propulsion
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Rocket Lab secretly launched its own satellite designed to go to the Moon
Rocket Lab recently made a successful return to flight and launched a client satellite from its Electron Rocket, but that’s not all that happened on the mission. The company also secretly launched its own satellite, called Photon, that could one day fly ambitious deep space missions.
Scientists make a lifelike robotic fish using multipurpose 'blood'
There's no question that robots have come a long way since their cold, clunky, cumbersome inception. Nowadays they're smart, agile and responsive -- but they're still missing the tactile, multipurpose elements that make living creatures flexible and autonomous. Until now. In a bid to make robots more lifelike, scientists have created a soft robotic lionfish and have pumped it full of life-giving "blood."
'Impossible' EM drive may actually be impossible after all
If something sounds too good to be true then it probably is, so goes the old saying. And unfortunately, it now seems this is also applicable to the "impossible" EM drive, first touted over a decade ago as a way to generate thrust using microwaves, thereby eliminating the need for fuel in deep space exploration. The initial research caused huge excitement, with scientists venturing it would be possible to travel from Earth to Mars in just a few weeks if the technology could be scaled up, but new tests suggest that's unlikely to happen because it doesn't appear to work at all.
World's first all-electric propulsion satellite begins operations
Boeing has announced that the first satellite using fully-electric propulsion has begun operating. Dubbed the ABS-3A, this 4,300-pound telecommunications satellite will provide C- and Ku-band service to South America, the Middle East and Africa. Unlike, well most every other satellite in orbit, the ABS-3A doesn't rely on tanks of inert gas for propulsion and orbit maintenance. Instead it relies on the Xenon Ion Propulsion System (XIPS) which employs a magnetic field to push ions around and generate thrust. The satellite is expected to use just 11 pounds of Xenon annually over the course of its 15 year operational life span -- that's a tenth the amount of propellent that a conventional satellite would require.
Boeing's SUGAR Freeze is a cool way to power a plane
No, not the sensation you get when you have gulped your ice cream too fast. SUGAR Freeze is the a new propulsion concept developed by Boeing that aims to revolutionize air travel. Standing for Subsonic Ultra Green Aircraft Research, the NASA-commissioned project (codenamed "N+4") looks at immature technologies in the hope of kickstarting research for the future. It's reportedly 60 percent more efficient than the equivalent Boeing 737-800, thanks to a very experimental propulsion system. Cryogenically stored liquified natural gas (hence "Freeze") is burned in a pair of unducted fan engines while also powering a solid-oxide fuel cell as an aft-thruster. With LNG projected to remain abundant, more environmentally friendly and cheap well into the century, it makes an ideal substitute to current aviation fuel, which is none of those things. Currently it's far too unsafe a design to contemplate building, and there are concerns about the natural gas production process, but hopes remain that the kinks will be ironed out well before the 2045 deadline.
Purdue University grad students give NASA lander tech a boost, do it for the experience
We just learned of NASA's end-of-decade plans to rocket astronauts into deep space for exploratory missions to Mars and beyond. Now, we're getting a peek at the Purdue University-designed lander tech that'll plant our space fleet's feet firmly on terra incognita. What originally started as a senior research project for grad students Thomas Feldman and Andrew Rettenmaier, has now blossomed into a joint research endeavor for the federal space agency's Project Morpheus -- a think tank for trips to heretofore unexplored celestial bodies. The in-development propulsion tech, now undergoing testing at the university's Maurice J. Zucrow Laboratories, is required to "meet stringent design and performance" standards, but most importantly, needs to lift the fuel-depleted lander post-descent. You'd think scientific work of this magnitude would come with a hefty paycheck, but the student team behind it all's just doing it for the hands-on knowledge. Sure beats your summer internship at that magazine, huh?
NASA and Ad Astra team up to test VASIMR plasma rocket in space
Plasma propulsion may very well be our ticket to visit those little green men on Mars, which is why NASA is becoming besties with Ad Astra, makers of the VASIMR VX-200 plasma rocket. After successful terrestrial testing, the next step is to try out a VF-200 flight model in space -- and a new agreement gives NASA engineers access to VASIMR while letting Ad Astra leverage NASA's spacecraft expertise to get it into orbit. The plasma rocket was assumed to be destined for use on the International Space Station because it requires far less fuel than conventional boosters -- making it better suited than the propellant-hungry thrusters keeping the station in orbit today -- and can take advantage of the ISS's considerable electrical power (250kW) to fully test VASIMR's 200kW output. Plasma rockets produce sustained thrust, as opposed to the quick bursts of its chemical cousin, which makes it the preferred means of propulsion for space travel as well. NASA hasn't fully committed to either use -- but if Marvin and his fellow Red Planet denizens know what's good for them, they'll be watching VASIMR's development with great interest.
NASA considering beamed energy propulsion for space launches
Truth be told, it probably does take a rocket scientist to truly understand the scope of what NASA is currently investigating, but the gist of it isn't hard to grok. America's premiere space agency is purportedly examining the possibility of using beamed energy propulsion to launch spacecraft into orbit, and while we've seen objects lofted by mere beams before, using a laser to leave the atmosphere is a whole 'nother ballgame. The reasons are fairly obvious: a laser-based propulsion system would effectively nix the chance of an explosive chemical reaction taking place at launch, and it would "make possible a reusable single-stage rocket that has two to five times more payload space than conventional rockets, which would cut the cost of sending payloads into low-Earth orbit." We're told that the study should be concluded by March, but only heaven knows how long it'll be before we see any of this black magic used to launch rockets. Sadly, we can't expect any Moon missions to rely on lasers for at least 50 or so years, but we're guessing that timeline could be shortened dramatically if Sir Richard Branson were to get involved. [Image courtesy of Jordin Kare]
Japan sends a ribbon into space, asks it to test the magnetic currents
Tether propulsion seems to be the OLED of the spacefaring world, carrying as it does a lot of promise but seemingly never ready for the big time. The fundamental premise is as simple as it is appealing -- a long strip of metal stretched out in space can theoretically exploit the Earth's magnetic field to maneuver itself without expending any fuel of its own. This is done by sucking up ionospheric electrons at one end and, predictably enough, spitting them out at the other, allowing current to flow through the tether. Japan's aerospace agency has recently shot off a testing vehicle for just this theory, a 300 meter-long, 2.5cm-wide ribbon, which has managed to successfully generate a current. No thrust-measuring equipment was on board and it's still very early days, but hey, there's at least the chance that one day satellites will all sprout long, elegant tails to power their way through the sky... and into our private lives.
