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The light, rare element boron, better known as the primary component of borax, a longtime household cleaner, was almost mined to exhaustion in parts of the old American West. But boron could arguably be an unsung hero in cosmic astrobiology, although it's still not listed as one of the key elements needed for the onset of life.

The search for life-supporting worlds in the Solar System includes the Jovian moon Europa. Yes, it's an iceberg of a world, but underneath its frozen exterior lies a deep, salty ocean and a nickel-iron core. It's heated by tidal flexing, and that puts pressure on the interior ocean, sending water and salts to the surface. As things turn out, there's also evidence of ammonia-bearing compounds on the surface. All these things combine to provide a fascinating look at Europa's geology and potential as a haven for life.

For the first time, a complex, ring-shaped molecule containing 13 atoms—including sulfur—has been detected in interstellar space, based on laboratory measurements. The discovery closes a critical gap by linking simple chemistry in space with the complex organic building blocks found in comets and meteorites. This represents a major step toward explaining the cosmic origins of the chemistry of life.

Red Geysers are an unusual class of galaxy that contain only old stars. Despite having plenty of star-forming gas, Red Geysers are quenched. Astronomers have mapped the flow of gas in these galaxies and figure out why they're dormant.