- Lagrangian Points
- Rings and climate
- Green valley galaxies
- Switching hemispheres
- Relativity: The Special and General Theory
- The Milky Way at night
- Magnitudes of heavenly arcs
- Pictures galaxies more far away 10 billion light year contrary direction of HUDF?
- Could the universe be collapsing?
- Energy from a Black Hole
- Why does the Milky Way appear curved?
- When stabilized the amount of matter and energy in the universe?
- Could an Earthlike planet reasonably have two Luna-sized Moons?
- Conjunctions and eclipses
- Mars mass
- Great Conjunction
- Why doesn't Mars have an electromagnetic field?
- Jupiter and Venus Effect on Earth's Climate
- Question about dark matter...
- Question about gravity at the rotational poles...
- What is the Higgs Boson?
- Could life on Earth survive without the Moon?
- Precession of the Moon
- Interstellar refraction
- 2 differences in Earths habitability
- Abraham-Minkowski Dilemma
- Gravity and atmosphere
- question about gravitational lensing
- question about starlight hitting the Earth's atmosphere
- Earth ejected from solar system
- Delta V to Solar polar orbit?
- Void temperature
- Tidal implications of eccentric planetary orbit
- Mars magnetic field and atmosphere
- Origin of Earth's N atmosphere, whilst Mars & Venus CO2
- Colliding universes destroyed?... or nothing happens?
- Monochrome
- How do I spot the young moon, August 18th?
- Photons passing through a stormy sea...
- When MW+M31 have antennae
- Does Curiosity have audio?
- Number of moons of a habitable planet
- "But they were only satellites"
- Telescopes
- Would eruption of dwarf nova in M5 cause M5 to brighten enough to be noticeable?
- Elementary Question, Black Holes
- What constellation was 500 AD breakup of comet Encke fragment seen in?
- How far from Jupiter's or Earth's natural radio emissions be detected?
- Is there any relationship between paramagnetism and gravity?
- Question about the Earth's magnetic field and electric field
- The Earth is a dipole magnet?
- How do we explain relativistic jets given what we know about gravity?
- A question about the book: Life As We Knew It by Susan Beth Pfeffer
- novice questions about the Earth's electric field...
- Which is the difference between matter and energy?
- What phenomenon promote/impulse the isotropic expansion of the Universe?
- Quantum Graphity: bad joke?
- expansion of the universe
- What is the non-rest mass of the photon?
- There could be energy or/and mass (matter) within the Planck lengh/volum?....
- Spectrum of Solar System Barycenter
- Einstein speak
- Why we need diferent models to explain the underlying laws of Universe?
- Current theories on nature of dark matter?
- Gravitational Potential of a Ring Mass in the Plane of the Ring
- First Observational Evidence of Gravity Waves?
- Why don't disk galactic orbital velocities increase with distance?
- What effects did Pistol Star explosions have on Earth?
- Dark Matter Interactions?
- I made up an exoplanet
- Is it true mars has plate tectonics?
- Translating right ascension/declination into a non-Sol-centered XYZ coordinate system
- Intracluster Medium/Intergalactic Medium?
- Working on a world
- Fluctuation in the precession of the perihelon of Mercury
- Has the Alpha Centauri system been 'checked' for planets?
- 3 photons
- Bending of a relativistic electron near a charged black hole.
- Dark Matter
- Planetary habitability
- What happens if we discover Alpha Centauri simply does *not* have planets?
- Interstellar Probe Comms Link Design?
- Earth causing lunar 'tides'
- Heat Death of the Universe Timeline
- Dark matter vs frame dragging, has anyone done the math?
- The name of an expression G/c^2
- Figuring the expected largest CMB fluctuations
- Does QED explain superconductivity?
- The Logic of Obtaining Relationships
- Galactic center size BH what % could be DM
- Gamma Ray Bursts in Aquila
- Maximum Radius for a Terrestrial Planet
- need help to solve 2 questions
- A question for German speakers, who are also good at internet searching, about Eros
- Question about meteorites
- Why do people say the moon rotates on it's own axis
- Kerr black hole at planck scales
- random thought: intelligent life on a tidally locked moon
- space/time is curved by mass can it also be stretched ?
- The expansion and the acceleration....
- Ergosphere. Question about speed and relativity.
- Coreless planet
- gravity & density relationship ?
- Sky&Telescope, June 1988 issue - any have a copy?
- Rock drained of troilite
- Could Ceres have liquid water?
- Mapping the surface of an gas giant
- Does equation of state = -1 imply deceleration parameter = -1 too?
- Small planet with thick atmosphere, Big planet with thin atmosphere?
- Multiple Star Systems
- Efficient transfer between planets
- Ways of converting the energy of stars into interstellar flight?
- what are all the assumptions of bigbang theory? and observations that doesn't accord
- If the earth stopped spinning would we feel noticably lighter?
- Is teleportation faster than light?
- How far can light travel?
- Maxwell Boltzmann Distrabution for atmospheric gases.
- How can we estimate the depth of a crater on the moon using the shadows?
