- Asteroid 2011 MD orbital characteristics
- The 'material' of a black hole
- Space Rocks on a Collision Course with Earth...Are we just sitting ducks'
- Closing speed greater than c?
- Question regardin "Expanding Confusion:common misconceptions of cosmological horizon"
- What is the fastest material object currently?
- Product of Force and distance
- Replacing the sun with a black hole
- Magnetic warp drive ?
- travelling at the speed of light
- About the end of the universe
- Width of the "Twilight Band"
- Another question about Energy and the early universe..
- Magnetic fields and radiation (Stars and Planets)
- The closest 50 stars to our solar system - Spoilers, please :)
- Particle Wave Duality Question
- The end of our universe, and life within it.
- graininess of space
- Voyager Spacecraft
- Mysterious light burst captured by Hawaii Telescope
- Simulating an Ephemeris for an ELE
- Historical Earth-Mars Hohmann transfer orbits
- Position derivatives needed for orbit
- i have a question. [time, Earth to Betelgeuse]
- Are there any theories about the end and beginning of the universe that go like this?
- Mars' Atmosphere
- Accelerating to the speed of light (sort of)
- Sending a signal to a star
- M51 Supernova: Neutrino or Gravitational Wave Radiation Detections?
- Simple Gravity Question
- Apollo original slow-scan tapes, did they record biomedical telemetry or only video?
- Jupiter, radiation and slingshots
- Understanding quantum entanglement and non-locality.
- Flashing Satellite
- Anything else except M31 to collide with us?
- dark matter found mathematically?
- Alcubierre FTL bubble with zero mass and small volume?
- July 4th meteor shower
- sub planck length theories
- "Safety Not Guaranteed" guy on Mars
- Total recombination rate of Hydrogen
- Sound in space.
- Sunspot Cycle and Global Warming
- Nearest brown dwarf
- How long will the Apollo relics on the Moon survive?
- Radial Velocity Technique
- Collisional Excitation Cooling
- Where was Alpha Centauri?
- Some heliosphere questions
- Potential Energy and Time Dilation
- Where is the Elenin Tail??
- Which way is the galactic centre/center?
- How Hot is the Sub-surface of Venus?
- Sky/weather phenomenom
- Solar power at intermediate size scale
- What are constellations affixed to?
- Is Dark Matter Really Just Plasma?
- Von Braun's Mars Plan
- Can gravity be created with a Black Hole?
- energy of fusion
- Matter near the speed of light
- Help Needed With Video Of The Moon
- Black hole or neutron star bending light
- Big Bang speed limited?
- Who is speeding away from who when time dilation occurs?
- As the Universe ages does it become less dense?
- Blackhole question
- Another black hole question
- Will the Voyager probes ever leave the Galaxy?
- Imaging the Suns photosphere
- Temperatures
- dark flow = rotation ?
- The view from Europa?
- Question about Hubble Deep Field
- Blowing up asteroid
- Magnetically Inflated Cables- NASA Advanced Concepts Study (Possible 1km Telescope)
- Celestial bodies positions - for a fiction story
- need a picture
- [galaxy rotation curves]
- Practical applications of heliocentrism
- How Fast?
- Acceleration of the expansion of the Universe and open Universe?
- The radiation belts of the gas giants
- Binary Black holes
- big bang theory and size of the universe
- Weird things on Microsoft Wordwide Telescope and Google Sky
- More alternatives than Dark matter + MOND ?
- How does wind speed affect the doppler effect?
- What sort of optical illusion did I experience (wandering stars and the UFO)?
- Galaxies and black holes.
- naive cosmology question
- Oort clouds.
- Potential 'terrestrial' planet zone in newly found star systems?
- Black hole limit?
- Models?
- Habitable zones
- Calculating relative time intervals
- Quarsar galaxy
- Ceres-sized worlds
- A new way to explore universe
- question about the sr? answer to the perihelion problem of mercury
- A new way to measure the Hubble constant
- Uranus' Axial Tilt
- If the Earth had rings like Saturn
- Big world... little gravity
- Our Sun's binary companion vs. extra solar planet detection
- Supernova... how close is too close?
- How real is this?
- lone system
- Golden planet?
- How long 'till 99% c?
- Time stretch due to distance?
- Could light 'horseshoe' around a big enough mass?
- Is it possible to build a vehicle that can accelerate to .99 C?
- First Post: What is beyond the limits of space, and what was outside the big bang....
- Infinite universe expanding!?!
- Curved dimensions
- Requirements for a closed Universe
- Question Re: Time Dilation from Distant Quasars article in Notices of RAS 2010
- How are atoms entangled, and can it be done remotely?
- The Universe and planets
- Beyond the Known Limits
- Apollo 11 Star Chart
- Elementary particle question...
