Jamey Johnson & Alison Krauss – Seven Spanish Angels
An evening pause: Performed live at a concert honoring Willie Nelson.
Hat tip Jeff Poplin.
Author: Robert Zimmerman
Criminal charges filed by Navy against commanders of collision ships
The Navy today announced that it is filing criminal charges against the commanding officers of the two ships that were involved in collisions earlier this year.
The commanders of the two guided-missile destroyers that were involved in fatal collisions with merchant ships in 2017 will face military criminal charges that include charges of dereliction of duty, hazarding a vessel and negligent homicide, after the two incidents that resulted in the death of 17 sailors total, USNI News has learned.
Cmdr. Bryce Benson, former commander of USS Fitzgerald (DDG-62), along with three Fitzgerald junior officers, face a mix charges that include dereliction of duty, hazarding a vessel and negligent homicide related to the June 18 collision between the ship and ACX Crystal that resulted in the death of seven sailors, according to a statement from the U.S. Navy provided to USNI News.
Cmdr. Alfredo J. Sanchez, former commander of USS John S. McCain (DDG-56), faces similar dereliction of duty, hazarding a vessel and negligent homicide charges for the Aug. 21 collision between the guided-missile destroyer and a chemical tanker off the coast of Singapore that resulted in the death of 10 sailors.
I don’t know whether the military trials will be public (they should be), but if so they will reveal some very interesting details about what was happening on these Navy ships that allowed these collisions to occur.
Trump administration withholds $65 million from UN PLO agency
The Trump administration today withheld $65 million of a $125 million payment from the UN agency that is supposed to provide aid to Palestinian refugees but has instead been repeatedly found to use it to help the PLO and Hamas in terrorist acts.
In a letter, the State Department notified the U.N. Relief and Works Agency that the U.S. is withholding $65 million of a planned $125 million funding installment. The letter also makes clear that additional U.S. donations will be contingent on major changes by UNRWA, which has been heavily criticized by Israel. “We would like to see some reforms be made,” said State Department spokeswoman Heather Nauert, adding that changes are needed to the way the agency operates and is funded. “This is not aimed at punishing anyone.”
The State Department said it was releasing the rest of the installment — $60 million — to prevent the agency from running out of cash by the end of the month and closing down. The U.S. is UNWRA’s largest donor, supplying nearly 30 percent of its budget. The agency focuses on providing health care, education and social services to Palestinians in the West Bank, Gaza Strip, Jordan, Syria and Lebanon.
Not surprisingly, the PLO is reacting like a five year old, throwing a tantrum, as if it deserves this money no matter what it does.
Mars rover update: January 16, 2018
Summary: Both rovers have moved little in the past month, Opportunity because it is in a good science location and because it must save energy during the winter and Curiosity because it is in a geological location so good the scientists appear to almost be going ga-ga over it.
Curiosity
For the overall context of Curiosity’s travels, see Pinpointing Curiosity’s location in Gale Crater.
In the month since my December 18 update, Curiosity has continued to head south rather than east as originally planned (as indicated by the dotted yellow line in the traverse map to the right). Moreover, the rover has not moved very much, because the science team has decided that there is just too much significant geology in this area on Vera Rubin Ridge, also part of a geological unit they have dubbed the Hematite Unit.
Right now the rover is located at an area they call “Region e,” one of the three patches I have also indicated on the image to the right. From the second update below:
This location is a slight depression with exposed fractured bedrock that appears more “blue” from orbit than the surrounding region. In addition, the orbital evidence and observations from the ground suggest that this location is similar to “Region 10” that we visited just last week, which was shown to have some pretty spectacular small-scale features that were of particular interest to many on the science team. As a result, the team was very excited to reach “Region e” and begin our scientific investigation!
The last few updates on the Curiosity mission update page indicate the excitement the geologists have for this site:
» Read more
Falcon Heavy static fire test delayed again
It appears that the first static fire test of the Falcon Heavy has been delayed again from today to later in the week.
There is no word on why the delay, but all indications suggest that they are going through the process step-by-step with great care. As they find things that need addressing they are addressing them, and that only when all issues are resolved will they go forward.
The known ice cliffs on Mars
Last week there was a big NASA story about the discovery of eight locations on Mars where the evidence strongly suggests that these spots have cliff faces with exposed layers of water ice.
