Origin of Earth’s Water: A New Hypothesis Has Entered the Chat

Origin of Earth’s Water: A New Hypothesis Has Entered the Chat

For decades, scientists have been trying to work out just how the Earth got all its water, and the prevailing theory was that comets and asteroids brought it, and we have evidence for that mechanic; however, a new hypothesis has provided evidence that the water was already here, locked away in hydrous minerals in a very iron-poor core. Plus, magnetic fields, subatomic particles, life on the ocean floor, a geology mystery solved, and this week in rocket history covers a space shuttle mission with some really neat science.

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The Curious Case of the Brown Dwarfs at 14 Herculis

The Curious Case of the Brown Dwarfs at 14 Herculis

A dynamical analysis of the 14 Herculis system has revealed the existence of two brown dwarf planets orbiting in completely misaligned, eccentric orbits. Plus, weird ice in Chicago, the ongoing debate about liquid water on Mars, one rocket goes up while a capsule comes down, and we interview Dr. Knicole Colon from the JWST mission.

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JWST and the 30 Days of Terror

JWST and the 30 Days of Terror

With the successful launch of the JWST, the focus turns to the complicated process of unfurling the sunshield and unfolding the mirror. We’ll look at just where NASA is in the process and how much farther we have to go before first light. Plus, Earth and supernovae, and in this week’s What’s Up, we look forward to 2022’s astronomy events.

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Massive Thwaites Glacier in Antarctica at Risk of Collapse

Massive Thwaites Glacier in Antarctica at Risk of Collapse

A team of scientists collected cores and modeled ice cliff failure and found that Thwaites Glacier in Antarctica is melting more quickly than ever and could be at risk of collapse, threatening global coastlines with almost a meter of sea-level rise. Plus, new results from Percy, and this week’s What’s Up.

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