Strasbourg Saxophone Ensemble – Vivaldi’s Winter
A evening pause: Remember, this was written for the violin.
Hat tip Danae.
Year: 2019
The temperature on Phobos
Click for full image.
The Mars Odyssey science team today released false color images of the Martian Moon Phobos showing the temperature range that the spacecraft has detected, shown above in a reduced form.
The April 24, 2019 image is the first time Mars Odyssey had gotten a full moon look at the Moon. Not surprisingly, the hottest spots on the surface are at the center, at noon, with it getting cooler as one gets to the outer edges near dawn and dusk and at the poles.
North Korea does second missile test in a week
North Korea today did its second short-range missile test in the past week.
They launched two missiles, each traveling about 260 miles.
This is clearly a negotiating tactic on their part. This spat of launches now might also have been encouraged by their sponsor, China, which is also in negotiations with the Trump administration about trade. China gains negotiating leverage with Trump in that it can say: Give us what we want and we will pressure North Korea to cease missile tests.
Russia to launch two more American astronauts on Soyuz
A news report from Russia today announced that NASA has extended its contract with Roscosmos so that two more American astronauts will fly to ISS using a Soyuz rocket and capsule.
Russia and the United States have agreed on two additional places on board of Soyuz carrier rockets for journeys of NASA astronauts to the International Space Station (ISS), Roscosmos Executive Director for Manned Programs Sergei Krikalyov told TASS. “The documents have been approved,” Krikalyov said adding that it the procedure to sign the papers took place before a recently reported incident with Crew Dragon spacecraft.
According to Krikalyov, there was no new draft of the document as it was “Simply an update to the previously signed contract, everything was in work order and there was no solemn ceremony to mark the signing of the documents.”
This agreement practically guarantees that there will be no Americans flying on American-built spacecraft in 2019. Rather than push SpaceX and Boeing to get their technical problems solved quickly so they can start flying, NASA can continue to slow-walk their development by going to the Russians. For NASA bureaucrats, using the Russians is to their advantage. Any failures can be blamed on the Russians, not NASA due diligence, which would be the case if an American privately-built capsule failed.
Moreover, slow-walking the American spacecraft helps NASA avoid further embarrassment with its own manned system, SLS/Orion, which is years behind schedule. By slowing the private capsules, the delays with SLS/Orion won’t seem so bad.
In other words, NASA’s approach here favors itself and the Russians over the interests of our country and American private companies. It is too bad no one in the Trump administration notices, or cares.
April parachute test for manned Dragon had problems
In testimony yesterday before Congress NASA’s chief of human spaceflight, Bill Gerstenmaier, revealed that during a test of the parachute system SpaceX will use on its manned Dragon capsule there was a problem.
The test appears to have occurred last month at Delamar Dry Lake in Nevada, where SpaceX was conducting one of dozens of drop tests it intends to perform to demonstrate the safety of its Crew Dragon spacecraft. This was a “single-out” test in which one of Dragon’s four parachutes intentionally failed before the test. “The three remaining chutes did not operate properly,” Gerstenmaier said.
…The test sled, Gerstenmaier confirmed, was “damaged upon impact with the ground.”
The cause of the failure, which might have been parachute design or a failure in the test equipment (such as the release from the airplane) is still being investigated.
This news, combined with the failure during Dragon thruster tests, also in April, likely guarantees that SpaceX will not launch in 2019. If it were up to SpaceX, I think they could get these issues dealt with and fly, but their customer is NASA, and NASA is notoriously slow at investigating and fixing engineering test problems like these.
My next post above underlines this conclusion.
Smallsat launch company breaks ground on satellite-flinging test facility
Capitalism in space: SpinLaunch, a new smallsat launch company that proposed to put its customer’s satellites into orbit by “flinging” them upward, has broken ground on a facility where it will test this radical launch technology.
The company broke ground yesterday (May 7) at Spaceport America in New Mexico, marking the start of construction on a $7 million flight-test facility.
And this will be no ordinary launch pad. SpinLaunch is developing a kinetic-energy-based system that will fling small spacecraft skyward without firing up a rocket engine (though traditional chemical propulsion does come into play later in the flight). If all goes according to plan, SpinLaunch will eventually be able to loft satellites cheaply and rapidly — up to five times per day, at about $250,000 a pop, company representatives have said.
They have already raised $40 million in investment capital, and hope to do their first commercial launch in 2022.
While this company is far behind the leaders in the smallsat launch race, it very much seems to represent the second wave of competition. The first wave is generally using tried and true concepts of rocketry, albeit applied with modern technology and some innovation to lower the costs. The second wave will involve companies trying to beat that first wave with new and radical ideas that will lower the costs even more. SpinLaunch appears to be in that group.
May 7, 2019 Zimmerman/Batchelor podcast
Embedded below the fold in two parts.
» Read more
Big Bang Theory – If I Didn’t Have You (Bernadette’s Song)
An evening pause: Fans of the show will appreciate this more, but I like it because of its heart felt sincerity.
Hat tip Edward Thelen.
May 7, 2019 Zimmerman Space Show podcast
David Livingston has now made the podcast of my two hour appearance on the Space Show available. You can either listen or download the podcast here.
I would call this one of the best shows. Among the topics discussed was the smallsat rocket revolution, the corruption of governmental rule expressed by the creation of Gateway without the approval of elected officials, and the Chinese threat to the U.S. space industry and military.
The temperature on Bennu
The OSIRIS-REx science team have released a short movie, compiled from data obtained in November 2018 as the spacecraft was first approaching the asteroid Bennu, that shows the dayside surface temperature and how it changes as the asteroid rotates.
I have embedded the movie below the fold.
Within a distance of only about 850 feet the temperature rises more than 270 degrees, from -99.67 °F to 170.33 °F. This change also occurs at every spot as the asteroid rotates. At dawn it will be that cold, and by noon it will be that hot.
» Read more
Singers from everywhere – Sittin’ On The Dock Of The Bay
An evening pause: A video like this could only be created by modern technology.
Hat tip Danae.
House Democrats threaten to withhold salaries from Trump officials
The various House committees now run by the Democrats who have been demanding information and testimony from a host of Trump administration officials, some very inappropriate and even possibly illegal, are now threatening to withhold salaries from any Trump officials who defy their demands.
House Oversight and Reform Committee Chairman Elijah Cummings (D-Md.) sent letters Tuesday calling for eight current and former Trump administration officials to provide information for two of the panel’s investigations, cautioning that officials who block the interviews from taking place could see their salaries withheld.
“Please be advised that any official at the Department who ‘prohibits or prevents’ or ‘attempts or threatens to prohibit or prevent’ any officer or employee of the Federal Government from speaking with the Committee could have his or her salary withheld pursuant to section 713 of the Financial Services and General Government Appropriations Act,” Cummings wrote in the letters.
Cummings is one of two House committees threatening this action.
I doubt they will be able to follow through with this threat, but I am very sure they mean it and will do it if they can. And this illustrates better than anything the difference between the weak-kneed Republicans in Washington and the Democrats. The Republicans are generally afraid of their own shadow, and are never really willing to use the law or the evidence aggressively to gain a political advantage. The Democrats meanwhile always mean business, and will do whatever they can to get what they want. This is why we are losing the country to these thugs.
And it is also why we have Trump today. Unlike those cowardly Republicans, Trump also means business, and is willing to fight. I might not always agree with him, but so far he has been very straight about what he wants to do, and he has done everything he can to aggressively achieve those goals.
I just wish we had a few more people on the right side of politics with the same courage.