Subcategories:
You can see the full category hierarchy on the Category Map.
  | 
  | 
| ALDEBARAN | Across Lightyear Distances, Earthbound Beams Are Received At Night | 
                Tony McCoy O'Grady. (Taurus, the Bull, is a zodiacal constellation that contains the orange-hued star Aldebaran, the 13th brightest star in the sky and 45 times larger than the Sun.) | 
| BLAST OFF | Burn Loads And Surge Through Our Fragile Firmament | 
                Tony McCoy O'Grady | 
| EUROPEAN SPACE AGENCY | Exalted University Researchers Orgainsed Project Emulating American (NASA) Space Programme - Albeit Cannot Expend Asmuch Gelt Each New Calendar Year | 
                Tony McCoy O'Grady | 
| FOCUS | For Orbits, Centre's Usually Star | 
                Angela Brett | 
| IA | Its Astronomical | 
                Rico Leffanta (Ia is Hawaiian for Milky Way) | 
| METAL | Most Elements That Aren't Light | 
                Angela Brett (astronomers call any elements heavier than helium 'metals'.) Science:Chemistry  | 
| METEORS | Moving Endlessly They Encircle Our Rotating Sphere | 
                Tony McCoy O'Grady | 
| MISQUOTE | Most Idiots Seldom Question Understanding Of The Eclipse | 
                Rico Leffanta Communication  | 
| MOON | Monthly Orbiter Of Nighttime | 
                Tony McCoy O'Grady | 
| MOON (2) | Makes One Odify Nighttime | 
                Roger Williams | 
| MOON (3) | Most Often Observed Nightly. | 
                Roger Williams | 
| NASA (2) | Never Attended Starfleet Academy | 
                Tony McCoy O'Grady Re-expansions of existing acronyms  | 
| NASA (4) | Not Another Shuttle Accident! | 
                Angela Brett, after the space shuttle Columbia broke up in re-entry. People & Relationships:Disaster  | 
| NORTHERN LIGHT | Nightly Observance, Rays Tints Have Each Ring Naturally Living In Great Hues. Tremendous | 
                Jan Morgan | 
| ORION | Often Resplendent In Our Nightsky | 
                Tony McCoy O'Grady | 
| PATHETIC | People Against The Hypothesis Earth Travels In Circles | 
                Rico Leffanta Assorted Adjectives  | 
| PERSEIDS | Particles Entering Remote Stratosphere Emit Illuminations During Summertime. | 
                Tony McCoy O'Grady | 
| PLASMA | Pyrolysis Looms As Spacecraft Meets Atmosphere | 
                Angela Brett, who hopes that the term 'pyrolysis' can apply to the separation of atoms into ions and electrons in plasma. Science:Physics  | 
| POLE STAR | People Oriented Looking Ever Skyward. The Astrolabe Resulted | 
                Tony McCoy O'Grady | 
| PULSARS | Probably Unpopulated Locations, Some Are Remotely Studied. | 
                Tony McCoy O'Grady | 
| QUASARS | Queer Unusual And Strange Areas - Radiation Sources | 
                Tony McCoy O'Grady | 
| ROCKET | Roaring Off, Carrying Keen Extra Terrestrials | 
                Patricia Rix Science:Physics  | 
| ROCKETS | Reach Orbit Converting Kinetic Energy, Transporting Satellites | 
                Philip Edwards | 
| SATELLITE | Sat A 'Tall Electric Lamp' = Light! It Truly Enlightened! | 
                Charles H. Montgomery, Jr. Saw 'SATELLITE' thought 'Sat A Light.' Words & Wordplay  | 
| SETI | Spread Ears Toward Infinity | 
                Angela Brett (SETI usually stands for the Search for Extra-Terrestrial Intelligence) Re-expansions of existing acronyms  | 
| SETI (2) | Some Expect Tiny Irishmen | 
                Angela Brett, referring to 'little green men' (see SETI) Re-expansions of existing acronyms  | 
| SETI (3) | Spacemen Everywhere Tune In | 
                Angela Brett (see SETI) Re-expansions of existing acronyms  | 
| SETI (4) | Sentience: Earthbound? The Investigation | 
                Angela Brett (see SETI) Re-expansions of existing acronyms  | 
| SETI (5) | Seek E. T's Integers | 
                Tony McCoy O'Grady (see SETI) Re-expansions of existing acronyms  | 
| SETI AT HOME | Supercomputers Everywhere Try Isolating Alien Technology's Hallmark - Obfuscated Mathematical Equations? | 
                Angela Brett Computers  | 
| SETI AT HOME (2) | Sift, Eventually, Total 'Interference' Among The Heavens Over Mother Earth | 
                Tony McCoy O'Grady | 
| SHUTTLE | Spacemen Have Used This To Leave Earth | 
                Angela Brett Transport  | 
| SIDEREAL | Starlight Inspires Desires Enchanting Romantics, Especially After Libations | 
                Rico Leffanta People & Relationships:Love & Lust  | 
| SOL | Source Of Light | 
                Tony McCoy O'Grady | 
| SOUND IN SPACE | Sign Of Uneducated Nitwits... Doesn't It Need Some Perturbed Atoms, Compressing & Expanding? | 
                Angela Brett, when Jeff gave sound in space as the reason for calling STAR WARS FOUR Un Realistic. | 
| SPACE | Scientists Puzzled About Curvature, Etc. | 
                Angela Brett | 
| STAR | Something That Astronomers Research | 
                Angela Brett | 
| STARS | Shining Things Are Radiation Sources | 
                Tony McCoy O'Grady | 
| STARS (2) | Still Twinkling After Repeated Seasons | 
                Roger Williams | 
| SUN (2) | Star, Usefully Nearby | 
                Philip Edwards | 
| SUN (3) | Solar Unit Nearby. | 
                Roger Williams | 
| SUNRISE | Sun's Up Now, Resulting In Sleep Ending. | 
                Roger Williams Time Sports & Recreation:Relaxation  | 
| SUNSET | Sun Unseen Now Signifying Evening Time. | 
                Roger Williams Time  | 
| SUNSET (2) | Sun's Unseen Now, Since Earth's Turning | 
                TMcCO'G Time  | 
| TIDE | Then It Does Ebb. | 
                Roger Williams Time Places:Waterways  | 
| TELESCOPE | This Enhances Longsightedness - Even See Cosmic Objects Parsecs Extrasolar. | 
                Angela Brett | 
| UMBRA | Usually Makes Blacker Region Appear. | 
                Angela Brett | 
| VACUUM (2) | Visit A Cold, Uncaring Universe - Matterless! | 
                Angela Brett (it must be uncaring, because in a vacuum, nothing matters.) |