EVE Online developer explains major new feature: Tech III
The dev blog many EVE Online players have been waiting for was published today. Tech III ships have been the subject of a great deal of excitement and no small amount of trepidation from the game's players. EVE developer CCP Nozh introduces the playerbase to "the dark delights of Tech 3 ships" in his dev blog "Strategic Cruisers: A New Breed." This moniker "Strategic Cruisers" is a fitting one, as they certainly are a new breed of ship, and one that requires some explanation. Nozh writes, "The elation of happening upon a unique fit, some fresh and clever setup, has always been a very appealing aspect of EVE. One of our primary goals for the Tech 3 ships was to bring this customization to a whole new level. The new ships are a fundamental departure from the tried and tested, offering such unparalleled customization that discussing them on the same terms as previous ships belies their true extent -- we're talking full-fledged, independent systems within the system. A little bit scary, really."
IDL Motors' linear propulsion system gets demonstrated
We'll be honest with you -- IDL Motors' installation at Toy Fair 2008 was a bit short on details, but we're certainly digging what we saw. Apparently, both the Bullet Train & Cars and Z-drive creations were on display, and while the former used linear propulsion to whiz magnet-laden "cars" around a track, the latter enabled similar vehicles to climb steeper slopes than their previous prototypes. Still, we know what you're here for, so click on through to take a peek at the video.[Via MAKE]
New jet-pack patent propels with water
Sure, we all love jet packs. Who doesn't enjoy strapping a gigantic tube of highly flammable fuel to their back and igniting it so it can propel you hundreds of feet into the air? Well, an inventor named Raymond Li has a different idea, one which he's just managed to patent: a water-propelled rocket pack. The new design would use a system of conduits which route pressure to independently pivoting thrust nozzles, while the actual engine, pump, and dangerous gases remain floating on water in a self-contained, buoyant package. It's somewhat unclear if you'll be able to rocket over land using this device (the fact that the engine is water-based would suggest no), though it is an interesting development for jet-pack enthusiasts.[Via Wired]
NC State researchers devise new ways to invade your bloodstream
While schools in the ACC are certainly making noise on the hardwood, it seems that the Atlantic Coast Conference is also interested in shoving microbots all around your innards. Just days after a team from Georgia Tech envisioned a new internal method for monitoring blood pressure, research conducted at NC State is hoping to cram even more robotic creatures into deep, dark places within your body. A team led by Orlin Velev has discovered that "a simple electronic diode" could spark a new form of propulsion which could power robots and other diminutive devices from a distance. By exploiting "a phenomenon known as electro-osmosis," the diodes can push microscopic material through internal fluids "at speeds of several millimeters per second," which could allow cameras and medicines to reach critical locales that are presently isolated. Of course, there's still a good bit of work to be done, as the prototype device still has become substantially smaller before it will even fit in most of the tiny tubes within your skin, but it's looking more and more like we'll have nursebots shoving spinoffs of themselves into our beings before too long.[Via NewScientistTech]
Bae Institute crafts magical photonic laser thruster
Now that humans have shot themselves up into space, frolicked on the moon, and have their own space station just chillin' in the middle of the galaxy, what's really left to accomplish out there? How about cruising around at light speed? Apparently, a boastful group of scientists at the Bae Institute in Southern California feel that they're one step closer to achieving the impossible, as the "world's first photonic laser thruster" was purportedly demonstrated. Using a photonic laser and a sophisticated photon beam amplification system, Dr. Bae reportedly "demonstrated that photonic energy could generate amplified thrust between two spacecraft by bouncing photons many thousands of times between them." The Photonic Laser Thruster (PLT) was constructed with off-the-shelf parts and a bit of fairy dust, and it's said that this invention could eliminate the need for "other propellants" on a wide range of NASA spacecrafts, theoretically savings millions on energy costs and enabling longer missions. So while this may be an incredibly novel idea, the chances of this actually working outside of a laboratory seem relatively small, and make sure we're not the guinea pigs strapped into the first craft that utilizes this mystical method of launching, cool?[Via Wired]
SpineAssist robot tours spinal canal with camera in tow
While ridiculously small robots crawling around in our bodies seems quite painful (and in some cases, it is), a team headed by Moshe Shoham of Haifa's Technion is developing a smoother riding robot to cruise the friendly passageways of the spinal canal. Dubbed the SpineAssist, this low-powered microbot is being crafted to "aid surgeons in performing delicate spinal procedures" by propelling itself through the water-like cerebral spinal fluid and channeling live video / snapshots back to the doctors in charge. Researchers have already engineered the propulsion system, and describe the device as a "free-swimming endoscope" with two actuators and swimming tails that will lug a camera into the fragile depths. Shoham estimates that a few more years of work will be needed to up its payload capacity and shrink it to an appropriate size, but at least someone's working on taking the back aches out of surgery, eh?[Thanks, William]
