Join other sci-fi fans in discussing science fiction and fantasy topics. SciFi and fantasy movies, TV, books, comics, art, games and culture! Are you a Star Wars or Lord of the Rings fan.
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Recent Hard SciFi
- Mind Guild
- · Replies 4 ·
1,000,000,000 light years from home
- Hornbein
- · Replies 2 ·
I wrote a book!
- DaveC426913
- · Replies 14 ·
Reality Check: Rogue Planet Flyby Scenarios and Survival Feasibility
- cassius
- · Replies 24 ·
Can Mathematical Models Explain Scenes from The Day the Earth Stood Still?
- difalcojr
- · Replies 120 ·
Could “Supralight” effectively allow perfect cloaking?
- BadScientist
- · Replies 2 ·
Star Wars Galaxy map just dropped
- DaveC426913
- · Replies 5 ·
Pluribus
- BWV
- · Replies 1 ·
Big Ben In N Dimensions
- Hornbein
- · Replies 24 ·
I am writing a SciFi story but I don't like Rayguns
- SleipnirTheHorse
- · Replies 58 ·
Trying to find a story (YASID)
- DEvens
- · Replies 9 ·
There Be Monsters by Dave Collins
- DaveC426913
- · Replies 24 ·
Time Travel: Setup & Challenges for Safe & Accurate Travel
- ForTheLoveOfPhysics
- · Replies 49 ·
KSR's Red Mars - Molecular sieve breathing mask
- DaveC426913
- · Replies 4 ·
Alien life, probabilities, and interstellar propagation of human life
- mr3000
- · Replies 237 ·
Physics of ISV (Interstellar Vehicle) in Avatar Series
- Trollfaz
- · Replies 4 ·
How would a Machine at the Heart of the World tidally lock the Earth?
- Cerenkov
- · Replies 10 ·
A movie about AI and physics!?
- Vasil
- · Replies 9 ·
Asimov's Foundation: Am I the only one who likes the show more?
- GTOM
- · Replies 56 ·
TV Series Based On Schrödinger Superposition
- Hornbein
- · Replies 5 ·
Best Plot I've Ever Read
- Hornbein
- · Replies 12 ·
On writing with AI: The Devil is in my foyer, do I invite him in?
- DaveC426913
- · Replies 14 ·
Mickey 17
- DaveC426913
- · Replies 7 ·
Dune: Prophecy, what to read for additional story context?
- bryantcl
- · Replies 21 ·
Stories about not so soft space fighters
- GTOM
- · Replies 17 ·
Avatar (film): antigravity and unobtanium
- DaveC426913
- · Replies 24 ·
A classic AI movie - Colossus: The Forbin Project
- Ivan Seeking
- · Replies 21 ·
How many mSv of radiation would a bolt of ionized plasma deliver?
- Razorback Gorilla
- · Replies 6 ·
Four Dimensional Bowling Alley & Billiard Hall
- Hornbein
- · Replies 3 ·
This was a mystery percolating for almost fifty years
- DaveC426913
- · Replies 12 ·
Modern analysis reveals overlooked plot subtext in LOTR
- BWV
- · Replies 2 ·
A positive term needed for ongoing (alien) sleeplessness
- Dr Wu
- · Replies 19 ·
Space crafts and anti gravity
- pete94857
- · Replies 5 ·
Extinction event in my story, is it believable?
- DeliriousEncore
- · Replies 30 ·
The Science of Interstellar: Tidal Wave
- DaveC426913
- · Replies 5 ·
What sci-fi movie and book technologies will never be a reality?
- Maximum7
- · Replies 27 ·
Looking for feedback on how the scientopics are presented in my story
- EmileJ
- · Replies 2 ·
Tom Swift - young scientist, engineer, inventor
- difalcojr
- · Replies 6 ·
Dark star encounter from Yefremov's "Andromeda"
- RodionGork
- · Replies 3 ·
Was the physics in old TV shows always accurate or just for drama?
- diogenesNY
- · Replies 17 ·
What would a gluon computer be like?
- Maximum7
- · Replies 7 ·
The Cloaking Device from Star Trek
- CuriousGuy2024
- · Replies 6 ·
Magnetic force applied over long distances in fantasy book
- QuantifiablyInvested
- · Replies 6 ·
Screenplay format? Any use except as a submission as ... a screenplay?
- DaveC426913
- · Replies 6 ·
Truly Imaginative Yet Solid Science Fiction
- Hornbein
- · Replies 5 ·
How fast did Dr Ryland Grace travel in the Hail Mary Project?
- Twinduck
- · Replies 1 ·
Making use of kilo-tonnes of generic tholins??
- Nik_2213
- · Replies 10 ·
Theoretically, could shrinking down to Planck scale enable time travel?
- Maximum7
- · Replies 3 ·
Could there ever be a chromo-electric field weapon?
- Maximum7
- · Replies 18 ·
What Is the Title of This Sci-Fi Book with a Hero on a Multispecies Spaceship?
