full text:
http://aviationweek.com/space/spacex-nails-falcon-9-first-stage-landing
;)

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non-profit org. Play4Life in Zagreb, Croatia, EU

New York times link:

http://www.nytimes.com/2015/12/22/science/spacex-rocket-landing.html?_r=1

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rOZZ
Music
Pictures

I had my doubts but they deserve everyone's applause. I would assume that means they are capable of sending a much larger payload into orbit if a return of the booster is sacrificed.

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Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.

Yeah! For Space X!

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In 1969 the Apollo LEM landed on the Moon and restarted. Confront it with the picture of a landed rocket in Willy Ley's "Rockets, missiles and space travel".
Tullio

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In 1969 the Apollo LEM landed on the Moon and restarted. Confront it with the picture of a landed rocket in Willy Ley's "Rockets, missiles and space travel".
Tullio

yeah, & they did it with:
"The computer had 2048 words of erasable magnetic core memory and 36 kilowords of read-only core rope memory. Both had cycle times of 11.72 micro-seconds. The memory word length was 16 bits: 15 bits of data and one odd-parity bit. The CPU-internal 16-bit word format was 14 bits of data, one overflow bit, and one sign bit (ones' complement representation)."
:D

Now, that's amazing!

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non-profit org. Play4Life in Zagreb, Croatia, EU

It was a magnificent blend of technology and human bravery. Neil Armstrong risked death on a LEM module, escaping by parachute. Brave men, including those of Apollo 13.
Tullio

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Great job by SpaceX, next hurdle to bring back a vehicle from orbit and land it vertically. The Falcon 9 booster wasn't required to reach orbital velocity, that was the job of the second stage rocket. It's going to be a lot harder to decelerate from 17,000 mph and land on a pad vertically with no payload, let alone with a crew on board.

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Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.

Great job by SpaceX, next hurdle to bring back a vehicle from orbit and land it vertically. The Falcon 9 booster wasn't required to reach orbital velocity, that was the job of the second stage rocket. It's going to be a lot harder to decelerate from 17,000 mph and land on a pad vertically with no payload, let alone with a crew on board.

I wouldn't risk it with a crew...we only have few dozen of astronauts!

& so many rockets, as we can build...
;)

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non-profit org. Play4Life in Zagreb, Croatia, EU

I wonder how they will land the 2nd stage from a stable orbit. My guess is it would have to 3 burns, like the 1st stage, except the 1st burn isn't a boost-back, but on the opposite side of the orbit to bring down the periapsis into the atmosphere. But how would the 2nd stage survive reentry? Maybe a movable heat shield that covers the bottom of the stage between the 1st and 2nd burn? Maybe the 2nd stage can't be reused

I don't think they have plans to reuse the second stage.

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Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.

I wonder how they will land the 2nd stage from a stable orbit. My guess is it would have to 3 burns, like the 1st stage, except the 1st burn isn't a boost-back, but on the opposite side of the orbit to bring down the periapsis into the atmosphere. But how would the 2nd stage survive reentry? Maybe a movable heat shield that covers the bottom of the stage between the 1st and 2nd burn? Maybe the 2nd stage can't be reused

No heat shield, would burn up, actually will burn up, most space flights aren't allowed to add much debris to earth orbit any more.

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The landing was one of the best things I would remember 2015 for.

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The proud owner of IGCSE World.

The meteo satellite Jason 3, a joint cooperation between NASA and France's CNES, is scheduled to be launched Sunday on a Falcon 9 rocket which will attempt a landing at sea of its first stage. This Falcon 9 is an earlier version of the recently launched Falcon 9 which landed on land, and the attempt to land at sea is also an experiment. Its main mission is to place in orbit Jason 3, which will monitor the oceans and their variation in height for three years. The launch will be at Vandenberg USAF base in California and will be beamed on NASA TV.
Tullio
SpaceX of Hawthorne,California, has also been awarded a contract with NASA for building a Space Resupply Mission vehicle to ferry materials to the ISS, together with Orbital ATK of Dulles, Virginia, and Sierra Nevada Corporation of Sparks, Nevada. It looks like President Obama was right when he opened space to private firms.

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Reminder Jason Webcast online Sun, Jan 17 2016 10:42 AM PST — Sun, Jan 17 2016 12:00 PM PST

Webcast Link Here.

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I believe live coverage starts in a couple minutes here 11 AM EST
https://www.nasa.gov/multimedia/nasatv/index.html

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Thats about 18:30 UTC

...Actually about 16:30 - I think you were on the wrong coast rather than the east coast

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Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?

The Jason-3 launch is targeted for a 18:42 UTC launch from Space Launch Complex 4E at Vandenberg Air Force Base, California.
You could see the live streaming here.
https://www.youtube.com/watch?v=ivdKRJzl6y0

The Space X webcast give a lot of extra info. That is the what I posted. It will be live at 10:15 Pacific.
Watch it here. http://www.spacex.com/webcast/

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