The press release however did not provide an overview about where those eight locations were. Only two locations were given, one for a scarp in Milankovič Crater in the northern hemisphere, and one in an area called Promethei Terra, located in the remote cratered highlands in the southern high-mid-latitudes.
After much digging (and some assistance from John Batchelor) I was finally able to obtain the latitudes and longitudes of all 8 locations. All but the scarp in Milankovič Crater crater (shown by the white dot north of Olympus Mons) are located in the white rectangular box shown to the south and east of Hellas Basin, the area with Mars’ lowest elevation. This part of Mars is not well imaged with the high resolution camera on Mars Reconnaissance Orbiter (indicated by the fewer number of red squares in the image), mostly because it appears relatively boring from a distance. Nothing appears to be there for hundreds and hundreds of miles except craters, sand, and sand dunes..
The discovery of these scarps in this area however changes the picture. It suggests that cratered highlands that surround Hellas Basin, including those close to the planet’s equator, could contain similar buried layers of ice. More research is necessary to pin down more locations, especially those closer to the equator where conditions might be more hospitable for a colony.
Moreover, educated readers of Behind the Black have previously noted that because of Hellas Basin’s low elevation the air pressure there is thicker, and therefore the location has some advantages as a potential colony location. These ice scarps raise the value of Hellas Basin considerably, as they suggest that such layers could easily be exposed as you descend into Hellas Basin. If such layers are exposed on the northern flanks of the basin, they would be at latitudes of around 25 to 30 degrees south, a much more friendly latitude for settlement.
Detailed update on Falcon Heavy static fire test set for later today
Link here. The article has a lot of good information not only about the test but about the launchpad and how it will be used in the future.
One take-away that I came off with however came from the picture of the Falcon Heavy on the launchpad. It made me realize how far apart the two side stages sit from the core stages, as the rocket is now reconfigured. My impression of most strap-ons today is that they are placed very close to the core, and they generally have aerodynamic cones that slope away from the core, so that the air is directed away from the space between the stages. Falcon Heavy however has all that space, and the side strap-ons have rounded cones.
I wonder if this is one of the rocket’s most worrisome unknowns, as it travels through Max Q, the period shortly after launch when the stresses created from its speed and the atmosphere are the highest. As designed, a lot of atmosphere will travel between the stages. While this isn’t entirely unique (the shuttle had a somewhat comparable gaps between its various parts), I do wonder.
Jason Headley – It’s Not About The Nail
An evening pause: Hat tip Jim Mallamace, who wrote, “This video is maddening to a male. I’m afraid to show it to my wife.”
On the way home
Diane and I are about to board the airplane here in the Bahamas to return to the U.S. Twas an interesting and pleasant weekend.
Not surprisingly, the TSA were pigs as we left. It turns out that it is forbidden to carry from foreign countries a ham sandwich on the plane to eat. Either that, or they like to steal sandwiches from passengers for their own lunch.
As I said to the TSA agent, “Pigs. This is not the country I was born into.” She then tried to debate politics with me and I said, “No, please, let’s not.”
The real evil here is that the agent was upset that I was honest about having the sandwich. If I had lied and said we had no food with us, they wouldn’t have checked and all would have been fine. The whole setup was designed to make everyone dishonest and liars. If you were honest, you were punished.
Falcon Heavy static fire test delayed again
SpaceX yesterday re-scheduled the Falcon Heavy launchpad static fire engine test to Monday, with a window opening at 4 pm Eastern and lasting until 10 pm.
Comments at the link suggest that the software for the rocket’s hold down clamps required review. This theory however is unconfirmed.
Update: The test has now slipped to Tuesday.
A movie of Jupiter’s south polar region
Cool movie time! Using Juno images, a citizen scientist has created a short movie showing two complete rotations of Jupiter’s south polar regions. I have embedded the movie below the fold. It is definitely worth watching. As he notes,
Due to Jupiter’s low axial tilt we never see more than roughly one half of the area around the poles in sunlight at any given time. However, it is interesting to see what Jupiter’s polar regions would look like if things were different and a big area around the poles was illuminated. This rotation movie shows what Jupiter’s south polar region would look like near the time of southern summer solstice if Jupiter’s axial tilt was much greater than it is, i.e. comparable to Saturn’s axial tilt.
