- Light Horizons, the visible Universe, and the CMB.
- calculate lightspeed with Moon?
- How is that hubble sees so far back?
- Are there more neutron stars or stellar black holes?
- Stellar Mass Calculation - Question
- WISE Photometrics
- Just how hot can a planetary surface get?
- what happens to the unit of colomb if...?
- Tim e and Space
- Invariance - General, Conformal and Reparameterisation
- White holes and the sun
- what would be used to measure "universal time"
- Are pics and captions mixed up, at HiRise?
- whats in the dark?
- New Moon Eclipse?
- Is helium3 a possible fuel for interstellar travel?
- Theoretical technology for scanning wormholes
- Is the Higgs Field the new Ether?
- quick question
- how long till we know the exact age of the universe
- Why is the night sky not white with starlight?
- Angular area of the sky
- Energy seperation during big bang
- Planet hunting with Kepler
- Recommended Book on Space Exploration?
- Flash in the morning sky
- Moons and moonlets
- Confused by T i m e Dilation
- Eternal Inflation or Big Rip?
- How does dark energy relate to the Einstein Field Equations?
- Solar system software with parameter input?
- Could WISE find a Jupiter-size or larger exoplanet around Alpha Centauri?
- Why did the big bang go bang ?
- Physics 101: Calculating t i m e to reach c at constant 1g
- 2010 al30
- > 10% of the Galaxy's magnetic energy is contained in only < 0.05% of its volume
- Terraforming Venus project
- One thing
- Why is (T I M E) set up this way
- the mass of a proton
- A new question ;re deg.
- Quark Stars and how to relate to black holes
- just to say hello [diameter of Mars]
- just to say hello [position of Earth]
- Evaporated Core
- An anti-Higgs particle?
- At what speed is the Universes 'event horizon' approaching our POV
- Migrating planets in our solar system.
- Is mass needed for space tme to exist?
- what is the approximate age of the following?
- Photons and gravitational radiation ?
- Question about Alex Filippenko's Berkeley LiS Astronomy course
- Moon dust
- how does static behave in a vacuum
- Question About Mars
- Could dark matter be...
- Geocentric orbit and a banana peel
- telescopic limitations?
- Stress Energy Tensor
- a laser and a planet
- Which is Stronger
- Meteor fireball sighted while on commercial jet
- Skydiver Felix Baumgartner seeks to break sound barrier
- Fundamental Forces Question
- Jupiter, Which Is It?
- What is a Singularity, What is a Black Hole
- Question for Solar Astronomer
- Are local blazar host galaxies in the green valley too?
- Is it possible for there to be Dark solar systems
- Mainstream Astronomy [Accretion Disks / pressure on matter]
- antimatter matter annihilation (spelling?)
- Can the anomalies constrain the landscape?
- Mass increasing with the speed of light
- Black hole with accretion tail
- Computing relative brightness
- Is the universe circular?
- Could a black hole be created from a laser ?
- Relativity question.
- Planet building
- String Theory primer please ...
- Tau Zero, time dillation, relativity?
- Einstein's Thought Experiment
- SOL question
- The Mass of the Moon
- does spacetime not expand "locally" due to gravity?
- After the Space Shuttle
- Relativity and Magnetism
- Dark Energy and the Big Rip?
- Can Globular Clusters map the Dark matter Halo
- Horizon Question
- What is the formula
- is sentry system the best asteroid risk scale?
- Black holes
- Could Spacetime Curvature be an Illusion due to our vision?
- Question about relativistic speeds, filmmaker's perspective
- Solar pole reversals - Newbie Post
- Earth like planet around Alpha Centauri 3 ?
- Gravatitional Constant (Big "G")
- where does "Dark Energy" come from? (is there a mainstream idea as to it's origin)
- Opportunity for "GOOD astronomy" in fiction
- New confusing Earh moon theory?
- Neutronium
- New Moon Mission Questions...
- Proxima from Alpha
- Most interesting objects for ET to broadcast from
- Van Allen Belt discussion
- black hole creation
- Supersonic Speed in space?
- Vibrating Strings pickup mass from Higgs Field?
- Hawking Radiation.
- Delay or reduce red giant phase?
- Assuming Grand Unified Field Theory is realized,
- Moon as a Launching Pad for Humanity
- Looking for shuttle info.
- If we looked at a black hole, what exactly would we be looking at?
- The postulate that the laws are the same in all inertial frames
- Dark Matter: Clouds of micron-sized black holes?
- The Dynamo Effect
- Musings on the speed of light
- moving magnetic field created by electromagnets
- Visible starbursts
- Does anyone know of a simple source which explains the 6 LCDM parameters?
