View Full Version : Astronomy & Cosmology

Pages : 1 [2] 3 4 5 6 7 8 9 10

  1. Universe may not be expanding...
  2. Could the expansion of the Universe be subject to negative feedback?
  3. Voyager
  4. What is the heaviest element our Sun can make?
  5. Does the International Space Station slow down?
  6. Reading the Universe.
  7. Are we living inside a black hole?
  8. Mercury: A Case For Settlement
  9. Getting useful data from a redshift
  10. Understanding reference planes for NASA's "Horizons" tool?
  11. Life on other planets
  12. Is there a space/zone where the Universe Is?
  13. Speed of Light, should be named different?
  14. Catalyst: 29/8/'13
  15. Ununpentium and supernova
  16. Could it be possible to determine if the Universe rotates?
  17. Open roof space station?
  18. Drilling vs. Melting
  19. Swimming pool on the moon
  20. Widmanstätten in meteorites
  21. Super-solar flare
  22. How to make a Universe out of Nothing. You decide.
  23. faster than light speed
  24. Interstellar meteorites
  25. Near-earth gravity
  26. What is "Speed increment at infinity" ??
  27. Your Age on Other Planets
  28. Distance in space?
  29. Gravitational lensing or hot gas?
  30. Questions for Brian Greene
  31. which star is considered the brightest start? and why?
  32. Explosive Issue
  33. Hubble Sees the Fireball from a "Kilonova"
  34. Super-supernovae spell trouble for dark energy
  35. Supernova?
  36. Spiral galaxies have very flat disks. Why?
  37. Vacuum box test for: gravity, acceleration or centrifugal force?
  38. If the universe is spatially finite and flat, could you fly 'out of space'?
  39. Galactic electric fields
  40. Venusian moon
  41. Star drifting in disc shape system
  42. Is the idea of the Oort cloud dated?
  43. What is a feasible way for the nature to generate an Atom?
  44. Help bring radio astronomy to the public
  45. Question about "Ancient Aliens"
  46. matter and the expansion of the universe
  47. What is the escape velocity of VY Canis Majoris, and the relation between mass and volume?
  48. Gliese 667C
  49. Cosmological infinities
  50. concept of the flow of the time
  51. Space travel question!
  52. Apparent Red shift in a discrete Newtonian reference frame
  53. How much rocks is needed for it to melt?
  54. Are Free-floating Planets 'Planets'?
  55. Arrow's of time
  56. Big Asteroid Flyby on Friday, May 31
  57. Doubts in big bang theory.
  58. is space contains energy in it ?
  59. relative motion
  60. closed regenerative systems
  61. Explosion on the moon
  62. Hawking: Mankind has 1,000 years to escape Earth
  63. Planet-Hunting Kepler Spacecraft Suffers Major Failure
  64. More Questions about Light
  65. Could this planet support liquid water
  66. Orbiting a Black Hole
  67. exploding star?
  68. Another Earth In Our Solar System.
  69. Size of the universe
  70. Planets
  71. Quantum-what-now?
  72. Looking at the moon during the day
  73. A new look at DARK MATTER & DARK ENERGY
  74. Help with some easy basic formula about astronomy
  75. Combining gravity and quantum mechanics. What are gravitons then?
  76. Mars One - Would You Go?
  77. getting off this ball of rock
  78. 100% certain I am at the centre of my universe.
  79. NASA touts plan to grab asteroid as 'unprecedented technological feat'
  80. Jupiter Earth connection
  81. A phone call at the speed of light?
  82. produce antigravity to get to space quicker
  83. Total recall question
  84. Einstein's Theory - Which One is Moving?
  85. recent meteors and fireballs
  86. Black Holes
  87. Singularities and nothing.
  88. Red shift dilemma.
  89. Time Dilation at Near Lightspeed
  90. Basic Question
  91. Comets
  92. "Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us." -Calvin What did he mean?
  93. If Earth had a 45 degree tilt?
  94. Astronomical Science
  95. Drafting a Comet
  96. Is our solar system moving up and down from the galaxy plane?
  97. Stellar Nuclear Fusion
  98. why cant we see the local interstellar cloud?
  99. Warped Space
  100. Black Hole, future and past
  101. An expanding universe?
  102. Constellation of Origin?
  103. Astronomy Magazine
  104. Singularity
  105. Confirmation of Jupiter
  106. Theory that reduces complexity of dimensions to base units
  107. Big bang
  108. What exactly is antimatter?
  109. dark energy, obviously
  110. The Sun is expanding, or are we moving closer?
  111. What am I seeing, really?
  112. Meteorite fall in Chelyabinsk!
  113. how come ????
  114. Space is curved relative to what?
  115. A Sort of Problem in Astrophysics
  116. Earth-like planets are right next door
  117. lorentz?
  118. math forum?
  119. Ringside seats for the Big Bang
  120. Northrop Grumman Completes All Flight Optics for NASA's James Webb Space Telescope
  121. Iron bullets from orion nebula
  122. learning black hole theory
  123. The Big bang Theory v The steady state theory v World in a world.
  124. Heisenberg's Uncertainty Principle as applied to Black Holes
  125. space regarding collapsing stars...