He also notes the puzzling fact that, though Jupiter and Saturn are both gas giants, unlike Saturn Jupiter does not have a vortex at its poles. In fact, he points out how none of Jupiter’s storms are centered at the pole. Why one gas giant should have such pole-centered vortexes while another does not is a big mystery that illustrates how very little we know about planetary formation and evolution.
The two rotations also do not show any changes in the storms, not because they aren’t changing but because the images used were taken over too short a time span to show this.
» Read more
China completes third launch in as many days
The competition heats up: China today completed its third launch in as many days, placing a remote sensing satellite into orbit.
It was also reported today that one of the strap-on boosters from the previous launch fell and exploded in a Chinese village, where towns-people were able to take videos of it burning on the ground.
The launch standings:
3 China
1 SpaceX
1 ULA
1 India
VSS Unity completes 7th glide test
Capitalism in space: Virgin Galactic’s Unity suborbital spaceship completed 7th glide test today.
I must admit that I am only reporting this because I feel obligated to. This was their first flight in five months, and they have still not done a powered flight. I cannot get excited about Virgin Galactic and SpaceshipTwo until I actually see them reach space, something they have still not accomplished after fourteen years of development.
Rocket Lab announces January launch window
Capitalism in space: Rocket Lab has announced that it will attempt the second test launch of its Electron rocket during a nine day launch window beginning on January 20.
Bad weather and technical issues prevented this launch in December. Meanwhile, Japan is also planning a test launch in January of its only smallsat rocket, the SS-520. The Japanese entry is a demo mission designed and built by that country’s space agency, while Rocket Lab is entirely private. Both however provide more evidence that 2018 will be a booming year (no pun intended) for rockets.
India and ULA complete first launches in 2018
The competition heats up: In what looks like the beginning of what might be the most active launch year in almost three decades, India and ULA today each successfully completed their first launches of 2018.
ULA’s Delta 4 rocket launched a U.S. reconnaissance satellite, while India’s PSLV rocket placed in orbit 31 satellites, 30 of which were smallsats. For India, this was their first launch since an August PSLV launch failed when the rocket fairing did not release.
Update: I just discovered that China launched its second rocket yesterday, placing it in a tie with U.S. for most launches and ahead of everyone else.
2 China
1 SpaceX
1 ULA
1 India
Justin Johnson -Crankin’ Up the 3-String Shovel Guitar
An evening pause: Hat tip Jeff Poplin.
Exposed mid-latitude ice deposits found on Mars
Scientists have discovered eight locations on Mars where underground ice appears to be exposed on cliff faces
The scarps directly expose bright glimpses into vast underground ice previously detected with spectrometers on NASA’s Mars Odyssey orbiter, with ground-penetrating radar instruments on MRO and on the European Space Agency’s Mars Express orbiter, and with observations of fresh impact craters that uncover subsurface ice. NASA sent the Phoenix lander to Mars in response to the Odyssey findings; in 2008, the Phoenix mission confirmed and analyzed the buried water ice at 68 degrees north latitude, about one-third of the way to the pole from the northernmost of the eight scarp sites.
The important thing about this discovery is that, though we have known for several years that water ice exists underground in the Martian mid-latitudes, this is the first time we have identified specific places there it is exposed and accessible.
Unfortunately, the press release does not provide the specific eight locations, except for the one image, which is located in the southern hemisphere in a region called Promethei Terra, far from areas that have been studied much more extensively. I will do some digging to see if I can identify the other seven locations.
January 10, 2018 Zimmerman/Batchelor podcast
Embedded below the fold in two parts.
» Read more
On the road
Posting today has been lacking because Diane and I have been in the air, flying to the Bahamas where I will be giving a lecture tomorrow on space exploration at Lyford Cay Resort. We will be returning on Monday. I should get some posting over the weekend, but only in the evening after enjoying the day.
Posted from Nassau, the Bahamas.
An illicit visit to two abandoned Soviet space shuttles
An evening pause: Hat tip John Harman. This video has been around for awhile, but I hadn’t ever actually watched it until now. What it shows is very cool, but sad in so many ways. As a government project the whole Soviet space shuttle program was generally a dead end waste of resources (as was our own shuttle). Yet, it was possibly one of Soviet Russia’s greatest technological achievements — which they have allowed to rot away in these abandoned hangers, rather than opening them up for their citizens to see and admire and learn from.