Scientists weigh the balance of matter in galaxy clusters

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A method of weighing the quantities of matter in galaxy clusters - the largest objects in our universe - has shown a balance between the amounts of hot gas, stars and other materials.
via Science Daily
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Atmosphere of midsize planet revealed by Hubble, Spitzer

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Two NASA space telescopes have identified the detailed chemical 'fingerprint' of a planet between the sizes of Earth and Neptune. No planets like this can be found in our own solar system, but they are common around other stars.
via Science Daily
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Fast radio burst pinpointed to distant galaxy

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In a rare feat, astronomers have pinpointed the place of origin of a fast radio burst, with a surprising outcome.
via Science Daily
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Methane vanishing on Mars

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Wind-driven erosion of minerals on Mars may be the reason why methane disappears so rapidly on the red planet. Saltation causes electrical charges, that can oxidize minerals and ionize gases like methane, making the ionized methane bond to the minerals. That is the explanation proposed by an interdisciplinary research group, based on laboratory experiments in a Mars-like environment.
via Science Daily
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Earliest example of merging galaxies

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Researchers have observed signals of oxygen, carbon, and dust from a galaxy in the early Universe 13 billion years ago. This is the earliest galaxy where this useful combination of three signals has been detected. By comparing the different signals, the team determined that the galaxy is actually two galaxies merging together, making it the earliest example of merging galaxies yet discovered.
via Science Daily
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