#proximab — Public Fediverse posts

J+0133 | 13 mai 2026
3DH - Entrée personnelle

La jungle était notre thébaïde.
Un monde sans mercantilisme, sans normes imposées.
Juste les arbres, les racines, le silence.

On l'a quittée pour conquérir, puis on a fui ce qu'on avait conquis.

Elle nous manque.

#proximaB #journaldebord

J+0126 | 6 mai 2026
3DH - Entrée personnelle

Des fous gouvernent sans le savoir.
Des pions aux tours, c'est diplomate.
Le roi est seul.

On a regardé s'effondrer leurs systèmes pendant des années.
Personne n'a rien appris.

Échec et mat.

Échecs - La Fin des Temps
#proximaB #journaldebord

J+0123 | 3 mai 2026
3DH - Entrée personnelle

Uranus. Disque vert-bleu pâle, aplati aux pôles.
On la dépasse en moins de deux heures.

0,35c - γ = 1,40.
Pour chaque jour vécu ici, 1,4 jour passe sur Terre.

Nos 5 milliards de passagers dorment, ils ne verront pas ça...

#proximaB #journaldebord

Avant de quitter la Terre, j'ai regardé en bas.

Des millions expulsés de leurs terres.
Par la chaleur. Par les machines. Par des États.
Ils ont choisi leurs intérêts plutôt que leurs peuples.

Ils ne leur restent plus qu'à prier.

3DH
Prier - La Fin des Temps

#proximaB #journaldebord

J+0113 │ 23 avril 2026
3DH — Entrée personnel
Notre vitesse actuelle dans le vaisseau Panzé-Space est d'environ 0,22c, soit environ 237 240 000 km/h. Un Paris New-York, 0,089s. Un tour de la Terre, 0,61s. Paris Lune, 5,8s. Paris Soleil, environ 38 minutes.
#proximaB #journaldebord

J+0106 │ 16 avril 2026
3DH — Entrée personnel
Ca m'arrive souvent de penser aux humains. On en a accueilli 1 milliard dans le vaisseau, je me demande parfois si ça ne vaut pas mieux de les balancer dans le vide intersidéral.
#proximaB #journaldebord

🪐🔭 Proxima b is the closest Earth-like #planet to our #solarsystem and sits in the habitable zone where liquid water could potentially exist.

Future missions like Breakthrough Starshot aim to send tiny probes to study this neighboring #exoplanet in the coming decades.

👉 https://www.skyatnightmagazine.com/news/proxima-b-an-earth-like-planet-found-round-closest-star

#space #astronomy #science #exoplanets #proximab #nasa #research #physics #nature #universe #learning #astrophysics

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

Continue/Read Original Article Here: This Starship Could Take Humanity to a New Home

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

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

Continue/Read Original Article Here: This Starship Could Take Humanity to a New Home

Original article: View source

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

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

Continue/Read Original Article Here: This Starship Could Take Humanity to a New Home

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

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

Continue/Read Original Article Here: This Starship Could Take Humanity to a New Home

Original article: View source

#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

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/

For an easier way to potentially get ~6 km resolution images of #Proximab than lightsails pushed by non-existent lasers that would use most of the United States power grid's load:

Launch a spacecraft in the opposite direction.

https://twitter.com/michael_w_busch/status/1545278744897650689

Stellar and substellar companions from Gaia EDR3.

According to this new paper, #Gaia #astrometry sensitivity would be just enough to independently verify the existence of Proxima c.

Although the existence is in serious doubt, Gaia could help resolve the situation by providing a clear detection or by ruling out the existence of the planet.

#astronomy #exoplanets #Proximab

Paper by Kervella et al (2022): https://arxiv.org/abs/2109.10912

The nearest known #exoplanet to Earth, the planet orbiting Proxima Centauri, experiences some pretty nasty space weather from its parent #star.

Proxima b receives about 1000 times more high-energy radiation than the Earth does.

This would make it extremely difficult for the planet to host an atmosphere, let alone surface liquid water.

#Proximab #astronomy #astrobiology
https://arxiv.org/abs/2211.15697

"First, we need rock, and #Proximab indeed is a #planet that certainly has a rocky surface."

"Second, water has to be present. We have no evidence of this, but water can be found everywhere in space and there are no reasons why it would not exist on the surface of Proxima b."

"Third, there needs to be carbon dioxide, but that is simply a common primitive atmospheric molecule on all the Earth-sized planets in the solar system."

All these remain true, after six years of intensive #science.

What I said six years ago about the new #planet #Proximab I could say again today.

"Everything we know about Proxima b suggests that, although it is different, it shares similar features with the Earth such that it could be a life-friendly planet."

There are many questions and unknowns, the planet could experience deadly stellar eruptions, but it is still the nearest candidate #habitable world.

And this is why we are still studying it today.

#astronomy #exoplanets https://phys.org/news/2016-09-proxima-life-friendly-planet-co-discoverers.amp

Time for a proper introduction.

I am a professional astronomer at Helsinki University, Finland, studying exoplanets and active stellar surfaces.

I have discovered dozens of planets around nearby stars, most notably #Proximab around the nearest star to the Sun.

I do statistical modelling and data analysis, numerical simulations, and lots of other things.

Trying to understand the universe the best I can.

#introduction #astronomy #astrophysics #exoplanets