- Slowing Earth?
- Mass and Supraluminal
- What would an Earthlike planet with the land/ocean ratio opposite of Earth`s be like?
- Meteor ?
- Photographing Cepheids?
- Math question
- What would Earth look like if the icecaps melted completely?
- Why were pulsars such surprise?
- Velocity curve of galaxy rotation
- What's the surface gravity of Gliese 581 d?
- Peculiar motion and acceleration
- Light Speed "illusion"
- Lagrange Points question
- Distances at c
- Putting probes in Venus' Lagrangian points
- Why was Olber wrong?
- How to calculate the volume of a sphere?
- Formation of black holes, impossible?
- Dark Stars
- Scale height
- Moon landing myths
- Hypothetical observation of the speed of light
- relativity questions and examples
- Does the edge of our visible universe radiate?
- Magnetic Monopole a certainty?
- Making a solar system diagram?
- Mars & Venus with water.
- Mechanical reasons for TR clock slowing.
- Radiation, The Clear Sky Kind, Questions
- Did WMAP get it right?
- regarding "New "temperate" exoplanet discovered"
- Followup on Relativity Questions from UT Story
- Is there any Evidence for string theory?
- Attaching a digital camera to binoculars
- Origin of radiation
- quantum gravity
- How to convert acceleration/velocity to mass?
- Discerning relationships between three forces
- Negative Mass and the Schwarzschild radius
- Question about Brian Greene's books
- The concept and effect of gravitons
- dark matter
- dark matter and black holes
- Moonrise
- Questions on new Michelson Morley experiment
- what is the max velocity that a star can accelerate another object to?
- length contraction on a massive scale.
- Questions about Ocean Planets.
- have some questions [proof the earth actually spins]
- How do they know what color?
- Surface topography of Titan?
- Four body Trojan stability
- Bigbang sequence
- Hydrogen atoms in space
- How far from melting are the rocks of Venus & Mercury?
- The last days of Regor
- Could Gliese 710 be Nemesis?
- what is the redshift of an object receding at speeds approaching the speed of light?
- question [evidence that we orbit the sun?]
- FTL and causality
- Is this a satellite ?!
- Penny for your thoughts. [universe in trough of grav wave?]
- Mathematic derivation of the speed of light?
- M-forming
- mass and electromagnatism in a black hole
- The accuracy of observation over vast distances.
- I Wanna move Mars and get away with it
- Recent Solar System Observations
- Horizon Question
- Negative Energy and Gravitational Time Dilation
- Propulsion method for sublight spacecraft...
- The CfA2 Great Wall
- Orbit about a black hole
- Could dark matter be made up of slow neutrios?
- I've been thinking about The Pluto Files on PBS and Pluto's demotion for a month
- How much negative mass would it take to rip apart a planet?
- Question about entropy at the beginning of universe
- Does big rip have an acceleration gradient?
- The Fate of Black Holes Over Time
- Watching the Moon Spin
- Asteroid Impacts and Earths Rotation
- How far, when and in what section of the oorb debris are we being surrounded
- what would fan out gravitation look like?
- New type of energy for a story?
- Schwarzschild metric not invariant?
- Where is the centre of the Universe?
- Is deeper, closer?
- Why is information on nuclear batteries (and other space batteries) so limited?
- kinematic derivatives: why is acceleration more important than jerk, snap, crackle ?
- black hole freeze frames?
- How is a BB singularity different from a Black Hole vis Gravity and escape velocity?
- The Unobservable Universe
- Question about the Inflaton Field
- Infinite combinations of atoms
- is everything always travelling at c?
- Heating up
- Could there be anything left of the Big Bang Singularity?
- Order --> Disorder ---> Order? (Entropy confusion)
- Our Universe existing in a black hole?
- 2010 ga6
- Water on the moon, what happens?
- Pictures in the moon dust
- The Great Attractor
- Is cosmic drift polar?
- A relatively simple question
- Possible? Liquid Water in a Gas Giant?
- Uncertainty Principle
- the size of the universe does not add up to the time its had to expand?
- zero degrees longitude
- Least metallic nearby galaxies
- The effects of a nuclear explosion between two universes
- Energy Conservation and the Infinite Universe
- Does the equivalence principal apply to redshift?
- Inflatable Spacecraft Structure (Transhab style) questions.
- Does dark energy destroy black holes?
- What is a rindler horizon?
- Fate of Smith´s Cloud?
- Changes within solar system (I urge you to view)
- If earth had a second teeny tiny moon...
- Gravity, acceleration and Black Holes
- A question about tides
- Exploding meteor over southern Wisconsin on 4/14/10 at 10:00 pm cst
- CMBR, comoving coordinates, and the Unruh Effect
- Pi and the shape of the universe
- Mars Magnetic Field?