- Energy question..
- On Q&A: Debates and Civility. What you should do if...
- Ephemerides of Venus
- A Question about Neutron Stars??
- Light experiencing time
- Elenin's tail
- Is there a name for system that assigns star magnitudes?
- Why are the earth and martian days so similar
- Star Sirius main key blueprint Cheops pyramid !!
- The universe as a bubble
- Sol Nova
- The angular size - redshift relationship and alternative cosmological coordinates?
- High inclinations and polar orbits?
- Questions on Quantum Entanglement
- Temperature of a Black hole
- Black hole and Dark Matter
- Number of Stars in the universe
- Question on rotating supermassive black holes
- Big space station, very old...
- question about macaws' billiard ball mmx
- Laws of thermodynamics interdependence
- hunt for winkers
- Curiosity on the Discover channel [negative energy]
- Expansion of the Universe
- Earth view from space
- Star Distribution
- Interstellar Travel & Time Dilation
- Question about a hypothetical planet
- Stellar evolution and variable stars.
- Why the differences between northern and southern craters on Mars?
- Infrared Astronomy
- 5-dimensional Earth
- How does a cosmological redshift turn a hot blackbody into a cold one?
- Feedback Request for World Building
- If the moon was moving slowly toward the earth
- Spaceship concepts from The Dream Machines
- inverse law and zeno
- Supernova Light
- google mars??
- Radiative recombination?
- UV stars
- Questions about Planets, Moons, and Rings...
- What would happen if you took off from the North Pole?
- Milkyway collision
- Eclipses- does the moon ever pass directly in front of the sun?
- Milky way
- The Bacchus / Venus Impact
- Sky on Venus
- Spatial dimensions
- nucleus of iron or other elements
- How do astronomers measure, calculate, and/or estimate the value of Dark Energy?
- can gravity= curvature of space-time be applied to other forces?
- Ice line(?) in condensing protoplanetary discs
- liquid water zone
- FTL? - Time Dilation
- Big Bang Ex Nihilo
- somethings not right [Gas giants surface]
- novice question [Aldebaran, black hole, effects]
- Metallic hydrogen surface
- Surface gravity on bodies without a surface
- Why flat
- Elementary Q about extrasolar trajectory
- Thermal speed versus bulk speed
- Solar wind ion and electron densities
- Stars falling through space (fomerly: TSQEAH...)
- Could metamaterials protect you from a GRB?
- A Question about Spacetime Geodesics
- A Reservoir of Ionized Gas in the Galactic Halo
- Mysterious bubble cloud sighting in China
- What is a good book for a Novice?
- Metals and rare elements on other planets
- Small (ish) brown dwarf or a super humongous planet
- Solve: Change in density of matter?
- star clusters
- Are there any other possible sources of CMB, other than big bang
- Stars in Depth: Distance Between "Eyes"?
- A ? regarding gravity and time...
- Notions of space and time in an Inflationary Multiverse
- Time [travel] question
- If the Sun suddenly stopped burning
- [non-nuclear sun]
- Tidally locked planets/moons
- satellites, manned spacecraft, space station during meteor showers
- Constant Changing Sky
- Neutrinos/Plasma in space, charged plasma exchange between bodies.
- String theory & Entanglement.
- Red Moon
- NEW cold stars.. A question.
- Recent and ancient weather on Mars
- Planets
- What was i looking at?
- Super-earths in our solar system
- Hot gas giant in our solar system
- Common barycenter stability
- Two moons over Miami
- Three habitable planets in our solar system
- Earth-like worlds around a gas giant
- Geocentrism
- Venus is a lot cooler now
- Lunar Apollo "atmosphere"
- Orbital decay of stars
- Cosmological inhomogeneities, dark matter, filaments?
- Black Body Ratios
- Sun axial tilt relative to Earth season
- Radio Waves
- Can the Earth be seen, at all, from the Moon's Far Side?
- Supernova-boosted Radio Transmissions?
- When the Sun leaves the main sequence how far out will the HZ shift?
- Invisible world tugs on Super-earth..news
- Double slit experiment
- Ecliptic and Galaxy
- Strange object in Centaurus
- Gravitational slingshots
- Computing an orbit, 3 observations from Earth : hmm, that's moving too....
- the shape of the universe
- Earth from the Moon.
- Using Up The Hydrogen
- super Super SUPER EARTHS?
- how the universe was created / my thought
- Scientists Doing Their Best And Most Important Work When Older
- [KABOOM asks about 'flat' Universe]
- Question about a Position of absolute stillness relative to the universe and beyond.
- New But not new to UniverseToday/BadAstronomy
- Matter Infalling An Ignited Star Question.
- Expanding Universe Question..
- Triton and the inner moons