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Spectroscopy

A 3D rendered image of the spiral galaxy NGC 4151, with a bright central region representing the active galactic nucleus. The image zooms in to show a glowing accretion disk surrounding a supermassive black hole, with twin jets of particles emanating from the disk's center. Colorful spectral lines are overlaid on the image, highlighting the iron fingerprints detected by XRISM's Resolve instrument.

XRISM Telescope Reveals Iron Fingerprints in Nearby Galaxy

Multiple Views of Venus' High-level Clouds. Credit: NASA/JPL

Mysterious missing component in the clouds of Venus revealed

Like Goldilocks, the team compared the number of galaxy clusters measured with predictions from numerical simulations to determine which answer was “just right.”

Matter comprises of 31% of the total amount of stuff in the universe

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