- Question on redshifts in Cruttenden's Binary Sun model
- Photon-photon collisions - observed, or not?
- expansion
- What Happens To Time?
- Question: -Sungrazing comet observed by COR1-A on March 12,
- Gravitational Energy in general relativity
- angular diameter distance
- Will the moon fly away?
- Is The Many-Worlds Theory Really A Popular Theory?
- Solar System Equilibruim For Life
- Is gravity present at the quantum levels ?
- Could Pluto and Neptune ever collide?
- Exceeding Speed of Light?
- Energy between silver balls?
- where and when does dark matter and dark energy come from
- Infinite Space; Infinite Time
- Relativity Questions - Dimensional issues
- Titan's interior?
- Gravity, acceleration 2 Black Holes
- What would happen if the Earth cracked in Half...?
- Spitzer, Chandra, Hubble.... JWST
- speed of sound
- Past Present and Future: How does one thing lead to another?
- Helium balloons on re-entry to earths atmosphere.
- Big Rope
- simple physics question can acceleration create equality in tidal forces?
- Quasars
- Equatorial Launch vs Conventional (Temperate Zone) Launch.
- Can universal expansion produce hawking radiation?
- Universes Future (Answers Wanted)
- [Physics behind Universe expansion]
- Temperature and axial tilt of the planet
- Quick sat overpass question: What did I see?
- purpose of first postulate
- Galaxies: elliptical reverting to spiral?
- Black Holes, and Hoops
- An Einsteinian Thought Experiment.
- Is the Sun Losing Mass?
- Galactic Horizons.
- Velocity and gravitational fields
- Length contraction, which is it?
- Near-light speed and the Earth's biosphere
- Binary Orbits in Ecliptic Coordinates
- Speed of Light thought experiment
- John Herschel's catalogue of galaxies and nebulae
- do subatomic particles have 'size'?
- Undergraduate astrophysics?
- How does the Belt of Venus work?
- Giant rockets that never came to be.
- The Big Bangs???
- "mechanical" experiments with light
- blue stars
- Life Long, Silly Question
- all the worlds nuke bombs went off at the same point on the surface of earth
- Are tidal forces linear?
- spin off from the "Speed of Light thought experiment" thread
- Nightmares
- medieval supernova
- Libration Points In A Geostationary Orbit
- Approaching the speed of light
- Direction of Tidal Force?
- What if the Earth's rotation speeded up?
- The nature or the essence of time
- is cosmic expansion perfectly linear or approximately linear
- Universe - Why are we in the middle?
- Lateral Tidal Forces at a distance
- Another Gravity Question. Surface Gravity This Time.
- What is energy? and a gravity question related to matter...
- pillars of creation
- A quick cure-all for Dark Energy?
- Interplanetary Space Fight in Binary Systems
- Slingshot Spaceflight
- Will I or other people see aliens in our lifetime?
- Measuring the days of gas giants
- Time on moon relative to earth.
- Seeing back in time
- Maximum Velocity of Gravtional Slingshot?
- Better parallax for UGPS 0722-05
- question about Martian orbits
- Matter-Antimatter
- Light escaping stars' gravity
- Gas Giants?
- Reason for big bang
- Question about rotation & flow of liquid(s) on an astronomical body.
- Stopping Tonados?
- Spontaniuos Symmetry Breaking
- Size Is The Limit Of Movment
- been around the sun 39 times today
- Gravity on a Super Earth
- How quantum gravity works if is asumedd the photon is massless?
- bosenovas
- 99942 Apophis how much damage and how to deal with it
- Bright object in WNW sky?
- Mass Limit of Satellites Name Again?
- Astrodynamics books -- read any?
- The Source of Geothermal Energy
- FTL and Causality, Part Two, The Movie.
- Jupiter Loses a Stripe - And I Thought Military Discipline Was Bad!
- Barring "Internal Force Fields" And Novel Materials...
- Magnetism vs Gravity.
- Random walking photons and blue giants
- Writing a very big number
- How far can we see into space? and can Brown dwarfs be seen or detected?
- RCW120
- Black Hole Sun & Earth's cooling off period?
- A Full Moon At Sea Question.
- Question- Two Atom's in empty space
- what is time?
- Question- ratio of dark matter/baryonic matter
- If space and the universe is expanding, is the matter in it expanding too?
- Acceleration
- Collegiate Education: Majoring in Astronomy
- Lithium planets?
- Forces in nature?
- Are atoms and sub atomic particles, particles or waves... ?
- Unknowably far stars
- [Universe Rotation : Red/Blue Shift]
- NatGeo's Storm Worlds
- In what direction is the center of the universe?
- Viewing different Galaxys ?
- Local Group supernovae
- 3D Map of the Trojans
- What's our Hubble Flow Vector?
- Question about the surface of last scattering
- What would a planetary collision be like?