Gabriella Quevedo – Blackbird
An evening pause: This evening pause is partly an experiment. It is embedded not from youtube but from real.video. I would appreciate comments, problems, etc.
Year: 2018
Oblique mosiac of bright spot on Ceres
Cool image time! With the Dawn spacecraft now swooping with 22 miles of the surface of Ceres every 27 hours, the science team has assembled a spectacular oblique image of Cerealia Facula, one of the dwarf planet’s bright spots thought to be brine deposits that at some point erupted up from below the surface.
The image on the right, reduced in resolution to show here, shows that mosaic. If you click on the image you can see the full resolution version. From the image webpage:
This mosaic of Cerealia Facula combines images obtained from altitudes as low as 22 miles (35 km) above Ceres’ surface. The mosaic is overlain on a topography model based on images obtained during Dawn’s low altitude mapping orbit (240 miles or 385 km altitude). No vertical exaggeration was applied.
There are a lot of intriguing details in the full resolution image. I have highlighted one feature, indicated by the white box and shown in full resolution below.
» Read more
EXOS to test fly reusable suborbital rocket in New Mexico
Capitalism in space: EXOS Aerospace has chosen Spaceport America in New Mexico as the location where it will test fly its reusable suborbital rocket dubbed SARGE.
EXOS has completed the design, test and build; has received its FAA launch license and completed the final integration and test hovering for the rocket. A successful test flight is needed to solidify the company’s plans to use the technology as the basis for a planned reusable Orbital class vehicle, the company said in a pres release issued Tuesday.
“We are excited to enter into the testing phase of our SARGE platform at Spaceport America, and even more excited to reveal our plans for our Jaguar Reusable (first stage) LEO launcher,” EXOS COO John Quinn said in a prepared statement. “We look forward to enabling space research, manufacturing and educational opportunity for the world by providing frequent suborbital flights that provide fast and affordable access to space.”
Spaceport American CEO Dan Hicks said a successful test flight could lead to further testing and development at the spaceport.
EXOS is another one of the host of new smallsat rocket companies vying for expected large launch needs in the 2020s. For Spaceport America, a state-run spaceport that was built for Virgin Galactic and its hyped surge in space tourism that never happened and thus has seen practically no activity for the past decade, this announcement is helpful in its effort to attract other launch business.
The Kempters – The Orange Blossom Special
An evening pause: What makes this fun is that the whole front row of fiddlers is actually 14-year-old Chris Kempter, competing against himself for top spot on the band.
Hat tip Jim Mallamace.
A strange bulge on Mars
Cool image time! The image on the right is not the cool image, but a context image of 59-mile-wide Pollack Crater, located slightly south of the Martian equator in the planet’s southern cratered highlands. What makes this crater intriguing to planetary scientists, and has prompted them to take many images over the decades, is the bulge in the southwest part of the crater’s floor. You don’t normally see a rise off-center like this inside craters. If there were any peaks, you’d expect them to be in the center, formed during the impact, when the crater floor melts and acts more like water in a pond when you drop a pebble into it, forming ripples with an uplifting drop in the dead center.
It therefore isn’t surprising that planetary scientists have taken a lot of pictures of this bulge, going back to the Mariner 9 orbiter in 1972, which first discovered it. Scientists then dubbed it “White Rock” because in the first black & white images it looked much brighter than the surrounding terrain. Later color images revealed that it is actually somewhat reddish in color, not white. As noted at this Mars Global Surveyor webpage,
» Read more
Man beaten by antifa thugs for carrying American flag
They’re coming for you next: A man who was attacked and beaten by antifa thugs for carrying an American flag during a Portland demonstration is actually a Democrat and a Bernie Sanders supporter who was at the demonstration to show that even liberals can be patriotic Americans.
In addition to the open embrace of violence exhibited by the Antifa member, the other problem for the group, The Oregonian underscores, is that Welch was not some Proud Boy or Patriot Prayer fan, he was “one of hundreds of progressive Portlanders who had turned out to oppose the right-wing rally held at the Tom McCall Waterfront Park.”
“I didn’t come as a part of any one group,” Welch told The Oregonian. “I was just protesting outsiders coming here for their tacitly fascist event.”
“I had felt like showing that a liberal, free Portland — or any major city, really — is much more American and much more numerous and strong than any of these interloping groups,” said Welch, who the outlet notes is a registered Democrat who voted for Sanders in the 2016 primary and Hillary Clinton in the general election.
More here. Watch the video at the link. Masked thugs try to steal the flag, and when he refused to let go one smashes him on the head with what looks like a baton. Another then comes over and appears to hit him again while he lies on the ground.
I repeat: These are brown-shirted, KKK, Nazi, communist, fascist, jack-booted thugs, who will not tolerate any dissent, and hate the United States and the freedom it stands for.
Mob rips down Confederate statue
They’re coming for you next: A mob of protesters yesterday pulled down a Confederate statue in Chapel Hill, North Carolina.
The monument was ripped down after 9:15 p.m. Earlier in the evening, protesters covered the statue with tall, gray banners, erecting “an alternative monument” that said, in part, “For a world without white supremacy.”
Protesters were apparently working behind the covering with ropes to bring the statue down, which happened more than two hours into a rally. It fell with a loud clanging sound, and the crowd erupted in cheers.
