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Gaia-4b Confirmed, Solar Flare Watch & SpaceX Orbital Data Centers
Audio is available on Spreaker — see link below.
Gaia's final data yields the first exoplanet discovered by astrometry alone, while a new sunspot region triggers radio blackouts and SpaceX faces brutal physics limits on orbital AI data centers. Six stories covering the biggest space and astronomy news right now.
Audio is available on Spreaker — see link below.
Gaia stopped operating in January, but it just handed astronomers something they've never had before: an exoplanet discovered entirely through gravitational wobble, confirmed by no other method, detected by no other telescope. The planet is called Gaia-4b.
The second find is harder to explain. Gaia-5b weighs in at twenty-one Jupiter masses, which puts it in a category called a brown dwarf rather than a planet.
The broader implication takes time to land but is worth sitting with. Gaia's next major data release is expected in twenty-twenty-six.
Closer to home, a new sunspot region called AR4472 fired an M-class solar flare on June twentieth. M-class flares sit in the middle tier of solar activity.
NASA has selected a California firm over SpaceX to build and operate the Aeolus Mars orbiter, targeting a twenty-twenty-eight launch. The mission is designed to deliver daily global environmental measurements of Mars, a cadence that doesn't currently exist.
A paper published December first laid out a formal circular economy framework for spacecraft design. Repair, reuse, recycling as design principles rather than afterthoughts.
SpaceX's push toward orbital AI data centers is running into a basic physics constraint. Removing ten megawatts of waste heat in the vacuum of space requires radiator surface area comparable to two football fields per satellite.
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