Tag: plane (page 2 of 17)

Concorde Comeback? Two New Jets Plan to Take Air Passengers Supersonic Again

March 14, 2015 / / 0 Comments




Concorde Comeback? Two New Jets Plan to Take Air Passengers Supersonic Again
Lockheed Martin and NASA’s N+2 jet could cut cross-country flight times in half. (Photo: Lockheed Martin)



Excerpt from yahoo.com

Lockheed Martin and NASA’s N+2 jet could cut cross-country flight times in half. New York to Los Angeles in just over two hours? Passenger jets that fly faster than the speed of sound without that annoying sonic boom?  


That could become reality thanks to two projects that aim to bring supersonic planes back to commercial air travel.  Lockheed Martin is working with NASA on a design called the N+2, an 80-passenger jet capable of cruising at Mach 1.7 (1.7 times the speed of sound). 

But what about that loud sonic boom you get when an airplane exceeds the sound barrier? Lockheed Martin and NASA are working hard to lower the boom, so to speak. They say their proposed new jet will be 100 times quieter than the Concorde, the supersonic passenger jets that flew transatlantic routes from 1969 until they were grounded in 2003.

image
The supersonic Concorde flew from 1969 to 2003. (Photo: AP)


A quieter jet would allow the N+2 to fly at supersonic speeds on cross-country routes as the FAA, concerned about sonic booms going off over sleepy U.S. suburbs, currently bans civilian planes from going all “Danger Zone” in American airspace. Lockheed Martin says their new jet would cut cross-country flight times in half.  Related: Race for the First Windowless Plane Heats Up  A rival supersonic jet development project is underway in Reno, Nevada, where European aircraft maker Airbus is working with American firm Aerion on a new, fuel-efficient plane for business clients. The 12-passenger Aerion AS2 will fly at 1,217 mph (which is almost as fast as the Concorde, which flew at 1,350 mph). That would take you from New York to London in three hours and from Los Angeles to Tokyo in six.  

Since the AS2 would do most of its flying over oceans, its designers aren’t as concerned with loud sonic booms. The AS2’s big innovation is fuel efficiency, with new wings that are said to reduce drag by 20 percent.  The makers of the AS2 plan to deliver their first plane in 2022 while Lockheed Martin hopes to have the N+2 flying in 2025.  

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The Universe within 50,000 Light Years

March 11, 2015 / / 0 Comments

This map shows the full extent of the Milky Way galaxy - a spiral galaxy of at least two hundred billion stars. Our Sun is buried deep within the Orion Arm about 26 000 light years from the centre. Towards the centre of the Galaxy the stars are ...

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Milky Way Galaxy May Be 50 Percent Bigger Than We Thought

March 11, 2015 / / 0 Comments

 Excerpt from cbsnews.com Rings of stars thought to surround the Milky Way are actually part of it, according to new research, meaning the galaxy is bigger than previously believed.The findings extend the known width of the Milk...

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Recent Disappearances & Strangeness in the Bermuda Triangle

March 1, 2015 / / 0 Comments

Excerpt from paranormal.lovetoknow.com By Michelle Radcliff The Bermuda Triangle is an area of mostly open ocean located between Bermuda, Miami, Florida and San Juan, Puerto Rico. The unexplained disappearances of hundreds of ships and air...

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Earth’s Moon May Not Be Critical to Life Afterall

February 19, 2015 / / 0 Comments




Excerpt from space.com

 The moon has long been viewed as a crucial component in creating an environment suitable for the evolution of complex life on Earth, but a number of scientific results in recent years have shown that perhaps our planet doesn't need the moon as much as we have thought.

In 1993, French astronomer Jacques Laskar ran a series of calculations indicating that the gravity of the moon is vital to stabilizing the tilt of our planet. Earth's obliquity, as this tilt is technically known as, has huge repercussions for climate. Laskar argued that should Earth's obliquity wander over hundreds of thousands of years, it would cause environmental chaos by creating a climate too variable for complex life to develop in relative peace.
So his argument goes, we should feel remarkably lucky to have such a large moon on our doorstep, as no other terrestrial planet in our solar system has such a moon. Mars' two satellites, Phobos and Deimos, are tiny, captured asteroids that have little known effect on the Red Planet. Consequently, Mars' tilt wobbles chaotically over timescales of millions of years, with evidence for swings in its rotational axis at least as large as 45 degrees. 


The stroke of good fortune that led to Earth possessing an unlikely moon, specifically the collision 4.5 billion years ago between Earth and a Mars-sized proto-planet that produced the debris from which our Moon formed, has become one of the central tenets of the 'Rare Earth' hypothesis. Famously promoted by Peter Ward and Don Brownlee, it argues that planets where everything is just right for complex life are exceedingly rare.

