The entire world economy explained using cows
Heh. The sad part is how true it all is. Only one option produces wealth and prosperity, but humans seem determined to choose every other possible option instead, even though they all guarantee failure.
Year: 2015
Astronomers photograph an exoplanet
Cool image time! Astronomers have used the Gemini Telescope on Mauna Kea to take the clearest image yet of a Jupiter-sized gas giant orbiting another star 96 light years away.
Once the astronomers zeroed in on the star, they blocked its light and spotted 51 Eri b orbiting a little farther away from its parent star than Saturn does from the sun. The light from the planet is very faint — more than one million times fainter than its star – but GPI can see it clearly. Observations revealed that it is roughly twice the mass of Jupiter. Other directly imaged planets are five times the mass of Jupiter or more. In addition to being the lowest-mass planet ever imaged, it’s also the coldest — about 800 degrees Fahrenheit — and features the strongest atmospheric methane signal on record. Previous Jupiter-like exoplanets have shown only faint traces of methane, far different from the heavy methane atmospheres of the gas giants in our solar system.
All of these characteristics, the researchers say, point to a planet that is very much what models suggest Jupiter was like in its infancy.
The exoplanet is the bright spot near the bottom of the image.
Cassini’s last fly-by of Dionne on Monday
On Monday August 17 Cassini will make its last close fly-by of Saturn’s moon Dionne, dipping to within 295 miles of the surface.
During the flyby, Cassini’s cameras and spectrometers will get a high-resolution peek at Dione’s north pole at a resolution of only a few feet (or meters). In addition, Cassini’s Composite Infrared Spectrometer instrument will map areas on the icy moon that have unusual thermal anomalies — those regions are especially good at trapping heat. Meanwhile, the mission’s Cosmic Dust Analyzer continues its search for dust particles emitted from Dione.
The image of Dionne above is from a June 16, 2015 fly-by, The diagonal line at the top is Saturn’s rings.
After more than a decade, Cassini’s mission is in its final stages. When completed, we will have no way for decades to get close-up images of this gas giant, its spectacular rings, or its many very different moons.
Obamacare forces schools to cut back
Finding out what’s in it: Public school budgets continue to be squeezed by the cost of Obamacare.
They find they either have to cut employee hours, privatize some services, or eliminate health insurance entirely and pay the Obamacare fines. Otherwise, they can’t afford the costs.
This quote however illustrates the educational cost of Obamacare:
School officials say that it’s hard for students to adjust to having multiple part-time educators throughout the day. Chris Johnson, an administrator with the Penn Manor school district in Pennsylvania, told a publication there that, “If you start doing a half day with this person and then a half day with that person, those students don’t react well.”
Even as it bankrupts us financially, Obamacare is also bankrupting us socially. What a disaster. We desperately need to repeal it, as soon as possible.
The wild Martian terrain
This week’s image release from the high resolution camera on Mars Reconnaissance Orbiter illustrate well the wild and mysterious geology of the Martian surface. I include cropped sections from two images here, just to give you a taste. Go to the link to do your own exploring.
The image to the right is a cropped and scaled down version of the original image, so the details are not easily seen. Make sure you look at the original. The strange yardang ridges, all aligned alike, rise up out of a relatively smooth plain.
Yardangs are formed when a surface that is composed of materials of differing strengths (i.e., of both harder and softer materials) is shaped by the abrasive action of sand and dust carried by the wind. In this case, and given the proximity of the Apollonaris Patera volcanic center, we think that these wind-carved deposits are comprised of volcanic ash and pyroclastics that erupted from Apollonaris when it was last active in the not-too-distant geologic past. Over time, the softer materials (likely volcanic ash) were eroded away, leaving behind the harder materials in the form of elongated ridges that are parallel to the direction of the prevailing wind. The end result is a stunning, out-of-this-world display of yardangs, sculpted with the artistic chisel of the Martian wind.
That’s the theory, anyway. The actual geological process that formed these ridges is probably a lot more complicated.
The image below the fold illustrates the on-going surface activity on Mars.
» Read more
A look at Ted Cruz’s election strategy
The presidential election: While other candidates trash Rand Paul, Donald Trump, and their supporters, Cruz refuses to do so, taking the high road in the expectation that he will eventually win those supporters when Paul and Trump drop out of the campaign.
As Cruz is quoted in this different article,
“I would … note that an awful lot of Republicans, including other Republican candidates, have gone out of their way to smack Donald Trump with a stick. Now I think that’s just foolish,” he said. Asked why, Cruz paused and then replied, “Donald Trump had a rally in Phoenix, Ariz. [to which] between 10 and 20 thousand people came out. When you attack and vilify the people at that rally as crazies, it does nothing to help Republicans win in 2016. I’d like every single person at that rally to show up and vote in 2016, knock on doors with energy and passion, and turn this country around. If Washington politicians show contempt and condescension to those [voters,] that is a path to losing at the ballot box.”
Though I don’t post much about election campaigns, this does not mean I do not follow them closely. Most of what happens is childish drivel (such as last week’s debate and the big to-do between Trump and Megan Kelly), but if you look for real nuggets of information about the candidates you can find them. These two stories illustrate the cool-headed strength of Ted Cruz. His track record shows he is not afraid to fight, but it also appears he knows how to choose his fights well.
