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Commented on SpaceX Unveils Fully Reusable Falcon 9 Plans
Why Ula never tried that reusability idea of spacex ? and maybe Sls boosters can uses some of that technology?... -
Commented on SpaceX Is Building the "Grasshopper" RLV
Nice idea for a reusable liquid booster for Sls..... -
Commented on SLS, Saturn V, And Ares V Color Schemes (Update)
"1) They have lots of SRBs on hand lying around." liquid booster also are lying around,,Atlas V cores.. and with liquid boosters you can put 4 or 2 or 6,,while srbs are only 2..and more liquid cores are in construction... -
Commented on Bolden's Evolvable SLS
I think its about weight loads,etc.. The decision about solids or liquid boosters must be made now ,,even if they were produced later.. even launch pads are different for solids or liquids.. If nasa leaves this decision -for politics- for... -
Commented on Progress Mission To ISS Fails
hurry up Spacex..alot of people are counting on you.. and be carefull soyuz has escape tower,,so with engine shut down,the crew will be safe.. when was the last time Progress failed?... -
Commented on Pushing for Solids, SSME etc. for SLS
"This SLS "liquid vs solid" debate is pointless. What's it going to ultimately do? Under one scenario, we get Liquid Boosters in 2032. In another scenario it delays any SLS launch by years as this entirely new booster is developed.... -
Commented on SLS: A Rarely Flown Rocket to Nowhere?
"Then, the true exploration "game" becomes the missions themselves that can have hundreds of time better CBA's ... because they don't carry high cost burdens to begin with, such that manipulation/"pork"/corruption comes into play to hijack exploration yet again." So... -
Commented on Boeing Announces Commercial Crew Rocket Selection
so the new commercials spacecrafts will dock fast? thats better I think because the long trip mean cost,and fewer people onboard.. Dragon with 7 people,cannot stay in orbit for 2 days..I think... -
Commented on Boeing Announces Commercial Crew Rocket Selection
Some questions. 1. Whats the mass of Cst-100? More that dreamchaser withj atlas V 402(10t payload?) the 1 solid of the 421 doesnt create problems asymmetrics etc?i know http://www.youtube.com/watch?v=kZ_VfzAFCJw that 411 flew 3 times,ok I see 2. Why in Cst-100... -
Commented on Musk Talks About Getting to Mars
"- Dragon LES will use Draco fuel "you either want to maneuver on orbit or escape..."." and after use it for orbit .. how much will have for land rocket landing? will add more tanks later?... -
Commented on Russia Has Decided To Throw the ISS Away in 2020 (Update)
shuttle didnt have escape system for so many years.. why dragon must have? when already falcon 9 can shut down the engines,,while shuttle srbs couldnt..... -
Commented on Russia Has Decided To Throw the ISS Away in 2020 (Update)
For orbit boost,,Vasimr I think will fly on Iss 2012 and do it with the dump hydrogen for free..... -
Commented on What Name Would You Pick for Pluto's Newly-Discovered Moon?
"Three-headed Cerberus is Hydra's sibling. "Cerberus: How could you go wrong with a name like that?" Showalter said. "But, unfortunately, Cerberus is already the name of an asteroid. The IAU balks at the idea of using asteroid names, although it's... -
Commented on What Name Would You Pick for Pluto's Newly-Discovered Moon?
Hell of a Choice: Cerberus Leads for New Pluto Moon Name http://www.lifeslittlemysteries.com/pluto-new-moon-p4-name-cerberus-1870/ i though it myself,, but other though it too..... -
Commented on What Name Would You Pick for Pluto's Newly-Discovered Moon?
Cerberus... the 3 headed dog guarding the underworld.. is there planet with this name?... -
Commented on What Name Would You Pick for Pluto's Newly-Discovered Moon?
As a greek..Neos alitis sounds to me stupid and offensive.. alitis in common greeklanguage means punk,,kids on the streets ,and generally is not good word.. If they want they can give an ancient name from greek mythology .. There are... -
Commented on Rejoice Comrades! Glorious Era of Soyuz Begins (Update)
From wikipedia.. Soyuz has 8.5 cubic metres of pressurized living volume,totaly with 7200gk mass Dragon has 10 cubic metres in the capsule with 10t total mass.. and full reusability Big improvement,, Dragon is the next soyuz,,better in every aspect.. Soyuz... -
Commented on Rejoice Comrades! Glorious Era of Soyuz Begins (Update)
the era of soyuz maybe not,,but the era of mostly capsules yes. Dragon,cst-100,,and the only spaceplane dreamchaser..... -
Commented on Ed Weiler Thinks Obama's JWST Budget = "Road to Nowhere"
space repair in the future will be done with robots mostly,,not with big shuttle like trucks with people in suits moving they bulky fingers..... -
Commented on Mike Griffin is Still Unhappy
"I believe that space exploration beyond the most rudimentary milk runs to the ISS; will continue for the foreseeable future to be difficult, expensive and dangerous. A task largely suited only for a great Nations that can look beyond the... -
Commented on Mike Griffin was against the Space Shuttle before he was for it
"The idea of a throwaway capsule is wrong. " Orion can be made like cst-100 or dragon,,reusable up to 10 times maybe.. Without mass limits with Sls,,Orion can have airbags and ground landing ... weak ares 1 was the problem... -
Commented on The Economist Still Is Not Thrilled With Humans in Space
When in 1-2 years the Virgin galactic spaceship Two will start flying simple people into space.. then we wil see truly the mass media to care about space.. with 200000$ even tV shows will give tickets.. and Channels with cameras... -
Commented on The Economist Still Is Not Thrilled With Humans in Space
There always pessimists on the world.. Fortunately we discovered america,,the planets,,and we will discover the stars...... -
Commented on SLS Decision Soon?
9 Merlin engines for every booster is too much I think.. 4-5 boosters will be the Max?36-45 engines except the ssmes? More plausible for me is Taurus 2 booster NK-33 engine or Atlas V with rd-180 engine... -
Commented on SLS Decision Soon?
Good idea about Atv/Dragon..because Dragon is single capsule without service module.. But it doesnt have Beo capabilities,even leo manned for now. While 8mt Orion capsule is close to ready,,and I didnt see photos of service module construction.. while atv is... -
Commented on SLS Decision Soon?
"I think that there would even be enough spare payload to fit a larger MPS to the ATV (which I call ATV-Lab) to enable it to perform LOI and ROI." with the same atv engines? there are far weaker than... -
Commented on SLS Decision Soon?
"pair up the ATV with the Dragon (I haven’t looked at the relative dimensions of the two vehicles;" Dragon is 3.5m Orion is 5m Atv is 4.4 m..right in the middle.. Nasa thinks about Atv for Beo exploration vehicle also..pressurized... -
Commented on SLS Decision Soon?
http://www.aviationweek.com/aw/generic/story_channel.jsp?channel=space&id=news/awx/2011/06/21/awx_06_21_2011_p0-338688.xml&headline=ESA,%20NASA%20Discuss%20Joint%20Manned%20Missions see that? Nasa and Esa talk about Orion with Atv Service module..or something like that..the desicion will be until fall.. Maybe its a good idea?... -
Commented on SLS Decision Soon?
" For the solids, first the nozzle is jettisoned then the side of the solids sliced open to cut the internal pressure and terminate the thrust." This can be used on the pad?... -
Commented on SLS Decision Soon?
Wow.. great explanations,,for us simple space fans.. bravo..! So you say that if Nasa had enough money the best for shuttle was liquid boosters? solids were chosen only because of low price for costruction?...