Valerians, Your Heavy Gravity Planet Has Been Found

Researchers from University of Hertfordshire and the University of Goettingen have found a hitherto unknown heavy gravity world that is in the habitable zone to support life - and Dutch colonists from Earth.

( Super-Earth HD40307g alongside its host star [Credit: J. Pinfield])

Star HD40307 has been checked out before, and in the first investigation, three massive planets were found - but all of them were fiery worlds orbiting too close to their sun to have water or life on their surfaces.

Now, astronomers Mikko Tuomi of the University of Hertfordshire and Guillem Anglada-Escude of the University of Goettingen have found three more planets in the system, one in the habitable zone of the star, where liquid water could exist.

"The longer orbit of the new planet means that its climate and atmosphere may be just right to support life," Hugh Jones, also a researcher at Hertfordshire, said. "Just as Goldilocks liked her porridge to be neither too hot nor too cold but just right, this planet or indeed any moons that it has lie in an orbit comparable to Earth, increasing the probability of it being habitable."

The boffins calculate that HD40307g has about seven times the mass of Earth, and lies at such a distance from HD40307 that it isn't "tidally locked" with one face constantly pointed at its sun - thus it has days and nights, and is potentially much more hospitable to life. The scientists don't know how large it is, or even for sure that it is a rocky world like ours, which makes it hard to say just how strong the gravity on the surface might be. However it seems safe to say that if the planet is indeed rocky it probably has a much stronger surface gravity than Earth does - probably several Gs or more, depending how much larger it is, which would make it hard for un-adapted humans to live there (having got there somehow). Any resident aliens or future human colonists would probably be extremely physically powerful compared to Earth residents, along the lines of the heavy-world people or lifeforms found in science fiction*.

EE 'Doc' Smith was one of many science fiction authors who were fascinated with the idea of habitable planets with heavy gravity; he wrote about dutch colonists from a heavy gravity planet called Valeria in his 1937 classic Galactic Patrol:

Sergeant Peter van Buskirk led the storming party of Valerians-men of human ancestry, but of extraordinary size, strength, and agility because of the enormous gravitation of the planet Valeria-in wiping out those of the pirate crew not killed in the battle between the two vessels.”

Another example is Jinx, one of Larry Niven's creations from his Known Space stories. Jinx is a satellite of a gas giant named Binary in the Sirius A system. Jinx has a surface gravity of about 1.78 times Earth normal.

Via the Register; thanks to an anonymous tipster who clued me into this story.

Scroll down for more stories in the same category. (Story submitted 11/9/2012)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 1 )

Related News Stories - (" Space Tech ")

Senate Passes Space Mining Legislation
'The law of filing on newly discovered asteroids was definite...' - Nat Schachner, 1941.

The 'Marching Mountains' Of Pluto
Calling Captain Future! Your time has come.

3D Printed Pluto And Charon, For Imperial Collectors
'It was the kind of globe made for wealthy collectors or planetary governors of the Empire.' - Frank Herbert, 1965.

A Solar System Swept Clean - For A Dyson Swarm
'They cleaned it out...' - Larry Niven, 1970



Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.






Current News

ANNABELL AI Can Learn English From Scratch
'...Could understand not only classic programming but also Loglan and English..."

Tesla Suit Gives Haptic Hugs
'Then a pressure on the lips...'

Surgically Implantable Artificial Kidney Starts Testing
'George Walt... proved the workability of wholly mechanical organs...'

Self-Filling Water Bottle Is Beetle-Based
'That moisture trickles down...'

Senate Passes Space Mining Legislation
'The law of filing on newly discovered asteroids was definite...'

Microsoft's Surface Book Is Part Clipboard
'Floyd sometimes wondered if the Newspad, and the fantastic technology behind it, was the last word in man's quest for perfect communications...'

Police Use Predictive Maps ala 'Minority Report' Routinely
'...the data-receptors, and the computing mechanisms that studied and restructured the incoming material.'

Tesla Autopilot Road Trip 2995 Miles, 57 Hours
'The beautiful old car cruised ... under the guidance of its automatic controls...'

The 'Marching Mountains' Of Pluto
Calling Captain Future!

Graphene Thermopile May Grant Predator Heat Vision To Humans
'What the hell are you?'

BitDrones Flying Microbots Model Programmable Matter
'... as though a child should build from nursery blocks a fantastic shape which abruptly is filled with throbbing life.'

Starship Turbolift Elevators Coming From ThyssenKrupp AG
Your sideways elevator is getting closer to your floor.

LineFORM MIT's Shape-Changing Interface
'For an interval, the device struggled with itself...'

LM3D Swim First 3D-Printed Production Car
'Almost as good as the original it was printed from…'

Protopiper Lets You Sketch Full-Size Objects In Real Space
'Plastic comes out of the end of the drawing arm and hardens...'

AI Trainers: Assisting Artificial Intelligences
'[Ava] wouldn't stop until Antar had told her everything he knew...'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise | - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.