Tuesday, November 24, 2015

endgadget- Space Race

Jeff Bezos beats Elon Musk's SpaceX in the reusable rocket race

Blue Origin, the private space firm owned by Amazon's Jeff Bezos, has just dropped a huge, unexpected gauntlet in the race to develop a reusable rocket. It just launched its New Shepard space vehicle (video, below) consisting of a BE-3 rocket and crew capsule to a suborbital height of around 100.5 kilometers (62 miles). The capsule then separated and touched down beneath a parachute, but more importantly, the BE-3 rocket also started its own descent. After the rockets fired at nearly 5,000 feet, it made a a controlled vertical landing at a gentle 4.4 mph.
So far, SpaceX has managed to get its own reusable booster close to its barge platform, but hasn't nailed the landing yet. Elon Musk's company does have a more daunting task, however -- its Falcon 9 reusable first stage is propelling the rocket to an orbital, not suborbital altitude. While SpaceX's rocket separates at a similar height of around 50 miles, its speed at that point is much faster than that of New Shepard -- around Mach 10 compared to Mach 3.7. As a result, it continues to an apogee height of nearly 90 miles, so it has a lot further to fall. During its last attempt, the rocket unfortunately exploded early in the flight, setting the program back significantly.
Bezos boasted that the BE-3 is "now safely tucked away at our launch site in West Texas, [and] is the rarest of beasts—a used rocket." He added that "it flew a flawless mission -- soaring to 329,839 feet and then returning through 199-mph high-altitude crosswinds to make a gentle, controlled landing just four-and-a-half feet from the center of the pad." In the video below, you can see the rocket approaching the ground at dramatically high speeds, then slowing rapidly with a final rocket thrust as the landing gear deploys. Meanwhile, the drogue parachutes on the capsule unfurled at 20,045 feet, helping the crew craft make a (fairly) gentle desert "splashdown."
The New Shepard and BE-3 are intended to be used in Blue Origin's suborbital space program, mainly for a commercial space tourism. Blue Origin hasn't set a date for flights yet, but the program is intended to carry six astronauts to the boundary of space at around 100 km in altitude. Also in that race is Virgin Galactic, which itself was badly set back by its SpaceShip 2 crash that resulted in the death of a pilot. Blue Origin's BE-3 rocket may also be used by United Launch Alliance to power the second stage of its Vulcan orbital rocket.

cleptomaniac

Every time I see these types of videos it makes me excited for the future of space travel. Too bad I won't see the full benefits of this research in my lifetime.

tanders04

Why are so many tech sites getting this wrong this morning?

Bezos didn't beat shit. Space-x has landed dozens of times in the same fashion. The barge is the moonshot part. 

aptalca

Crash landing is not the same as landing

the-Mike_D

Isn't that like comparing apples and oranges? I thought SpaceX went into orbit and did a couple of laps before fighting horizontal reentry which would be much much harder than just going straight up and down, and then they desired to land it on a tiny sea barge. I could be misremembering about the doing laps in orbit though.

Puttelino

It's an impressive feat. But Bezos can come back when he lands an actual production rocket.. This has nothing to do with what SpaceX is trying to do..

The difficult thing to do is deliver actual significant mass to ORBIT. And land with the same set of engines you vent up with. Every rocket firm out there can go straight up 100 km and come down again if they want to, and built a rocket specifically for it.

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