New findings, however, are tearing up the old rule book. In 2011, a trio of scientists — Jack Lissauer of NASA Ames Research Center, Jason Barnes of the University of Idaho and John Chambers of the Carnegie Institution for Science — published results from new simulations describing what Earth's obliquity would be like without the moon. What they found was surprising.

"We were looking into how obliquity might vary for all sorts of planetary systems," says Lissauer. "To test our code we began with integrations following the obliquity of Mars and found similar results to other people. But when we did the obliquity of Earth we found the variations were much smaller than expected — nowhere near as extreme as previous calculations suggested they would be."
Lissauer's team found that without the moon, Earth's rotational axis would only wobble by 10 degrees more than its present day angle of 23.5 degrees. The reason for such vastly different results to those attained by Jacques Laskar is pure computing power. Today's computers are much faster and capable of more accurate modeling with far more data than computers of the 1990s.

Lissauer and his colleagues also found that if Earth were spinning fast, with one day lasting less than 10 hours, or rotating retrograde (i.e. backwards so that the sun rose in the West and set in the East), then Earth stabilized itself thanks to the gravitational resonances with other planets, most notably giant Jupiter. There would be no need for a large moon. 

Earth's rotation has not always been as leisurely as the current 24 hour spin-rate. Following the impact that formed the moon, Earth was spinning once every four or five hours, but it has since gradually slowed by the moon's presence. As for the length of Earth's day prior to the moon-forming impact, nobody really knows, but some models of the impact developed by Robin Canup of the Southwest Research Institute, in Boulder, Colorado, suggest that Earth could have been rotating fast, or even retrograde, prior to the collision.

Tilted Orbits
Planets with inclined orbits could find that their increased obliquity is beneficial to their long-term climate – as long as they do not have a large moon.


"Collisions in the epoch during which Earth was formed determined its initial rotation," says Lissauer. "For rocky planets, some of the models say most of them will be prograde, but others say comparable numbers of planets will be prograde and retrograde. Certainly, retrograde worlds are not expected to be rare."

The upshot of Lissauer's findings is that the presence of a moon is not the be all and end all as once thought, and a terrestrial planet can exist without a large moon and still retain its habitability. Indeed, it is possible to imagine some circumstances where having a large moon would actually be pretty bad for life.

Rory Barnes, of the University of Washington, has also tackled the problem of obliquity, but from a different perspective. Planets on the edge of habitable zones exist in a precarious position, far enough away from their star that, without a thick, insulating atmosphere, they freeze over, just like Mars. Barnes and his colleagues including John Armstrong of Weber State University, realized that torques from other nearby worlds could cause a planet's inclination to the ecliptic plane to vary. This in turn would result in a change of obliquity; the greater the inclination, the greater the obliquity to the Sun. Barnes and Armstrong saw that this could be a good thing for planets on the edges of habitable zones, allowing heat to be distributed evenly over geological timescales and preventing "Snowball Earth" scenarios. They called these worlds "tilt-a-worlds," but the presence of a large moon would counteract this beneficial obliquity change.

"I think one of the most important points from our tilt-a-world paper is that at the outer edge of the habitable zone, having a large moon is bad, there's no other way to look at it," says Barnes. "If you have a large moon that stabilizes the obliquity then you have a tendency to completely freeze over."

Barnes is impressed with the work of Lissauer's team.
"I think it is a well done study," he says. "It suggests that Earth does not need the moon to have a relatively stable climate. I don't think there would be any dire consequences to not having a moon."

Mars' Changing Tilt
The effects of changing obliquity on Mars’ climate. Mars’ current 25-degree tilt is seen at top left. At top right is a Mars that has a high obliquity, leading to ice gather at its equator while the poles point sunwards. At bottom is Mars with low obliquity, which sees its polar caps grow in size.


Of course, the moon does have a hand in other factors important to life besides planetary obliquity. Tidal pools may have been the point of origin of life on Earth. Although the moon produces the largest tides, the sun also influences tides, so the lack of a large moon is not necessarily a stumbling block. Some animals have also evolved a life cycle based on the cycle of the moon, but that's more happenstance than an essential component for life.

"Those are just minor things," says Lissauer.

Without the absolute need for a moon, astrobiologists seeking life and habitable worlds elsewhere face new opportunities. Maybe Earth, with its giant moon, is actually the oddball amongst habitable planets. Rory Barnes certainly doesn't think we need it.
"It will be a step forward to see the myth that a habitable planet needs a large moon dispelled," he says, to which Lissauer agrees.
Earth without its moon might therefore remain habitable, but we should still cherish its friendly presence. After all, would Beethoven have written the Moonlight Sonata without it?

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Mysterious Galaxy X Found Finally? Dark Matter Hunters Would Like To Believe So

February 17, 2015 / / 0 Comments

Excerpt from techtimes.comAstronomers have long suspected strange ripples in hydrogen gas in the disk of our Milky Way galaxy are caused by the gravity of an unseen dwarf galaxy dominated by dark matter -- and now they think they've found this "Gal...

