Google+

Two Candidates Chosen to go to Titan

Dragonfly is a dual-quadcopter lander that would take advantage of the environment on Titan to fly...
Dragonfly is a dual-quadcopter lander that would take advantage of the environment on Titan to fly to multiple locations(Credit: NASA)

NASA has ramped up its next phase of space exploration by green lighting further development of two unmanned mission concepts. Scheduled to launch sometime in the mid-2020s, the proposed missions include the Comet Astrobiology Exploration Sample Return (CAESAR) spacecraft, which is designed to bring back comet materials to Earth, and the Dragonfly dual quadcopter, which is designed to fly about in the atmosphere of Saturn’s largest moon, Titan. read more

Does Planet Nine Exist

It has been widely debated among the science community for years, but now Nasa claims that Planet Nine does exist.

The space agency highlights five different lines of evidence pointing to the existence of the mysterious world, and says that imagining that Planet Nine does not exist generates more problems than you solve.

Researchers are now using the Subaru Telescope in Hawaii in the hopes of finding Planet Nine, and hope that its detection will also shed light on its origin.

Scroll down for video

Nasa highlights five different lines of evidence pointing to the existence of the mysterious world, and says that imagining that Planet Nine does not exist generates more problems than you solve

read more

Dream Chaser Spacecraft

A test version of a spacecraft resembling a mini space shuttle was carried aloft over the Mojave Desert by a helicopter Wednesday in a precursor to a free flight in which it will be released to autonomously land on a runway as it would in a return from orbit.

Sierra Nevada Corp.’s Dream Chaser craft was lifted off the ground at 7:21 a.m., at NASA’s Armstrong Flight Research Center on Edwards Air Force Base, California, and was carried to the same altitude and flight conditions it will experience before release in a free flight.

A control team sent commands to the wingless vehicle and collected data before the helicopter brought it down at 9:02 a.m., the company said.

Scroll down for video   read more

Global Warming Science – It’s Settled – They Lied Again

by: the Common Constitutionalist

Scroll down for Audio Version

How many times would you put up with being cheated on in a relationship? How many times would you tolerate being lied to? Is it one and done? Or maybe 2 – 3 – a half a dozen?

Obviously, this is a loaded question. It would depend on a number of factors. Independence vs. interdependence – or maybe just how forgiving a person is. Maybe it’s a relationship of convenience – like the Clintons – more a business partnership than a personal, loving relationship.

But what if the relationship were between you and cause? A cause you felt so strongly for, people considered you “wedded” to it. A cause like…oh…I don’t know…Global Warming.

What if you were all-in on man caused global warming because, as experts have oft-repeated, the science of global warming is settled? But then you found out that the cause you’ve been wedded to is almost entirely a lie? What would you do? You just may have to reevaluate your loyalty. read more

Simulations Do Not the Climate Make

By: the Common Constitutionalist

You know, in a murder mystery, there’s always at least one dupe that is convinced that the killer just can’t be the killer. One person who wants to believe so badly, that the facts are just “inconvenient” – he just refuses to see the truth!

These are the kinds of people that the “Climate Change” snake oil merchants seek out and fund to the tune of billions of dollars. No matter what the facts are; no matter what the climate does, some Kool-Aid drinker will always “find” proof that it is caused by man, usually by running a computer simulation.

The latest proof of global warming, or Climate Change, or whatever, are the North and South Poles. One is losing sea ice, one is gaining sea ice, one is melting from the bottom up, the other growing.

See, the thing about the poles is that they are constantly shifting. The South Pole, Antarctica is growing, while the North Pole, the Arctic, is shrinking (I don’t buy it). In other words, the local “climates” are constantly changing. They never stay the same, from year-to-year.

There have always been and, as long as we’ve had the two pole landmasses, will always, be ebbs and flows, shrinkage and growth in the ice. It’s not dirt or rock – it’s frozen water – a little more susceptible to warming and cooling.

So as the Antarctic grows and the Arctic shrinks (and I’m not sure it is) our hyper controlling government only has to find Kool-Aid drinking “men of science”, like NASA scientist Walt Meier who simply state that growing Antarctic sea ice is less significant a measure than is declining Arctic sea ice, cause…you see…um…it’s harder to explain growing ice due to global warming, you know…so we’ll just claim it to be insignificant. read more

Great Lakes Frozen…It’s Global Warming For Sure

After several weeks of abnormally frigid temperatures, the Great Lakes are almost completely frozen over, and stunning photo released by NASA shows the extent of the deep freeze as seen from space.