- Hornbein
- · Replies 4 ·
If the Moon's Perigee was closer, could that result in earthquakes?
- DeliriousEncore
- · Replies 3 ·
Ann Leckie's Ancillary Justice
- DaveC426913
- · Replies 2 ·
Solar eclipse portal movie
- Ephant
- · Replies 11 ·
Is My Sci-Fi Story's Scientific Premise Believable?
- unsaint32
- · Replies 17 ·
Toward the Stars: Technological, Ethical, and Sociopolitical Dimension
- sbrothy
- · Replies 5 ·
What does magnetically sealed possibly mean?
- Maximum7
- · Replies 9 ·
Termination of a nuclear reaction
- Phil App
- · Replies 11 ·
Choosing a Session: A Physicist from the Future Drinks Rum During Q&A
- James William Hall
- · Replies 18 ·
What are some lesser-known sci-fi comics worth checking out?
- sbrothy
- · Replies 7 ·
Shielding against the Sun with a large sheet of aluminum foil in Earth orbit?
- Tiger Blood
- · Replies 43 ·
Are There Sci-Fi Movies Similar to Oppenheimer?
- Ephant
- · Replies 15 ·
Realistic fast Interstellar Propulsion Methods
- Erik1801
- · Replies 61 ·
Material to resist punch-through by metal rods
- DynV
- · Replies 12 ·
Believable Earth-based SF novels
- Dr Wu
- · Replies 6 ·
3 Body Problem (upcoming TV series)
- DennisN
- · Replies 6 ·
Are Stephen Coonts' Saucer Series Books Worth Reading?
- gmax137
- · Replies 5 ·
Question about the ending to 2001: A Space Odyssey
- donglepuss
- · Replies 8 ·
ChatGPT and the movie "I, robot"
- Maarten Havinga
- · Replies 55 ·
How Would a Red Dwarf Companion Affect Our Sunset Views?
- Algr
- · Replies 41 ·
Congressional hearing on UAPs/UFOs
- chasrob
- · Replies 3 ·
Can Muons Propel Objects in Science Fiction?
- Dreamcat
- · Replies 4 ·
Meet the Spherics Family: A Tale of Big Hair & Hard Heads
- difalcojr
- · Replies 1 ·
The Perils of Quantum Cryptography?
- Dr Wu
- · Replies 2 ·
Why is it thought that black holes could make us travel to the past?
- Etherealist
- · Replies 15 ·
Advancing Star Wars Fighter Combat?
- Flyboy
- · Replies 10 ·
The Man from Earth | A Sci-Fi Masterpiece by Jerome Bixby
- Ivan Seeking
- · Replies 3 ·
Best position for a cockpit? (in a spaceship doing high G maneuvers)
- Spacetraveler73
- · Replies 21 ·
Do You Have a Favorite Alien Species in Fiction?
- sbrothy
- · Replies 26 ·
Is there any way to send instantaneous signals w/o breaking causality?
- Maximum7
- · Replies 4 ·
SciFi Idea: What do you think about very long lifespans?
- Jarvis323
- · Replies 51 ·
How much energy did the Thanos snap release, approximately?
- Maximum7
- · Replies 12 ·
Opening a portal to the center of the Sun
- some bloke
- · Replies 14 ·
Will Quantum Supremacy Make the World Safer or More Vulnerable?
- Dr Wu
- · Replies 4 ·
Ant-Man and the Wasp: Quantumania
- huber david briones
- · Replies 5 ·
Nuclear fusion energy calculations
- Deleted member 690984
- · Replies 16 ·
What Are the Top Sci-Fi Books of the 21st Century?
- BWV
- · Replies 49 ·
Should I Read The Books Before Watching The Expanse?
- Greg Bernhardt
- · Replies 26 ·
Question About "Engineered Criticality Devices" In A SciFi Scenario
- BigDon
- · Replies 3 ·
Ground currents to detect a civilization?
- Stephen Tashi
- · Replies 4 ·
Relativity Calculation: Two bodies traveling at relativistic speeds
- keeper blue
- · Replies 18 ·
Modern Sci-Fi Books and Their Apparent Obsession with Brain Implants
- Strato Incendus
- · Replies 44 ·
Is Tau Zero the Ultimate Space Travel Concept?
- anorlunda
- · Replies 10 ·
A Radiation Shock Too Powerful to Examine (EMP)
- Quotidian
- · Replies 13 ·
Trying to find old story: radio waves = angels carrying messages
- Steve4Physics
- · Replies 5 ·
Overload of positrons joke from Eureka
- adimauro
- · Replies 4 ·
Green liquid that glows when electrocuted in 39 Clues
- Kalaton
- · Replies 15 ·
Sci-fi engine thrust calculations
- Deleted member 690984
- · Replies 37 ·
Some SF Thoughts on Videotelephony?
- Dr Wu
- · Replies 2 ·
What kind of fusion do you think Star Wars has?
- Maximum7
- · Replies 57 ·