I have liked Scott Walker for the same reasons. In Wisconsin he was willing to fight, but kept a cool head and held back from fighting over petty issues. The problem for Walker now is that he has seemed too cool-headed during the campaign, unwilling to do anything that might offend anyone. This is not going to win elections. Nor is it going to change things even if he should win.
DARPA awards phase 2 space plane contracts
The competition heats up: The second phase contracts in the development of a reusable space plane have been awarded by DARPA.
DARPA has awarded $6.5 million each to three companies for developmental design work, including Boeing (in partnership with Blue Origin), Northrop Grumman (in partnership with Scaled Composites and Virgin Galactic), and Masten Space Science Systems (in partnership with XCOR Aerospace).
The requirements are that the plane fly 10 times in 10 days, reach Mach 10+, put a 3,000 to 5000 pound payload in orbit, and cost less than $5 million per flight. In this new phase, the companies are to deliver finalized designs by 2016, with prototype development to follow.
NASA considers using Bigelow module for deep space missions
The competition heats up: Rather than build something in-house for gobs of money and decades of work, NASA is considering using Bigelow Aerospace’s largest inflatable modules for its deep space missions.
What has happened is that NASA has signed a joint agreement with Bigelow to study the possibility of using Bigelow’s B330 module as a transport habitat on long flights. The agency really has no choice, as it doesn’t have the funding to develop the necessary large spacecraft for these missions, and Bigelow can provide them to it for much less.
This description of the background of Bigelow’s inflatable modules illustrates why NASA can’t build these itself:
The B330 evolved from the Genesis I and II modules that Bigelow Aerospace had launched into space. Those technology demonstrators were born out of the NASA project known as TransHab. The TransHab was an inflatable module designed for the ISS but was ultimately cancelled in 1999 due to budget constraints. The module would have provided a 4 level 27.5 feet (8.4 meter) diameter habitat for the astronauts.
After TransHab was cancelled, Bigelow worked with NASA on a technology transfer, giving Bigelow Aerospace exclusive rights to the technology. Using this technology, Bigelow designed, built and launched two technology demonstrators. They are still on orbit today. Genesis I was launched in 2006 with it’s sister ship launching in 2007. Both ships tested flight operations processes and on-board electronics and have performed above design specifications. [emphasis mine]
Unlike NASA, as a private company Bigelow was able to build this technology quickly and at a low cost. With the new agreement, the goal will be study the operation of a B330 in independent flight in low Earth orbit. Whether an actual B330 will be build and launched however is not yet clear.
David Gilmour of Pink Floyd – Shine On You Crazy Diamond
An evening pause: Hat tip Danae, who notes correctly, “Terrible lifestyle, terrible message, but they knew how to play.”
The Space Show modernization crowd-funding campaign
For more than a decade David Livingston has been producing and hosting The Space Show, the aerospace industry’s most important outlet for telling the public what is happening in space.
Now David is starting a crowd-funding campaign to finance a major update to The Space Show archives, in order to make them fully searchable and thus accessible to historians and researchers. As he notes,
Our archives as of this morning contain 2, 524 interview programs. These interviews tell the story of the space industry as many guests were there when it started, when we went to the Moon, and even before SpaceX was started. But as it stands, nobody can search our archives for information, program content, breaking news, etc. The closest one can come to a search is the GuestSearch tool on our current website, but searches are not interactive and about two-thirds of our programs have no key words so a search using the GuestSearch tool is not very useful Space Show archives are a treasure of information and history. By making them fully searchable and of archival quality, everyone benefits, even the casual Space Show listener.
As a space historian, I think David’s effort here is essential. The data hidden in the Space Show archives is invaluable, describing the beginning of the commercial space industry better than any other source. Making it searchable would make this history available to future generations that otherwise would never see it.
Check out the campaign as well as the Space Show support site and contribute. Not only can you help future space historians you will help keep the Space Show on the air.
Contract to build upgraded Vega rocket signed
The competition heats up: The European Space Agency today signed a contract to develop an upgraded version of its Vega rocket.
With respect to the VEGA configuration currently in operation, VEGA C aims to increase the load capacity of the orbital launcher up to 50%. Together with a further increase in operational flexibility, while maintaining its unrivalled orbital precision, it is expected to expand the capability to transport in the same flight a larger number of small satellites, in different orbital planes, or larger satellites. The new version of VEGA will be flight qualified in late 2018 for an entry into service as early as 2019. The group of countries which already participated in the development of VEGA, with Italy playing a major role with a 65% participation, welcomes now the entry of Germany.
I get the impression from this article that Vega is being used by ESA to spread the pork around, since to get Ariane 6 built they had to agree to not do so and give the work and control entirely to Airbus Safran. I thus wonder how competitive Vega will truly be.
Contract to build Ariane 6 signed
The competition heats up: Airbus Safran and the European Space Agency today signed a €2.4 billion contract to develop Ariane 6.
They want the first flight to take place as early as 2020.