernovae. (Source: NASA / ESA  / Adam G. Riess (STScI, JHU) via CNN) A collection of images from the NASA/ESA Hubble Space Telescope features galaxies that are all hosts to both Cepheid variables and supernovae. (Source: NASA / ESA / Adam G. Riess (STScI, JHU) via CNN)

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G7 leaders end summit pledging to hurt Russia economically

Leaders of the world's wealthiest democracies struck a united stance to support Ukraine for 'as long as it takes' as Russia's invasion grinds on, and said they would explore far-reaching steps to cap Kremlin income from oil sales that are financing the war.

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