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How to See the Ghostly Zodiacal Light of the Night Sky

February 8, 2015 / / 0 Comments

Excerpt from space.com Over the next two weeks, you have an excellent chance to spot one of the most rarely observed objects in the sky, the zodiacal light. The zodiacal light takes its name from the ancient band of 12 constellations through which the...

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Is Cancer a Gift and Not a Curse? Greg Giles

January 31, 2015 / / 0 Comments

We all, thankfully, have to leave this world and return home eventually, one day, when it is time. This is an inevitable fact of our journey here. With this in mind, can you think of any other way to leave here that allows a soul to look back and refle...

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Taiwan Conference Report / Solar System Situation Update

January 29, 2015 / / 0 Comments

Taiwan conference was a huge success. Because Taiwan is one of the main centers of the positive Dragon forces, it could grow a very strong Lightworker and Lightwarrior community. The conference took place very close to the location where Taiwanese Drag...

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With innovators from around the globe digging in, public moon travel may be only 20 years away

January 26, 2015 / / 0 Comments



moon
Image Credit: hkeita/Shutterstock


Excerpt from  venturebeat.com
By Vivek Wadhwa

Five teams competing for the $30 million Google Lunar XPRIZE have just been awarded a combined $5.25 million for meeting significant milestones in developing a robot that can safely land on the surface of the moon, travel 500 meters over the lunar surface, and send mooncasts back to the Earth. A tiny startup from India, Team Indus, with no experience in robotics or space flight just won $1 million of this prize. It stood head to head with companies that had been funded by billionaires, had received the assistance of NASA, and had the support of leading universities.
The good news is that governments no longer have a monopoly on space exploration. In two or three decades, we will have entrepreneurs taking us on private spaceflights to the moon. That is what has become possible.

What has changed since the days of the Apollo moon landings is that the cost of building technologies has dropped exponentially. What cost billions of dollars then costs millions now, and sometimes even less. Our smartphones have computers that are more powerful than the Cray supercomputers of yesteryear — which had strict export controls and cost tens of millions of dollars. We carry high-definition cameras in our pockets that are more powerful than those on NASA spacecraft. The cameras in the Mars Curiosity Rover, for example, have a resolution of 2 megapixels with 8GB of flash memory, the same as our clunky first-generation iPhones. The Apollo Guidance Computer, which took humans to the moon in 1966, had a 2.048 MHz processor — slower than those you find in calculators and musical greeting cards.

The same technologies as are available in the United States and Europe are available worldwide. Innovation has globalized.
I met Team Indus while I was in Mumbai to speak at INK last November. When they told me they were competing for the Google Lunar XPRIZE. I didn’t take them seriously because I had seen their counterpart in Silicon Valley, Moon Express, which has the support of tech moguls such as Naveen Jain. How could a scrawny little startup in Bangalore take on Naveen Jain, former NASA engineer Bob Richards, and NASA itself, I thought. The Moon Express team is a force of nature, has the advantage of being on the NASA Ames Research campus, and has been given R&D worth billions of dollars by NASA.

Team Indus was also up against Astrobotic, which is a spinoff from the Carnegie Mellon University Robotics Institute, and Israel-based SpaceIL, which has the backing of the country’s top research institutes.

The company’s win blew my mind. Even though the subject of my INK talk was how Indian entrepreneurs could help change the world, I didn’t think it was already happening.

(See my Jan. 1 story on the Indian tech scene and watch this talk to learn more: Why India shouldn’t be succeeding but is.)

The Bangalore-based startup was founded by former I.T. executive Rahul Narayan and four of his friends: an Air Force pilot, a marketing executive, an investment banker, and an aerospace engineer. None of the team had experience in building spacecraft or robots, yet they were able to build technology that could navigate to the moon.

Narayan says he expects completion of his space mission to cost around $30 million. Moon Express chief executive Bob Richards estimates $50 million. These numbers are higher than the $20 million prize that they hope to win. But both see far greater opportunities: They hope to be pioneers in what could be a trillion-dollar industry. Richards is looking to mine the moon for minerals and bring them back to Earth. Each payload could be worth billions.

The Google Lunar XPRIZE has 26 teams competing from around the world. Collectively, they will spend in the hundreds of millions of dollars on their efforts. For them, it is not all about winning the contest; many of the losers will still commercialize their space technologies or put their knowledge to use in other fields. This is the power of such competitions. They lead entrants to spend multiples of the offered purse on innovative solutions. And they motivate people outside the industry, such as Narayan, to enter it with out-of-the-box thinking.