  126. Would we have a Big Bang Theory today if...
  127. How feasible is using railgun technology to launch space probes?
  128. The Universe 'froze' its way into existence in a Big Chill, say physicists
  129. Shocking truth, biggest item in universe 10.000 more big than our milky way
  130. Telescope
  131. Challenging Cosmology
  132. question on meteorite from mars
  133. Orbit of the Earth
  134. Comets PANSTARRS & ISON
  135. Odd object on mars
  136. How big can a rocky planet get?
  137. Reviving the Mars?
  138. Gamma ray bursts
  139. some interesting theory about our universe
  140. Astronomy Notes
  141. Astronomy Notes
  142. Deep Sky
  143. Q about satellite
  144. questions on planet formation
  145. "Active Galaxies"
  146. What if we get 2 moons ?
  147. Andromeda question
  148. Winter solstice - December 21
  149. Probably another dumb one...
  150. Black hole inside earth?
  151. Future eclipses
  152. Standard Candles in an Expanding Universe
  153. May some Quarks be origined by a Black Hole explosion?
  154. RIP Sir Patrick Moore
  155. May Black Holes be considered as ripped of space-time?
  156. Technologies to wider the current limmits of Our Universe
  157. HD40307G News
  158. Exoplanets
  159. Moon
  160. Life in the Universe.
  161. Moon stations
  162. Meteor showers
  163. A dizzying hypothesis
  164. Mysterious Cosmic 'Dark Flow' Tracked Deeper into Universe
  165. Perseid meteor shower 2013
  166. Another Black Hole Question
  167. Big Bang
  168. Weird
  169. Explosions in Space
  170. radio signals
  171. Super massive black holes and galaxy formation
  172. NASA's Curiosity's secret discovery after sampling Martian soil.
  173. Libration of a Tidally Locked Planet
  174. Simple Law of the Universe that would probably be trashed!
  175. Is Star Trekking just around the corner
  176. tidal friction
  177. M theory - best one so far?
  178. Location of Earth in the Universe
  179. LHC results and dark matter
  180. Is it The Moon will Eclipse the Sun within the next15/16 Hours.?
  181. Matter V Anti-matter imbalance and inflation
  182. Some Questions on Astro-Physics
  183. Another dumb one
  184. Down under people...yes you Westward
  185. Photosensitivity
  186. Inverse square law resolves Olbers' paradox
  187. mine elements from outer space?
  188. A galaxy a trillion light years away...
  189. Photons from Stars
  190. Is the universe alive !?!?!?!?!?!?!?!??
  191. Super Fast Pictures of light
  192. The Stars We See at Night
  193. Solar System Geography.
  194. The sun
  195. Interesting Things....?
  196. Return to Dumb Questions
  197. David
  198. Why is oxygen the third most abundance element on the sun?
  199. Divine Space - first big game with 'real' universe
  200. Meteorite that doesn't burn?
  201. Felix Baumgartner Jumps from about 35km. Next step?
  202. Question About The Big Bang
  203. Is the neon a poison, that overwhelming the origin of life?
  204. NASA stupidity
  205. Why the existence of the Universe does not need to be solved (image heavy)
  206. Half moon tilted lit up
  207. Stars, Milky Way, Cosmology
  208. Comets, Meteors, Asteroids
  209. Moon facts
  210. Books on the Likelihood/Nature of Extra-Terrestrial Life
  211. How did the universe get to have so many neutrons?
  212. Harvest Moon - September 29, 2012
  213. Astronomy in the Atacama Desert.
  214. Another shot from the hip by NASA? Gravel on Mars
  215. Universe or Multiverse
  216. Spectacular (once in a lifetime?) comet expected next November (2013)
  217. Huge Earth-ish planet?
  218. Missing Baryons Found?
  219. A more massive mars
  220. Clarification needed on exactly what accelerating vs constant expansion means
  221. Autumn equinox - first day of fall
  222. If Mars was closer to the sun
  223. Sirius Color Change Mystery
  224. Planets
  225. Atmospheric retention
  226. What if the moons of gas giants where closer?
  227. Venus passing in front of the sun
  228. Stellar Black Hole Creation
  229. Calculating apparent magnitude of Saturn from Rhea
  230. Big Questions About the Sun and Solar System - 10 Year Agenda For Answers
  231. Questions on my hypothetical exoplanet?
  232. Why are so different the galaxies of the HUDF picture?
  233. Science Channel - How The Universe Works
  234. Two alien planets found with twin suns
  235. Are the sun and moon nearing each other along the time ?
  236. Using the CMBR as a frame of reference.
  237. Wow!!! (Curiosity)..
  238. Could anything reverse the pull of Earth's gravity?
  239. The curious motions of venus... Can we explain it?
  240. What kind of celestial body would be best for forming life and/or complex molecules?
  241. Possibilites of life on Europa?
  242. Acid Content of the Atmosphere of Venus
  243. Is the age of the universe the same in all frames?
  244. Curiosity Rover landing at the weekend
  245. A new way of thinking about G and c. Constants?
  246. Why we need a 5th dimension to undestand the shape of the Universe?
  247. Can a practical reason be given to explain the vast interstellar distances?
  248. How does sun an other stars look from space?
  249. Southern Skies Star Party
  250. How can a Neutron Star have carbon atmosphere?