- Retrograte motion vs prograde motion
- Moon is an artificial Celestial?
- maximum magnitude of supernova Ia slightly modified
- Gravitational information pathways.
- What will be seen outside of the universe
- How much do they make?
- Composition Of Atoms Question.
- Questions about types and quantities of stars
- Plancke and Hubble scale
- Heat Rejection Systems
- Expansion
- higgs, non-higgs mass
- Apollo 11 Fully-Restored Video - Where is it?
- How can a Black Hole form
- why do all the planets and stars look the same through my telescope??
- Higgs field?
- -- T G F --
- Neutron star
- How high would would you have to go to see America East Coast in the sky from UK?
- Titan & Saturn question.
- Canis Majoris Question
- How long before the sun cooks us?
- Chinese New Year: Happy Year of the Tiger!
- How abrupt is the entry into the red giant stage?
- Apophis, question about additional perturbation
- dark matter
- Orbital planes perpendicular to ecliptic possible?
- Changing scenery at the edge of the observable universe.
- Large Universe without inflation?
- Another Black Hole Thread...
- spacetime itslef can move faster than light?
- Planck Length question
- Do you Know what Happened in The Universe Before the Big Bang?
- Tachyons
- how much memory did the apollo spacecrafts have
- Could we return to the moon with existing systems?
- Universal expansion - could someone help me to understand?
- Shape universe portrayed?
- Not a truth, the truth.
- Is this the answer to life the universe and everything?
- the two stars B&B
- Carbon Atmosphere on a Neutron Star?
- Is global warming not happening?
- Two questions regarding Orbital
- Fermi Paradox - isn't it half-baked?
- Martian dust storms
- Which way Milky Way?
- How does the Tiny Cosmic Ray create a "Gravity Well" or warp
- Synchronous orbit vs. non synchronous orbit
- Is the universe the same age everywhere?
- Venus and magnetic field.
- Quick orbital precession question
- scifi relativity help
- paradox.
- Pressure wave question
- What else is can be seen?
- Colorful T i m e
- transverse redshift at relativistic velocities
- [SF/worldbuilding] Large moons?
- Need opinions on Pluto being demoted (not what u think)
- Diagram of all observatories
- Falling car
- Gradient of Earth's gravity well?
- Travel duration to each of the planets
- Exact Size of the Sun?
- Twins Paradox in a Closed Universe?
- Centripetal Force/Air Pressure Question
- Is τ an invariant measure?
- Big bang....big emergence??
- Lunar Regolith and Carbonaceous Chondrite Meteor Question.
- Life of a Photon of light
- Speed of Light and the expanding Universe
- Ontological concepts(?)/ Special relativity.
- Gravity in the early universe
- Exoplanetary Question
- Younger Universe
- Is the Galactic Centre of our Galaxy teaming with intelligent life
- Carbon planets?
- Why acceleration in a gravity field?
- strange shade filmed since ISS
- Will Light go Slower than C when pulled into a Blackhole?
- Apollo 8 Red/Blue moon images
- Stars Composition ?
- How close to the sun. . .
- Where is Betelgeuse's cluster?
- Gravitons
- A recent paper on interpreting accelerated expansion of universe
- Binary Sun Revisited
- Speed in Space
- Absolute Velocity Measurement
- Universal Expansion & Density
- Dead stars
- Higgs Boson/Field and E=mc^2
- QED
- Confused: Heisenberg, Higgs Field, Dark Energy
- Can quantum fluxuations
- WMAP
- Binary systems - orbital trigonometry question
- Graphing the likelihood of planets orbiting doubles
- Our light lens
- Relationship: Gravitational Strength and Planck scale Energy
- Sand and stars...
- Graviton Potency
- relativity test on biologic?
- Generation of magnetic field question
- Ask Einstein a question
- Atomic nucleus as packed sphere
- explain Gravity.
- Exoplanet Question
- [when does photon get to c?]
- Non-solar/planetary systems
- Motion of the Sun?
- Sidereal clock and calendar
- Help a sci-fi author? Question about types of suns and planetary rings.
- mathpages Gravity, Entropy, and Coherence
- Exoplanet stuff for a bright ten year old?
- Big Bang
- Sag DEG question
- What if Shoemaker-Levy 9 had hit Mars instead of Jupiter?
- Basic Motion in Relativity
- delta and differentials
- Math question
- Is Sunlight On Mars...
- Currently occurring abiogenesis on Earth?
- Pioneer Anomaly
- Orbits: Cartesian to orbital elements?
- Second opinion [moving Earth via asteroid flyby]
- Renmant of 10Msun star