Author: Robert Zimmerman

Technical issue on New Shepard delays fifth passenger flight

9:57 am

Capitalism in space: Because of an as yet unexplained technical issue discovered on its New Shepard suborbital spacecraft, Blue Origin has scrubbed tomorrow’s planned fifth passenger flight.

The only information the company released was in a tweet yesterday:

During our final vehicle check-outs, we observed one of New Shepard’s back-up systems was not meeting our expectations for performance.

No other information has so far been released, nor has the company indicated when the flight might be rescheduled. It is intended to carry six passengers on a short suborbital flight, including one making his second flight on New Shepard.

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Puzzling telemetry from Voyager-1 suggests problem

9:49 am

Engineers are puzzling over strange operational data coming from Voyager-1, launched in 1977 and now in interstellar space more than 14 billion miles away, that suggests a technical problem but also makes no sense.

The engineering team with NASA’s Voyager 1 spacecraft is trying to solve a mystery: The interstellar explorer is operating normally, receiving and executing commands from Earth, along with gathering and returning science data. But readouts from the probe’s attitude articulation and control system (AACS) don’t reflect what’s actually happening onboard.

The AACS controls the 45-year-old spacecraft’s orientation. Among other tasks, it keeps Voyager 1’s high-gain antenna pointed precisely at Earth, enabling it to send data home. All signs suggest the AACS is still working, but the telemetry data it’s returning is invalid. For instance, the data may appear to be randomly generated, or does not reflect any possible state the AACS could be in.

The issue hasn’t triggered any onboard fault protection systems, which are designed to put the spacecraft into “safe mode” – a state where only essential operations are carried out, giving engineers time to diagnose an issue. Voyager 1’s signal hasn’t weakened, either, which suggests the high-gain antenna remains in its prescribed orientation with Earth.

Figuring out what has happened is made more difficult by distance. It takes about 20 hours for signals to get from Voyager-1 to Earth, even at the speed of light. Thus, any attempted fix will arrive almost two days after it first occurred, at the soonest.

Both Voyager-1 and Voyager-2 are still operating, though at significantly reduced power. It is expected that sometime in the next few years their nuclear power sources will finally be unable to produce enough power to keep them functioning. If so, both spacecraft will have survived the maximum time predicted when launched.

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A giant elliptical galaxy

3:14 pm

A giant elliptical galaxy
Click for full image.

Cool image time! The image to the right, reduced to post here, was taken by the Hubble Space Telescope of the giant elliptical galaxy NGC 474.

Located some 100 million light-years from Earth, NGC 474 spans about 250,000 light-years across – that’s 2.5 times larger than our own Milky Way galaxy! Along with its enormous size, NGC 474 has a series of complex layered shells that surround its spherical-shaped core. The cause of these shells is unknown, but astronomers theorize that they may be the aftereffects of the giant galaxy absorbing one or more smaller galaxies. In the same way a pebble creates ripples on a pond when dropped into the water, the absorbed galaxy creates waves that form the shells.

About 10% of elliptical galaxies have shell structures, but unlike the majority of elliptical galaxies, which are associated with galaxy clusters, shelled ellipticals usually lie in relatively empty space. It may be that they’ve cannibalized their neighbors.

NGC 474 is no exception, also located in a relatively empty region of space.

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Today’s blacklisted American: Student expelled for not getting COVID booster, despite proof the booster for her was medically risky

1:06 pm

Diamond
Diamond “Ellie” Puentes, blacklisted because she believes
in “her body, her choice!”

They’re coming for you next: A student at Union College in New York, Diamond “Ellie” Puentes, was expelled from school because she refused to get a COVID booster because of the serious adverse effects she experienced after getting her second COVID shot.

More information here.

Worse, the school refused to accept her doctor’s note requesting she be exempt, or her hospital records describing the health issues she had experienced. From the first link above:

Union College’s Director of Health Services Angela Stefanatos asked her, “Are you here because you don’t want to get the booster or because you’re truly sick?”

Dr. Thomas Nelson, Puentes’ primary care physician, wrote a letter addressed to the college on April 11 regarding his patient’s concerns with the booster shot. He stated that Puentes was “in an unfavorable state of health, presumably caused by the vaccine itself.”
» Read more

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Pro-abortion advocates threaten to storm the Supreme Court, burn it down, and murder justices

12:33 pm

Real insurrection: According to a Homeland Security memo, pro-abortion protesters have been organizing to storm the Supreme Court, burn it down, and murder justices in protest should the court decide to overturn Roe v. Wade.

