Day in Review

 

DAY IN REVIEW A New Tool for 'Weighing' Unseen Planets The NEID instrument will help scientists determine the density of distant planets, which can reveal whether the planet is rocky, like Earth, or mostly gaseous, like Jupiter. › Read the full story Cosmic Magnifying Glasses Find Dark Matter in Small Clumps The mysterious material makes up most of the mass in the universe, yet scientists don't understand its fundamental properties. Hubble observations have provided new clues. › Read the full story

 

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