- Can an object moving away from you travel farther than 1 light year after 1 year?
- A bunch of questions
- Could someone tell me if I'm doing this right?
- Simple question about the light
- Constants not so constant ?
- Describe theMilky Way from a star in the halo
- Mass of dark holes and dark energy
- Connecting Telescopes
- Is the universe flat?
- Conceptual Optics and Solid State books
- Possible way to detect gravity waves
- Is nasa broke ?
- extraterestrials and this solar system
- GRB - How far away is it now
- is hunting for killer asteroids a waste of money and effort ?
- NASA Moon images ..Where are the new Images at
- Classifying planets
- Big Bang questions
- Lack of a magnetosphere and effects on atmosphere
- Updates on 2006 article titled "BB Afterglow Fails an Intergalactic Shadow Test"
- Determining exoplanet masses
- Photos of Martian Canals?
- Planet hunting
- Naked Singularities
- NASA launching costs
- What are the top 5 most critical astronomy events...
- Accurate depiction of distance and scale?
- Was the universe a BH at the moment of the BB?
- Vacuum energy, dark energy, and energy conservation
- are gravitational waves ... really waves?
- If a 5 miles wide Asteroid hit mars or venus
- "Seeing" the speed of light
- Does science specifically define "information" and "machine"?
- Universal Math
- Gravity in a dense infinite Universe
- Nibiru
- Higgs force field
- solar system creation
- What Do You Have to Study in Order to Become an Astrobiologist?
- What is the wavelength of matter?
- A strange object
- History question: when was "dark energy" first used?
- Have you seen a star picture bigger than a mere Dot?
- Question about the constancy of c
- Dark white hole
- Properties of matter with negative gravity?
- When was the color of Neptune discovered?
- Expansion
- Language (linguistics, etymology) question re Mercury
- The cosmic renaissance
- Hubble image: Is it breathable oxygen?
- How can a black hole "rotate"?
- Aren't planets really just satellites of a star?
- The last bit of an orbital rendezvous
- So now I find out matter CAN travel at c!
- Looking for Advice pn software
- Galaxy rotation curves
- The speed of light and scattering
- Rules for Time Travelers
- Effects of different atmospheric compositions
- why not fallen into blackhole at bigbang?
- Orbital electrons
- Fixed Stars & Constellations in Astrology by Vivian E. Robson
- Do we know where the Big Bang took place..
- Nukes in Space - Visible from the ground?
- Need help IDing a UFO i just pictured
- Simple Question [Bright object "near" Moon]
- How to create a micro-black hole?
- what is the difference SR vs GR?
- calculating dilation
- Hypothetical calculation - can it be done?
- state function?
- EM wave "energy" vs amplitude?
- G wave Q
- Lagrange Points
- What is the string theory?
- Looking for help converting from equatorial to horizontal coordinates
- Spherical object seen on Martian surface, hirise image.
- Astronomy, where to begin?
- 2Qs Blackholes/legrange points
- Eclispe in Asia in July
- light/energy
- Rotation - I just don't get it..
- Propulsion using Solar Sails
- What options are there for removing trash from orbit?
- stars in daylight
- Two Project Mercury Questions
- Your Average Day on a Pulsar Planet
- Twin Paradox question, can anyone help?
- How Certain is the Gravitational Constant?
- Counterclockwise Orbits
- viewing saturn's rings
- Anti-matter radiation
- Why is an antiquark not an antiparticle?
- The lost story ?
- Planetary Calculation Problems
- Distances: then or now?
- Nibiru, seeable by Russia?
- Smoke Ring
- Palomar Sleuth question
- Sea level rise resolution and the Jason-2
- How many professional astronomers in the world?
- Claim the Moon was captured by the Earth 39,000
- constellations and elements
- Question about repulsive gravity
- What causes aurora?
- How does gravity work in a rolled up dimension?
- idea, what do you think [dimensions, dark matter]
- globular cluster views
- What is this that i found on google SKY? looks like a spacecraft!!!!
- Acceleration, or variable deceleration?
- 4th dimensional travel
- motion through CMB
- expanding universe
- escape velocity
- Searching correlations
- Need Your Opinion/Comment on My Astronomy Quiz
- Could the earth just be a moon
- What colour should a spaceship be?