- High Moscow Cosmic Ray Monitor reading
- Light pollution with a distant horizon
- Polar rings
- The Future Fate of Mars
- Slow Space Travel
- The lightning of Jupiter
- Fomalhaut
- Does redshift increase as vector angle decreases?
- Curiosity Rover's Laser
- Next Transit From Mars?
- Dark matter/energy?
- Earth with a 12 hour day
- Homework?
- Immovable Object/Unstoppable Object
- Is it possible that Dark Matter/Energy is...
- Stellar Rapid Orbit...
- Einstein field equation? (EFE)
- A curious reader would like to know (GR)
- Earth with a 0.5 bar atmosphere
- Planet with no tides...
- Universe : Death by Black Holes?
- Million years footprint
- Damp-like Treadmark On Mars?
- Observing the clock.
- Longitudinal Clock?
- What happened to Solar Maximum?
- Size of observable universe compared to the total
- a question about gravity
- New FTL Loophole
- Discredited Luminiferous aether and well established Dark Matter
- structure of universe
- The GRB 090429B gamma ray burst and the expansion of the universe
- How far is GRB 090429B now?
- Which way is North on Venus?
- How big does a star appear?
- Thomson vs Compton scattering
- Dark matter and aether objections
- Self-repacking parachutes for SSTO's?
- Chinese novae
- Could TTV be adapted/converted for use as "RVTV"?
- Maths question: Curved space description
- Hip 11952
- Exoplanet question
- Minimum distance to Sun that planets can be seen?
- Medieval knowledge of constellations
- Three Seas, One Solar System
- Realistic Sci-Fi Space Combat Question - Fire on a Space Craft Exposed to Vacuum
- Tidally locked waterworld
- Where does a meteor's light come from?
- Questions on hot Jupiters
- Alpha Centauri Orbits
- Point source brighter than full moon
- Nukes in space and EMP
- Using nukes for terraforming?
- How is the baryon/photon ratio determined from WMAP data?
- Inside Saturn's ring
- smallest ST constituents and inflation
- Stuck on an astronomy question if anyone can help...
- Mass of Earth
- Ganymede: The Jovian moon
- What happens to matter in the singularity of a black hole?
- Doppler cooling in CMBR
- Interaction with masses inside an event horizon
- Age of galaxies
- Fate of Earth
- finding acceleration through differentiation using constant of motion
- Can we be heard?
- Proxima and Alpha Centauri
- Could be Our Universe an Open System?
- Time for the Earth to freeze over
- Plusar system PSR J1311-3430, and 390 rotations per second?
- Is Gravity generated by an interchance of gravitons between atoms ?
- Solar induced blackout during night?
- graviton
- Are elementary particles perfect spheres?
- Really dont understand Thermal Fluctuations & entropy
- Lunar tungsten hexaflouride atmosphere
- Are all elliptical galaxies elliptical?
- Living planet around red dwarf
- deflection of light by gravity
- Motion of the Becklin-Neugebauer Object & Orion SrcI
- van Neumann probed galaxy
- Science or fiction?
- 2 Paradoxes with Black Holes?
- double slit experiment
- How was this Curiosity photo taken?
- Mars' atmosphere vs. light bulb
- Super Earths and their characteristics
- Radial coordinate in Schwarzschild metric
- Earth sized planet with rings
- Doesnt the Double Slit apparatus itself collapse the wave before it leaves the slits?
- Getting on my NERVA
- Why no atmospheric neon?
- Understanding quantum entanglement and non-locality.
- Comparing maximum available stellar light within ranges of redshift
- Time dilation near mass
- galaxy velocity curve
- Best green laser pointes for astronomy?
- Earths eccentricity
- Cosmic ray causes computer error?
- Kaluza-Klein forsee the existence of new dimensions for different spatial scales
- Can a manifold be finite and boundaryless at the same time?
- Eclipse
- Dark Energy and the Big Rip
- What if space-time was wrong?
- Atom bomb semantics question
- WANTED: Some simple formulas for the physical properties of Planetary Mass Objects
- How long does a particle's position remain defined after it is observed?
- A Global Warming Probability Question
- Question about Particle Physics/ Quantum Theory origins...
- Question about gravity...
- How to create a map of the sky ?
- Deathwind
- question about perihelion
- Our ability to observe
- 1 million tons to orbit
- Stretching of light near a black hole
- what is the cause of the OIII wedge in M27, the dumbell nebula?
- Which NGC spiral has the highest redshift?
- Could we detect the Solar System?
- Witnessed Black hole formation
- Question about Light Bending in High Gravitational Fields
- What is the history of the name: "Milky Way Galaxy"
- Can diffraction be easily destroyed and restored?
- A View to a Galaxy
- How to apply PPN formalism
- Do spiral galaxies have absolute magnitude?
- To what degree does lunar gravitational pull affect gravitational redshift on earth?
- Calculating G using gravitational redshift
- What was I looking at in the sky
- Gravity Focus Telescope
- Radius of planets