The photo was taken by the space agency’s Aqua satellite on February 19, when 80.3 percent of the giant lakes were covered in ice, according to the National Oceanic and Atmospheric Administration’s Great Lakes Environmental Research Laboratory – and that’s after the lakes had thawed out a bit.

In early February, 88 percent of the behemoth lakes were frozen over for the first time since 1994. Typically, roughly 50 percent of the lakes are frozen over at their peak.

Frozen: For the first time since 1994, the Great Lakes are almost completely covered by ice

Scientists Stunned Over Latest Mars Mystery

Though the couple billion-dollar Curiosity rover seems to get all the attention on the red planet these days, it’s one of the veteran rovers on Mars that captured an event that is stunning scientists and space fans alike.

The crux of the issue surrounds these photos snapped by the rover Opportunity on two different missions.

sol3528 and sol3540

The image on the left was taken on the SOL3528 mission while the photo on the right, showing the new rock, was taken of the same area in the SOL3540 mission. (Images: NASA/JPL-CALTECH)

The rock perched on the ground in the right photo in the side-by-side comparison was not there before. read more

Ion Propulsion Rocket

Nasa’s advanced ion propulsion rocket engine has run continuously for over five and a half years, setting a new world record.

This makes it the longest test duration any kind of space propulsion system demonstration project ever.

The solar-electric propulsion thruster could be used in a wide range of science missions including intriguing journeys into deep space.

The thruster is part of the space agency’s Evolutionary Xenon Thruster (NEXT) project at its Glenn Research Center in Cleveland.

 
Nasa's advanced ion propulsion rocket engine could be used in a wide range of science missions including intriguing journeys into deep space
Nasa’s advanced ion propulsion rocket engine could be used for deep space science missons. It has been running continuously for over five and a half years to set a new record for the longest test duration of any space propulsion system demonstration

The project aims to develop a next-generation electric propulsion system, including power processing, propellant management and other components.

Despite setting a new record by operating for more than 48,000 hours, the long-running test will be shut down.

Michael J. Patterson, principal investigator for NEXT at Glenn, said: ‘We will voluntarily terminate this test at the end of this month, with the thruster fully operational.

‘Life and performance have exceeded the requirements for any anticipated science mission.’

The efficient engine is perfect for deep space missions. It is a type of solar-electric propulsion in which thruster systems use the electricity generated by the spacecraft’s solar panels to accelerate the xenon propellant to speeds of up to 90,000 mph.

This provides a dramatic improvement in performance compared to conventional chemical rocket engines.

 
The engine has been running for over 48,000 hours
The engine has been running for over 48,000 hours. It is a type of solar electric propulsion in which thruster systems use the electricity generated by the spacecraft’s solar panel to accelerate the xenon propellant to speeds of up to 90,000 mph. The thrust beam is pictured

HOW THE ROCKET WORKS

  • Nasa’s advanced ion propulsion system runs on the electricity generated by the spacecraft’s solar panels
  • It uses the power to accelerate xenon propellant to speeds of up to 90,000 mph
  • The engine consumed about 870 kilograms of xenon propellant dusting its 48,000 hour test
  • It is more efficient than conventional chemical rocket engines

During the endurance test, which was carried out in a high vacuum test chamber at Glenn Research Center, the engine consumed about 870 kilograms of xenon propellant.

While this sounds like a lot, it provides an amount of total impulse (a measure of the maximum momentum that an engine and fuel can move a vehicle) that would take more than 10,000 kilograms of conventional rocket propellant for the same use.

The test engine’s core ionization chamber was manufactured at Glenn Research Center, while the ion acceleration assembly was designed and built by Aerojet Rocketdyne in California.

Julie Van Kleeck, Aerojet Rocketdyne’s vice president for space advanced programs, said: ‘Nasa developed next generation high power solar electric propulsion systems will enhance our nation’s ability to perform future science and human exploration missions.’

The system could also be used to power Nasa’s Asteroid Initiative.

The imitative aims to find asteroids that are a potential threat to human populations on earth and potentially capture and redirect the most threatening asteroids.

 
 
The solar-electric propulsion thruster uses a magnetic field to generate thrust by accelerating xenon ions and is powered by solar panel
The solar-electric propulsion thruster uses a magnetic field to generate thrust by accelerating xenon ions and is powered by solar panels. While this type of engine cannot produce as much power as chemical rockets, it is perfect for deep space missions as it is more efficient

Attribution: Sarah Griffiths, Mail Online

NASA Makes Another Useless Global Warming Prediction

Junk Science: A new NASA study says global warming could “increase the risk for extreme rainfall and drought.” We’ve heard this sort of threat many times before and, no, there’s nothing to see here.

