Goldilocks Zone: A new framework suggests why Earth succeeded while Mars and Mercury failed
Sandeep K S
Nov 29
1 min read
Diagram illustrating the essential factors for a habitable planet: the right elemental mix, a balanced budget of volatiles, a powerful magnetic shield, and a persistent internal heat engine, emphasizing their roles in supporting Earth's habitability compared to Mercury and Mars.
In visible light, it looks like a normal galaxy. In infrared, it reveals a monster. Meet Virgil, the galaxy that is rewriting black hole history.
Before JWST, astronomers believed galaxies grew first, nurturing small black holes that grew slowly over time.
Virgil breaks this rule. Its black hole is "Overmassive"—far larger than its host galaxy should be able to support. It's like finding a skyscraper engine inside a compact car.
JWST has found evidence of a thick atmosphere on the ultra-hot Super-Earth TOI-561 b, challenging the idea that such close-in worlds are barren rocks.
TOI-561 b is an "Ultra-Short Period" planet, orbiting its star in less than 11 hours. It is tidally locked, meaning one side faces the star forever.
Westerlund 1 is the biggest star cluster in our galaxy. New data reveals it acts as a colossal particle accelerator, blasting a hole through the Milky Way's disk.
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