Year: 2022

ESA delays first Ariane-6 launch to late in 2023

10:02 am

The European Space Agency has once again delayed the first Ariane-6 launch, shifting it to the fourth quarter of 2023.

Even so, officials warned that this is merely “a planned date,” and that static fire tests of both the first stage and second stage must first be completed before the launch can go forward.

Ariane-6 was initially supposed to begin launching in 2020, putting it three years behind schedule. Furthermore, it has struggled to obtain customers, as it is entirely expendable and thus expensive and not competitive with SpaceX’s Falcon 9.

Since Ariane-6 is delayed and the Ariane-5 rocket’s has only a few launches left before retirement, ESA officials also noted that it has now been forced to buy two launches from SpaceX.

The launches include the Euclid space telescope and the Hera probe, a follow-up mission to NASA’s DART spacecraft which last month succeeded in altering the path of a moonlet in the first test of a future planetary defence system. “The member states have decided that Euclid and Hera are proposed to be launched on Falcon 9,” ESA Director General Josef Aschbacher told reporters after a meeting of the 22-nation agency’s ministerial council.

The launches will take place in 2023 and 2024 respectively.

The irony is that ESA is probably going to save a lot of money launching with the Falcon 9, rather than its own Ariane-6. In fact, I would not be surprised if the total SpaceX price for both launches equals one Ariane-6 launch. Furthermore, SpaceX gets this business because its own American competitors, ULA and Blue Origin, have also failed to get their new rockets flying on time.

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SpaceX launches 54 Starlink satellites

9:37 am

SpaceX today successfully used its Falcon 9 rocket to launch 54 Starlink satellites.

The first stage completed its 10th flight, landing on its drone ship in the Atlantic.

The leaders in the 2022 launch race:

48 SpaceX
45 China
15 Russia
8 Rocket Lab
7 ULA

American private enterprise now leads China 68 to 45, and is tied with the entire world combined 68 each. Note that SpaceX’s 48 launches so far this year matches the entire total for the U.S. last year.

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October 19, 2022 Quick space links

3:57 pm

Courtesy of BtB’s stringer Jay.

 

 

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A pseudo-oblique view of Jupiter’s cloud-tops

1:20 pm

A pseudo-oblique view of Jupiter's cloud-tops
Click for original image.

Cool image time! The image to the right, cropped, reduced, and annotated to post here, was created on October 18, 2022 by citizen scientist Thomas Thomopoulos from one of the photos taken by Juno during its close fly-by of Jupiter in May 2018.

He created this three dimensional relief by assigning different elevation values across the image’s greyscale, with white having the highest elevation. This relief is thus not based on actual topography, but it provides a nice way to illustrate the cloud structures of Jupiter’s cloud tops. It also, as Thomopoulos notes, provide a good way to possibly “see a representation in relief of surface movements.” Nor is his topography based on greyscale far wrong, since in many Jupiter images the lighter colored clouds are generally higher because the darker ones are in shadow.

The map below provides the context and scale of this image.
» Read more

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Moderna CEO admits to past lies: “COVID is simply the flu, harmless to the healthy.”

12:49 pm

The liar at Moderna
The liar in charge at Moderna

On October 17, 2022 during a news conference, Stéphane Bancel, the CEO of the drug company Moderna, made the following statement about COVID, the so-called plague that allowed his company (and others) to make billions pushing their jabs on a terrified public:

“I think it’s going to be like the flu. If you’re a 25-year-old, do you need an annual booster every year if you’re healthy?

“You might want to… but I think it’s going to be similar to flu where it’s going to be people at high-risk, people above 50 years of age, people with comorbidities, people with cancer and other conditions, people with transplants.”

Gee, where I have heard these exact words for the past two-plus years? Could it have been on this very same webpage, said by me as well as numerous other cool-headed experts who — rather than panicking — looked at the actual data? From my first detailed post about COVID in March 2020, using all the early real data:

The death rate is mostly confined to the older population with already existing health issues, like the flu.

This early conclusion was later confirmed again and again in the months that followed. From September 2020, for example, in citing CDC data I wrote:
» Read more

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Twelve years of data from WISE

10:43 am

The Wide Field Infrared Survey Explorer (WISE) was launched in 2009 with an intended mission of two years, during which it would map the sky looking for asteroids. In 2011 NASA extended the mission, renaming the telescope for inexplicable reasons to NEOWISE (adding “Near-Earth Object” to the beginning).

In the more than a decade since, the telescope has been able to get eighteen repeated scans of the entire sky, allowing scientists to track many changes in a variety of stellar objects over time.

Yesterday NASA issued a press release celebrating this long achievement.

Every six months, NASA’s Near-Earth Object Wide Field Infrared Survey Explorer, or NEOWISE, spacecraft completes one trip halfway around the Sun, taking images in all directions. Stitched together, those images form an “all-sky” map showing the location and brightness of hundreds of millions of objects. Using 18 all-sky maps produced by the spacecraft (with the 19th and 20th to be released in March 2023), scientists have created what is essentially a time-lapse movie of the sky, revealing changes that span a decade.