According to NASA: “Analysis of computer simulations from 14 climate models indicates wet regions of the world, will see increases in heavy precipitation because of warming resulting from projected increases in carbon dioxide levels. Arid land areas outside the tropics and many regions with moderate rainfall could become drier.”

How about that? Heavy rain in soggy regions and drought in the parched ones.

Pardon us if we don’t get too excited about this. If it happens, the world will deal with it. But there’s a good chance this forecast will end up like many of the other global-warming predictions of doom.

Who can forget that acclaimed 2007 film made by Al Gore, in which the former vice president and failed 2000 White House candidate said sea levels would rise by 20 feet “in the near future” due to man-made global warming? So, if we might employ today’s vernacular, how’s that working out for you, Al?

Not so good, he’d say if he were honest. The “near future” has come and gone, and the sea has not risen 20 feet, or 10 feet or even a single foot. No coastal city has become the new Atlantis and no beach resorts have been overrun by the ocean.

Years before Gore made his blustery prediction, the United Nations’ Intergovernmental Panel on Climate Change predicted that man-made warming would increase sea levels from 11.8 inches to 39.4 inches by 2100. Eleven years later, in 2001, it revised its prediction. The new range was 3.5 inches to 34.6 inches.

Another revision, this one in 2007, put the range between 7.1 inches and 23.2 inches, again by 2100.

Continue Reading

Space Station Blows Up

The orbital balloon: NASA tests blow-up space-craft

 

A prototype inflatable module is to be tested  aboard the International Space Station to give astronauts an extra bedroom, NASA has announced.

The inflatable module  can be compressed into a 7ft tube for delivery,  and is being heralded as a key component of future exploration and the  development of commercial space travel and research.

It is designed by Bigelow Aerospace, based in  Las Vegas, which has been awarded a $17.8  million (£11m) test  project for the inflatable room – and hopes to develop  space hotels and even planetary bases using the technology.

This artist's impressions shows the Bigelow inflatable space station that can be compressed into a 7-foot tube for delivery to the International Space Station. NASA is expected to install the module by 2015This artist’s impressions shows the Bigelow inflatable  space station that can be compressed into a 7-foot tube for delivery to the  International Space Station. NASA is expected to install the module by 2015

 

Bigelow Aerospace president Robert Bigelow, left, and NASA deputy administrator Lori Garver with a one third scale model of the inflatable room Bigelow Aerospace president Robert Bigelow, left, and  NASA deputy administrator Lori Garver with a one third scale model of the  inflatable room

Astronauts will test the ability of  the  bladder, known as the Bigelow Expandable Activity Module, or BEAM,  to withstand  heat, radiation, debris and other assaults.

Some adventurous scientists might  also try  sleeping in the spare room, which is the first piece of private property to be  blasted into space, NASA said.

Lori Garver, NASA’s deputy administrator,  said as she unveiled the contract award that the inflatable module concept is  simultaneously cutting edge technology and affordable.

‘This partnership agreement for the use of  expandable habitats represents a step forward in cutting-edge technology that  can allow humans to thrive in space safely and affordably, and heralds important  progress in U.S. commercial space innovation,’ she said.

‘The International Space Station is a unique  laboratory that enables important discoveries that benefit humanity and vastly  increase understanding of how humans can live and work in space for long  periods.’

Part of NASA’s interest in the inflatable  technology is prompted by its potential for deep space missions.

If the module proves durable during two years  at the space station, it could open the door to habitats on the moon and  missions to Mars, Nasa engineer Glen Miller said.

The agency chose Bigelow for the contract  because it was the only company working on inflatable technology, said NASA  deputy administrator Lori Garver.

An artist's rendering of Bigelow Aerospace's balloon-like module attached to the International Space StationAn artist’s rendering of Bigelow Aerospace’s  balloon-like module attached to the International Space Station

 

Founder and president Robert Bigelow, who  made his fortune in the hotel industry before getting into the space business in  1999, framed the gambit as an out-of-this-world property venture.

He hopes to sell his spare-tire habitats to  scientific companies and wealthy adventurers looking for space  hotels.

NASA is expected to install the 13ft  blimp-like module in a space station port by 2015.

Mr Bigelow plans to begin selling stand-alone  space homes the next year.

The new technology provides three times as  much room as the existing aluminium models, and is also easier and less costly  to build, Mr Miller said.

Artist renderings of the module resemble a  tin-foil clown nose grafted on to the main station. It is hardly big enough to  be called a room.

Mr Miller described it as a large closet with  padded white walls and gear and gizmos strung from two central beams.

Attribution: Lewis Smith and Mark Prigg