The threats also included attacking places of worship as well as anti-abortion clinics.

As is typical nowadays, Homeland Security tried to de-emphasize the seriousness of these threats of violence from the left by first hinting it was really a response to white supremacy and thus possibly justified, and then claiming such violence is really nothing more than constitutional protected speech. These two quotes from the memo from this Axios story illustrate this:

“Some racially or ethnically motivated violent extremists’ embrace of pro-life narratives may be linked to the perception of wanting to ‘save white children’ and ‘fight white genocide,'” the memo … says.

But the memo warns that this time, extremist acts could come from abortion-rights proponents as well. [However] “The mere advocacy of political or social positions, political activism, use of strong rhetoric, or generalized philosophic embrace of violent tactics does not constitute domestic violent extremism or illegal activity and is constitutionally protected.”

As always, our leftist government uses the premises of the left to excuse leftist violence. To them, the violence of the left is merely speech, while the speech of the right is violence, and must be silenced.

Should the Supreme Court overturn Roe v. Wade, we should all be prepared for riots as bad or worse as those that occurred after George Floyd’s death. This memo is merely stating the obvious. Since the election of Donald Trump in 2016 the left has decided that the only democracy and law it accepts is one in which it gets its way, every single time.

We should also be prepared for our government to do nothing to stop it, and if any rioters are captured to arrange their release as quickly as possible. These protests are certainly intended as a weapon to warp the results of November’s election, in favor of Democrats. Remember, the violent leftist protesters are merely the storm-troopers of the Democratic Party, used to promote violence in order to make possible the reelection of its politicians, by hook or by crook.

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The tuffy ground in the foothills of Mount Sharp

11:50 am

Shelfstone on Mars?
Click for original image.

Cool image time! The photo to the right, reduced and enhanced to post here, was taken on May 13, 2022 by the high resolution camera on the rover Curiosity, looking down at some of the unusual features on the ground near the rover.

The lighter circular feature in the center is not natural, but created by Curiosity’s Dust Removal Tool (DRT). As explained on May 16th on the science team’s blog:

When that dust settles on rocks, it can partially mask the chemistry and surface texture of these rocks from APXS and MAHLI in particular [two other Curiosity instruments]. Brushing rock surfaces with the DRT is not always possible, but it does improve scientific assessments of these surfaces.

What attracted me to this photo was the tuff-like look of that uplifted flat rock. It looks just like many surfaces one sees in a cave, where the surface gets covered with calcite flowstone or popcorn, due to either water flow or condensation and then evaporation of calcite-saturated water on the surface. In this case the cave formation this flat rock most resembles visually is shelfstone, though the formation process and chemistry was certainly different. It does suggest strongly however that some form of water process occurred here.

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NASA announces new possible launch dates for first SLS launch

10:13 am

NASA on May 16th announced the new possible launch dates for first SLS launch, outlining potential launch windows through the first half of 2023, with the first at the end of July 2022.

The calendar of launch windows through June of ’23 can be viewed here [pdf].

The July 26th to August 10th window is the one the agency is clearly targeting for that first launch, but it will not confirm this until after SLS successfully completes the next dress rehearsal countdown attempt in June. That the agency is now showing us potential launch dates in ’23 also suggests it is anticipating the possibility the launch could be delayed that much, especially if it determines it must replace the SLS’s two solid rocket boosters because they have been stacked unused for too long.

SLS was initially planned for a launch in 2015. It is now seven-plus years behind schedule, which is how long it took SpaceX to go from a blank sheet of paper to launching its Falcon Heavy for the first time.

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NASA bans American spacewalks on ISS because of chronic spacesuit issues

10:04 am

NASA's failed spacesuit
NASA’s failed Moon spacesuits

Because of repeated water leaks in the helmets of NASA’s complex spacesuits and the agency’s inability to fix the problem, agency managers have to decided to cease all American spacewalks on ISS until engineers can definitively solve the problem.

The problem first occurred during a 2013 spacewalk, causing a major investigation. Though engineers managed to gain some control over the problem, it was never truly solved. In the most recent spacewalk on March 23rd, astronauts found water inside one helmet after the walk was over. That suit will now be returned to Earth for inspection and engineering work.

This suspension of spacewalks likely delays four spacewalks planned this year to complete the upgrade to the station’s power system.

Meanwhile, NASA’s own program to build new spacesuits for its lunar missions has been an utter failure — costing more than a billion dollars over fourteen years and producing nothing — thus forcing the agency to turn to the private sector to get new suits.

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