Innovation prizes are not new. In fact, a number of celebrated historical feats were made possible, in part, by the desire to win these prizes. In the 1920s, New York hotel owner Raymond Orteig offered a $25,000 prize to the first person to fly non-stop between New York and Paris. Several unsuccessful attempts were made before an American airmail pilot named Charles Lindbergh won the competition in 1927 with his plane, The Spirit of St. Louis. 
Lindbergh’s achievement made him a national hero and a global celebrity. And it sparked the interest and investment that led to the modern aviation industry.

That is what I expect will come of the Lunar XPRIZE. And that is why I am looking forward to booking my round-trip ticket to the moon one summer in the 2030s.

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Three Earth-like planets sighted around nearby star

January 17, 2015 / / 0 Comments

This artistic impression shows NASA's planet-hunting Kepler spacecraft operating in a new mission profile called K2. By analyzing data captured by the Kepler spacecraft, a UA-led team of researchers has discovered three new Earth-size planets orbiti...

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Pair of Dwarf Planets May Lurk Beyond Pluto in Our Solar System

January 16, 2015 / / 0 Comments

At least two unknown dwarf planets may be lurking beyond Pluto, orbiting around the Sun in our own solar system just waiting to be discovered, according to a new study. (Photo : NASA/JPL-Caltech) Excerpt from natureworldnews.comAt least...

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The Kinross Air Force Base Incident ~ Did a jet disappear while chasing a UFO?

January 16, 2015 / / 0 Comments


A Northrop F-89C Scorpion, like the one flown by Moncla and Wilson. (credit: Flight Collection)


Excerpt from ufoevidence.org
On the evening of 23 November 1953, an Air Force radar controller became alerted to an "unidentified target" over Lake Superior, and an F-89C Scorpion jet was scrambled from Kinross AFB. Radar controllers watched as the F-89 closed in on the UFO, and then sat stunned in amazement as the two blips merged on the screen, and the UFO left. The F-89 and it’s two man crew, pilot Felix Moncla and radar operator Robert Wilson, were never found, even after a thorough search of the area.
Press article, regarding the incident, in the Wisconsin State Journal (Madison, WI), Nov. 25, 1953.

1st Lt. Felix E. "Gene" Moncla, Jr., pilot of the F89C Scorpion jet. Moncla was accompanied by radar operator Robert Wilson in the rear seat.

"The Disappearance of Lt. Felix Moncla"

The channel that connects Lake Superior with the other Great Lakes flows through the Soo Locks near Saulte Ste. Marie, Michigan. On one side of the channel is the U.S., and on the other side is Canada. The fact that this area is on a U.S. national border makes it a restricted airspace. As such, it was monitored by the Air Defense Command in 1953.

On the evening of 23 November 1953, an Air Defense Command Ground Intercept radar controller at Truax AFB became alerted to an "unidentified target" over Soo Locks. He sounded the alert, and an F-89C Scorpion jet was scrambled from nearby Kinross Field. The jet was piloted by 1st Lieutenant Felix Moncla, Jr., with 2nd Lieutenant Robert Wilson in the rear seat as radar operator.

Ground Control vectored the jet toward the target, noting that the target changed course as the F-89 approached it at over 500 mph. Lt. Wilson had problems tracking the target on his onboard radar, so ground control continued to direct the jet to the target. For thirty minutes, the jet pursued the radar blip and began to close the gap as the UFO accelerated out over Lake Superior.

As Ground Control watched, the gap between the two blips on the radar screen grew smaller and smaller until the two blips became one blip. Ground Control thought that Moncla had flown over the target and that the two blips would separate again as he moved past it.

That didn't happen. Suddenly, the single blip flashed off the screen and the radar screen was clear of any return at all.

Frantically, Ground Control tried to contact the F-89 by radio. There was no response. Marking the last radar position, Ground Control dispatched an emergency message to Search and Rescue. That last sighting was about seventy miles off Keweenaw Point in upper Michigan, at an altitude of 8,000 feet, approximately 160 miles northwest of Soo Locks.

After an all night air/sea rescue search, not a trace of the plane or the men was ever found. No debris, no oil slick, nothing was ever found.

Officials at Norton Air Force Base Flying Safety Division issued a statement that "the pilot probably suffered from vertigo and crashed into the lake." However, this was merely speculation and was based on hearsay reports that Moncla was prone to vertigo.

The Air Force explained the unknown radar target at first as a Canadian DC-3, then later as a RCAF jet. Canadian officials responded that there were no Canadian aircraft in the airspace over the lake at any time during the chase. The Air Force finally stated that the F-89 had exploded at high altitude, ignoring the fact that this would have left a lot of debris on the lake surface.

NICAP investigators found that mentions of Moncla's mission - chasing an unidentified target - had been obliterated from official records. Project Bluebook files simply listed the case as an "accident."

Off the record, those that were present in the Ground Control radar room that day have expressed other opinions. They think that whatever the F-89 was chasing directly caused the disappearance of the jet...

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