Could alien life be detectable from reflected light alone? Today's episode covers a breakthrough complexity-metric study, expanded Mars clay deposits strengthening the ExoMars case, JWST's stunning protostar jet imagery, and a G1-G2 geomagnetic storm watch.
Audio is available on Spreaker — see link below.
A new study just published in the Astronomical Journal makes a straightforward but significant claim: you might be able to detect life on another planet just by analyzing the complexity of its reflected light. No chemical samples.
Staying with Mars, the geological case for ancient life there just got a little stronger. New mapping confirms that clay deposits in Oxia Planum and Mawrth Vallis stretch across roughly six hundred kilometers and rise nearly one kilometer in altitude.
Webb has also delivered a new infrared image worth paying attention to. The target is Herbig-Haro forty-six and forty-seven, a binary protostar system, and the detail in the image is striking.
On space weather, conditions are currently elevated. Two coronal mass ejections from June ninth and eleventh are expected to deliver glancing blows to Earth today.
The through-line across today's developments is that the tools and targets for finding evidence of life, past or otherwise, are getting more precise. The complexity metrics study moves life detection closer to something achievable with current infrastructure.
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