- The Light Side of the Moon
- summation of infinite series
- Help with RA-DEC to ALT-AZ conversion
- twin paradox for light
- A star moving last night I saw 2 am
- Please need this information on Gravity
- Tectonic plates on Earth vs other planets
- why the difference: observable vs. farthest galaxy?
- Autonomous shuttle launch
- Binary Sun Theory
- Why is the Earth moving away from the Sun?
- Signs of the zodiac +
- Source of Reduced Iron on Mars?
- Question about Blue Hypergiant stars
- Repeat of the Gregorian Calendar
- The stars in the night sky vs. Sun
- End of the universe
- Dark Matter (MACHOs)
- Atomic Craters
- Reigniting a white dwarf?
- 5 Surprising Six-Figure Jobs
- Earth Orbit
- Hawking Radiation
- Gravity from the frame of a photon
- University of Lancashire Astronomy degree
- Pycnonuclear ignition?
- Convert equatorial coordinates to horizontal
- binary giant planet system
- Distance to the edge of the Universe
- Saturn's hexagon
- Universe Expansion
- Is there an physicist to dare an answer to a question?
- hyperbolic regions in an overall flat universe?
- On the vacuum of space and atmospheres of space craft.
- Balloon in space
- Supernova going off in our galaxy ?
- Precession of the equinoxes - South version
- A black hole is cold?
- Wavelengths
- Rotation Questions
- Gravity question
- Moon Maps
- Changing mass debate question
- Photons into matter?
- Classical Taurus
- Is it possible for a Galaxy to disappear due to a cataclysm?
- Speeds of galaxies
- Entropy...
- Does the Universe look uniform to all observers?
- The color of stars
- curved space
- Question about gas giants.
- 30-50 closest G2V Spectral Class Stars?
- Telescope newb here. What did I see last night in my scope?
- Reflections, Refractions, and the Behavior of Light
- Would I Identify Certain Constellations from "Somewhere Else"?
- before the big bang - wely curvature
- Is gravity quantizied?
- Globular cluster and arm collision?
- Chromophores and sky color and Raleigh scattering
- Why do we predict a graviton?
- Advanced Radiation Warning
- If space is Expanding....
- Question? [2012]
- Did Einstein Really Say This?
- What good is math?
- Tunguska and Lake Cheko
- Effects of Solar Minimum
- Unknown Moving Object
- The Sun's rotation
- Planet on the edge of the universe
- Has anyone read any of Kenneth Dalton writings?
- need some help with sources...
- Gravity Waves and the Fabric of Space-Time
- [Gravity wave interference]
- Atlas V rocket question
- black holes
- What did I see?
- twin paradox for orbit
- Communication with interplanetary probes question.
- Photon mass and relativity
- Will a warmer atmosphere affect LEO orbital decay?
- Question about graviton polarization tensor
- Teaching "curvature of space"
- Looking for a book about deep-space objects...
- "collision" of gravity waves
- Phases of multiple moons orbiting a planet
- Another What Did i See question
- dilation for fictional gravity
- Phobos-Grunt
- Invented or discovered?
- Moon and analemma
- How Does Gravity Affect Light?
- out side space could it be what was before the bigbang?
- ISSTtemperature Constraints?
- Prevalence of Binary Star systems
- length contraction in gravity field
- AS15-85-11449HR - photograph question
- elongation of accelerated observer's ship
- Apollo missions - Saturn V launch videos
- Curved Space and Planetary Motion
- Light speed less than unity
- A universe of infinite mass?
- What accounts more for pulsar orbital decay?
- Hydrostatic Equilibrium Question
- Is there enough light to lit up the whole Universe?
- Are photons black holes?
- Wandering objects in the universe
- Saddle-shaped?
- The Galactic Motion of the Sun
- Mars Launch vs Orbital Launch
- Binary Planets
- Varying Speed of Light Theory
- expanding spacetime and relative speed
- Hipparchus Book Aratus and Eudoxus
- BB and infinity?
- A question about the form of the big bang
- General Astronomy Questions
- Gravity Force?
- New comet in the southern skies? Anyone?
- Relativistic mass "exponentiality" near c
- Another "scientist breaks speed of light" story
- Entanglement
- Einstein vs. Newton
- SETI falsification procedures
- The Speed of Light in Matter
- Solar Cycles
- How do they do that? [Liquid rocket fuel]
- supernova
- A safer Space Shuttle?
- Question about Right Ascension