Dalla Terra a Proxima b con Chrysalis.
Il progetto Chrysalis non è solo la progettazione di un'astronave, ma la definizione di un'intera civiltà in transito. La missione è concepita per trasportare una comunità umana attraverso lo spazio interstellare per circa 400 anni, richiedendo un approccio che va oltre l'ingegneria, toccando la sociologia, la psicologia e l'adattamento...

https://scienzamagia.eu/scienza-e-tecnologia/dalla-terra-a-proxima-b-con-chrysalis/

#astronavespaziale #Chrysalis #LaCrisalide #Proximab #ProximaCentaurib #SPAZIOINTERSTELLARE

This Starship Could Take Humanity to a New Home – Popular Mechanics

If this space habitat ever becomes a reality, it could take us all the way to exoplanet Proxima b.

By Elizabeth Rayne, Published: Aug 06, 2025 2:30 PM EDT

Here’s what you’ll learn when you read this story:

• Project Hyperion competition winners dreamed up Chrysalis, a starship and space habitat that could make it to the planet Proxima b in just 400 years (which is ridiculously fast).
• The spacecraft is designed to run on a fusion engine, create artificial gravity, and carry about a thousand people while flying at around a tenth of the speed of light.
• Though Chrysalis remains a concept (for now), it could end up launching something unprecedented in the future.

Headed towards the Proxima Centauri system, the starship Chrysalis traverses a seemingly endless expanse of space as it soars toward its final destination—the potentially habitable planet Proxima b. There, over a thousand passengers who have been living in the airborne habitat (the descendants of a crew that launched from Earth four centuries ago) will build a new frontier for humanity.

Chrysalis sounds as if it flew straight out of a scene in Isaac Asimov’s Foundation. But despite its sci-fi features, this is an actual spacecraft concept that recently won the Project Hyperion design competition hosted by the Initiative for Interstellar Studies (i4is). The craft is the brainchild of an interdisciplinary team of Italian researchers—Giacomo Infelise, Veronica Magli, Guido Sbrogio, Nevenka Martinello, and Federica Chiara Serpe—who were challenged to come up with a floating habitat that would eventually touch down on the closest exoplanet to Earth, Proxima b.

“The presentation is rich and visually engaging, drawing comparisons to iconic works like Rama, and showcasing a clear passion for both design and storytelling,” the competition jury said of Chrysalis in a recent press release. “Its overall spacecraft design seems to take inspiration from the gigantic world ship concepts of the 1980s.”

Each team that embarked on this conceptual journey needed at least one architectural designer, one engineer, and one social scientist. Their mission was to figure out how to accommodate a thousand (give or take 500) people over the centuries it would take for the spacecraft to reach its destination. Like the fictional starships it was inspired by, Chrysalis would to produce artificial gravity through a rotation system, in order to try and counteract the detrimental effects of microgravity on the human body. Designing support systems for food, water, waste, and an atmosphere—as well as coming up with ways to provide livable conditions and meet basic needs—were also mandatory parts of the contest. Additionally, there would need to be methods of transferring knowledge from generation to generations in order to both keep culture alive and retain (and advance) technology.

Read more: This Starship Could Take Humanity to a New Home – Popular Mechanics

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#2025 #AdvancedTechnology #Chrysalis #Humanity #PopularMechanics #ProjectHyperion #ProximaB #Science #Starship #Technology

Interstellar communications are achievable with gram-scale #spacecraft using swarm techniques.

The essence is to launch a long string of 100s of gram-scale #interstellar probes at 0.2c in a firing campaign up to a year long, maintain continuous contact with them, and gradually, during the 20-year cruise, dynamically coalesce the long string into a lens-shaped mesh network ∼100,000 km across centered on the target planet Proxima b at the time of fly-by.

#Proximab
https://astrobiology.com/2023/12/swarming-proxima-centauri-optical-communication-over-interstellar-distances.html

Proxima b herbergt mogelijk explosieve cryovulkanen en bewoonbare ondergrondse oceaan

Astronomen van de NASA en de Universiteit van Washington hebben der totale interne verwarmingssnelheden en diepten van mogelijke ondergrondse oceanen geschat voor 17 exoplaneten die mogelijk koude oceaanplaneten zijn

https://www.kuuke.nl/proxima-b-herbergt-mogelijk-explosieve-cryovulkanen-en-bewoonbare-ondergrondse-oceaan/

#AardsePlaneten #cryovulkanisme #exoplaneten #OndergrondseOceaan #ProximaB

Seven years ago, my group launched the Pale Red Dot observing campaign whose purpose was very simple: to confirm the existence of #Proximab, the nearest candidate habitable #exoplanet.

Evidence for its existence had been found three years earlier by myself, but such extraordinary discoveriy require stronger support than most scientific results.

And it gained support, as of today, from as many as three different telescopes and instruments.

#astronomy #ProximaCentauri
https://www.eso.org/public/announcements/ann16002/