News
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PhysicsLevitating plastic beads mimic the physics of spinning asteroids
"Tabletop asteroids," buoyed by sound waves, hint at why some loosely bound space rocks have odd shapes and can’t spin too quickly.
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AstronomyNASA’s exoplanet count surges past 5,000
With a new batch of 60 confirmed exoplanets, the number of known worlds in our galaxy reaches another milestone.
By Liz Kruesi -
AstronomyThe universe’s background starlight is twice as bright as expected
Images from the New Horizons spacecraft suggest that light from all known galaxies accounts for only half of the cosmos’ visible background glow.
By Liz Kruesi -
Planetary ScienceDiamonds may stud Mercury’s crust
Billions of years of meteorite impacts may have flash-baked much of a primitive graphite crust into precious gemstones.