There is a bit of hype in this claim. The data isn’t really useful when looked at across the entire sky. One has to zoom into particular objects to see them evolve over time. Also, many of these changes, such as with variable stars, are well known and tracked by many other telescopes.

Nonetheless, this infrared database is very valuable. It can be used for example by astronomers to identify objects that should be viewed with high resolution in the infrared, by Webb.

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Webb takes infrared image of Hubble’s Pillars of Creation

10:28 am

The Pillars of Creation, as seen by Hubble and Webb
Click for original image.

Not unexpectedly, astronomers have quickly begun aiming the Webb Space Telescope’s infrared eye at some of the most famous targets previously imaged in optical wavelengths by the Hubble Space Telescope.

The newest example is shown to the right and reduced and labeled to post here. It shows what NASA officials dubbed “The Pillars of Creation” when Hubble first photographed this nebula in 1995, with a later 2014 Hubble optical image at the top and the new 2022 Webb infrared image on the bottom. From this image’s caption:

A new, near-infrared-light view from NASA’s James Webb Space Telescope, at [bottom], helps us peer through more of the dust in this star-forming region. The thick, dusty brown pillars are no longer as opaque and many more red stars that are still forming come into view.

While the pillars of gas and dust seem darker and less penetrable in Hubble’s view [top], they appear more diaphanous in Webb’s. The background of this Hubble image is like a sunrise, beginning in yellows at the bottom, before transitioning to light green and deeper blues at the top. These colors highlight the thickness of the dust all around the pillars, which obscures many more stars in the overall region.

In contrast, the background light in Webb’s image appears in blue hues, which highlights the hydrogen atoms, and reveals an abundance of stars spread across the scene. By penetrating the dusty pillars, Webb also allows us to identify stars that have recently – or are about to – burst free. Near-infrared light can penetrate thick dust clouds, allowing us to learn so much more about this incredible scene.

While the Hubble colors attempt to mimic the colors seen by the human eye, the colors in the Webb image are all false colors, chosen by the scientists to distinguish the different infrared wavelengths produced by different features in the picture.

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SpaceX simplifies smallsat rideshare program, effectively slashing prices

10:11 am

SpaceX has reworked its smallsat rideshare program to allow smaller satellite customers to book directly with the company, effectively slashing the prices they are charged.

While it technically hasn’t reduced its prices, SpaceX will now allow satellites as small as 50 kilograms to book directly through the company at its virtually unbeatable rate of $5500 per kilogram. Before this change, customers with small satellites would either have to pay for all the extra capacity they weren’t using, boosting their relative cost per kilogram, or arrange their launch services with a third-party aggregator like Spaceflight or Exolaunch.

Part of the reason for this change is the shift by SpaceX to a new satellite deployment platform that allows for a wider variety of satellites of all sizes. Some tiny satellites will no longer have to rely on an aggregator’s own deployment platform.

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The first Greek star catalog discovered hidden in medieval parchment

10:04 am

Scientists have discovered part of the first Greek star catalog created by Hipparchus — thought by many to have invented the modern field of astronomy — hidden in a medieval parchment that had been reused for other puposes.

Scholars have been searching for Hipparchus’s catalogue for centuries. James Evans, a historian of astronomy at the University of Puget Sound in Tacoma, Washington, describes the find as “rare” and “remarkable”. The extract is published online this week in the Journal for the History of Astronomy. Evans says it proves that Hipparchus, often considered the greatest astronomer of ancient Greece, really did map the heavens centuries before other known attempts. It also illuminates a crucial moment in the birth of science, when astronomers shifted from simply describing the patterns they saw in the sky to measuring and predicting them.

The manuscript came from the Greek Orthodox St Catherine’s Monastery in the Sinai Peninsula, Egypt, but most of its 146 leaves, or folios, are now owned by the Museum of the Bible in Washington DC. The pages contain the Codex Climaci Rescriptus, a collection of Syriac texts written in the tenth or eleventh centuries. But the codex is a palimpsest: parchment that was scraped clean of older text by the scribe so that it could be reused.

Using modern multi-spectral imaging, the researchers were able to decipher the older text, and determined it was almost certainly written by Hipparchus and included his star measurements.

Read the whole article at the link. It is a fascinating detective story describing the origins of modern astronomy in western civilization.

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Isaacman’s next private mission to space now scheduled for March ’23

9:53 am

Jared Isaacman’s next private mission on a Dragon capsule, dubbed Polaris Dawn, has now been scheduled for March ’23, during which the first spacewalk by a private citizen will occur.

The mission is planned to last five days, will have a crew of four led by Isaacman, and will also attempt the highest Earth orbit flown by any manned mission. From the mission’s webpage:

At approximately 700 kilometers above the Earth (434 miles), the crew will attempt the first-ever commercial extravehicular activity (EVA) with SpaceX-designed extravehicular activity (EVA) spacesuits, upgraded from the current intravehicular (IVA) suit.

It is not clear if one or all four of the crew members will participate in that spacewalk. At a minimum, all four must be in suits that can work during a spacewalk, since their Dragon capsule does not have an airlock.

The mission will also be used as to raise funds for St. Jude Children’s Hospital, as was done during Isaacman’s first flight, Inspiration4, in the fall of 2021.

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