After Silent Sam tumbled to the ground, people darted in and out of the crowd through a haze from smoke bombs. Atop the statue someone placed a black cap that said, “Do It Like Durham,” an apparent reference to the toppling of a Confederate statue there a year ago.
Just remember, this protest has nothing to do with fighting racism. This mob, some of whom were masked in black, not unlike the KKK, is instead telling you that they will do whatever they have to do make sure no one ever disagrees with them. And if you do, they will come after you with the same violence and force.
And if you don’t believe me watch the video at the link. These are not peaceful demonstrators promoting love. They hate, and they believe they have the right to do anything, no matter how violent, to get what they want.
Trump EPA proposes new power plant climate rules
The Trump administration has now proposed a revision to the climate rules established by the Obama administration to limit carbon dioxide releases at power plants.
President Donald Trump’s administration released a plan today to regulate carbon dioxide emissions at power plants, undercutting a much broader effort by former President Barack Obama to slash planet-warming gases.
The U.S. Environmental Protection Agency (EPA) proposal would give states wide latitude for determining how to cut greenhouse gases from the power sector, a key contributor in the U.S. to climate change. The proposed rule is far narrower than the Obama plan, which sought to cut emissions across the power sector rather than only at individual plants.
On the campaign trail in 2016, Trump promised to repeal Obama’s rule, called the Clean Power Plan. His administration stopped short of that today and is instead offering a weakened alternative to avoid a potentially damaging defeat in court.
Based on the article and the actual proposal [pdf], I am far from convinced this change reduces regulation that much. It appears to shift the regulation to the states, but whether this simplifies things for power plant operators is very doubtful.
Not surprisingly, the Democrats and various leftist environmental groups oppose the change. Expect lawsuits, since it is absolutely forbidden for any subsequent president to ever change policies set by past Democratic presidents.
Air Force to accelerate hypersonic weapon development?
By signing two different contracts worth $1.4 billion in the past four months with Lockheed Martin, the Air Force is claiming that it is accelerating the development of hypersonic weapons in order to keep up with similar development by the Chinese and the Russians.
The first contract, announced in April, awards $928 million to develop something called the Hypersonic Conventional Strike Weapon (HCSW). And last week, the Air Force disclosed another deal, worth up to $480 million, to begin designing the Air-Launched Rapid Response Weapon (ARRW).
“We are going to go fast and leverage the best technology available to get hypersonic capability to the war fighter as soon as possible,” Secretary of the Air Force Heather Wilson said in a statement last week.
Hypersonic vehicles travel at least five times faster than the speed of sound (Mach 5; Mach 1 at sea level is 762 mph, or 1,226 km/h). And they’re designed to be maneuverable, which differentiates them from intercontinental ballistic missiles (ICBMs) and other fast-flying conventional weapons systems that follow predictable paths. “We don’t currently have effective defenses against hypersonic weapons because of the way they fly; i.e., they’re maneuverable and fly at an altitude our current defense systems are not designed to operate at,” Richard Speier, adjunct staff at the nonprofit RAND Corp., told CNBC in March. “Our whole defensive system is based on the assumption that you’re gonna intercept a ballistic object.”
I am a bit skeptical here. The military has been playing around with hypersonic development now for the last fifteen years, spending a lot of money flying a handful of test flights of three different design concept prototypes. Nothing is even close to an actual operational vehicle. These new contracts might produce something, but I fear that they are also pork-laden, and will be too expensive and take far too long, producing nothing more than test prototypes once again.
Flying Boeing’s Starliner capsule
Link here. The article provides some nice details about the way the spacecraft will operate (mostly by computer), with the astronauts monitoring and capable of taking over at any point.
Unlike Dragon, the control panel has no touchscreens. According to astronaut Chris Ferguson, the design was “borrowed a little bit from Orion, and it’s kind of the way some of the 5th generation military planes interact with pilots.” Not as fancy, but maybe more practical. I still have my doubts about the ability of astronauts to accurately press a touchscreen during the vibrations of launch.
There is something else, however, about this article that bugs me. It reads too much like an SLS update, filled with glowing reports that, in the case of SLS, are designed to disguise a program that is not going to meet its schedule. This is pure speculation based on nothing but instinct, but it is an impression I have and do not like.
Stratolaunch to build its own upper stages
Capitalism in space: Stratolaunch today announced that it is designing and building three differently-sized upper stage rockets to attach to the fuselage of its giant Roc airplane.
Beside the Pegasus rocket, owned by Northrop Grumman, aimed for first flight in 2020, Stratolaunch will build a medium and medium-heavy rockets, with the former set for a 2022 flight, as well as a fully reusable space plane, now in early development.
The space plane concept would apparently be capable of taking payloads up and down from orbit, and could therefore become the first totally reusable launch capability.
Overall, it does appear that the company, unable to find someone else to design its upper stage, has been forced to do it itself.
Parker makes first course adjustment
The Parker Solar Probe successfully made its first mid-course correction burn yesterday.
Spacecraft controllers at the mission operation center initiated the two-part TCM-1 [trajectory correction maneuver] beginning at 6:00 a.m. EDT on Aug. 19 with a 44-second burn of the engines. The majority of the engine firing, which lasted just over seven minutes, began at 6:00 a.m. EDT on Aug. 20.
The spacecraft is now traveling at almost forty thousand miles per hour, easily enough to escape the solar system. Its course however is such that it will instead zip past the Sun, at closer distances after each orbit and Venus flyby.