Category: Points of Information

Very brief descriptions, with appropriate links, of current or recent news items.

Rocket Lab opens Wallops Island launchpad

8:55 am

Capitalism in space: Rocket Lab yesterday officially cut the ribbon on its first U.S.-based launchpad at Wallops Island, Virginia.

Rocket Lab aims to launch up to 12 missions a year from LC-2 [Wallops], about one a month, once flights begin in 2020. The first mission will launch in spring 2020 to deliver the U.S. Air Force’s Space Test Program 27RM (STP-27RM) mission into orbit. That mission will launch a microsatellite called Monolith to see if small satellites can effectively carry “large aperture” space weather payloads, said Lt. Col. Meagan Thrush, program element monitor for space launch and control for the Air Force, in a news conference here today.

The company has a similar launch rate capability at its New Zealand launch site. Thus, if they have the customers, Rocket Lab now has the ability to launch upwards of 24 times next year.

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Interacting galaxies

8:42 am

Interacting galaxies
Click for full image.

Astronomers using the 8-meter Gemini Telescope on Mauna Kea today released a new image of the Heron galaxy, showing its interaction with a nearby neighbor.

The new image captures the slow and intimate dance of a pair of galaxies some 160 million light-years distant and reveals the sparkle of subsequent star formation fueled by the pair’s interactions.

The two galaxies, astronomers have concluded, have already “collided” at least once. However, galactic collisions can be a lengthy process of successive gravitational encounters, which over time can morph the galaxies into exotic, yet unrecognizable forms. These galaxies, as in all galactic collisions, are engaged in a ghostly dance as the distances between the stars in each galaxy preclude actual stellar collisions and their overall shapes are deformed only by each galaxy’s gravity.

One byproduct of the turbulence caused by the interaction is the coalescence of hydrogen gas into regions of star formation. In this image, these stellar nurseries are revealed in the form of the reddish clumps scattered in a ring-like fashion in the larger galaxy (and a few in the smaller galaxy). Also visible is a dusty ring that is seen in silhouette against the backdrop of the larger galaxy. A similar ring structure is seen in this previous image from the Gemini Observatory, likely the result of another interacting galactic pair.

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New storm spotted at Jupiter’s south pole

8:31 am

New cyclone at Jupiter's south pole
Click for full image.

New images from Juno have revealed the formation of a new Texas-sized cyclone joining the circle of storms around Jupiter’s south pole.

In the infrared Juno image to the right, the new storm is the small bright cyclone in the lower right.

[D]uring Juno’s 22nd science pass [on November 3], a new, smaller cyclone churned to life and joined the fray. “Data from Juno’s Jovian Infrared Auroral Mapper [JIRAM] instrument indicates we went from a pentagon of cyclones surrounding one at the center to a hexagonal arrangement,” said Alessandro Mura, a Juno co-investigator at the National Institute for Astrophysics in Rome. “This new addition is smaller in stature than its six more established cyclonic brothers: It’s about the size of Texas. Maybe JIRAM data from future flybys will show the cyclone growing to the same size as its neighbors.”

Probing the weather layer down to 30 to 45 miles (50 to 70 kilometers) below Jupiter’s cloud tops, JIRAM captures infrared light emerging from deep inside Jupiter. Its data indicate wind speeds of the new cyclone average 225 mph (362 kph) – comparable to the velocity found in its six more established polar colleagues.

Because of Juno’s orbit we do not get continuous views of the gas giant’s cloud-tops, so we can’t see the moment-by-moment evolution of these storms, which makes it impossible to obtain a full understanding of their formation or disappearance. Even then it will likely take centuries of observations to even begin to get a fuller understanding of the meteorology of Jupiter.

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Major victory for Boris Johnson, Tories, and Brexit

7:18 pm

A victory for democracy: In the elections today in the United Kingdom it appears at this moment that the conservative Tories under Boris Johnson, running under a platform to quickly enforce the public’s vote three years ago to leave the European Union, have won the biggest majority since the 1980s under Margaret Thatcher.

As is typical in the modern journalist field, these results are also much more favorable to the conservatives than all the polls, which had called for a much closer result. The result is also a major rejection of Great Britain’s leftist and increasingly anti-Semitic Labor Party under Jeremy Corbyn.

Most important, the victory for Johnson is also a vindication of his strong position that he and Great Britain’s politicians had a responsibility to respect the voters’ choice three years ago to exit the European Union, and the effort by politicians to nullify that vote was a direct attack on democracy. The voters have clearly shown their contempt for that nullification effort, and have said so forcefully at the polls.

My immediate thought, from an American perspective: If only the American voters were as willing to make such a forceful statement. Our Democratic Party has been acting as bad and as anti-democratic as the politicians in the UK these past three years. It is long past time for a major political house-cleaning in Washington.

So far, the American voters have shown no inclination to do this, however, and in fact in the 2018 election did the exact opposite, rewarding the corrupt Democratic Party with more power by giving them control of the House. The result has been this ludicrous impeachment effort by the Democrats that is blatantly an effort to nullify the 2016 presidential election. They have no grounds for impeachment and the removal of Donald Trump, other than the fact that they don’t like him and that he beat them in a fair election.

They should be punished in the same way. Will the American voters do it? So far I remain pessimistic. I also pray every day that my pessimism turns out to be wrong.

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New Hubble images of Comet 2I/Borisov

12:17 pm

Comet 2I/Borisov taken by Hubble prior to and at its closest approach to Sun
Click for full image.

Scientists today released new images taken by the Hubble Space Telescope of the interstellar object Comet 2I/Borisov. The image on the left was taken prior to the comet’s closest approach to the Sun, while the image on the right was taken during that closest approach. The vertical smeared object to the left in the earlier image is a galaxy that happened to be in the field of view. The blue color of both images is a false color to bring out details.

“Hubble gives us the best upper limit of the size of comet Borisov’s nucleus, which is the really important part of the comet,” said David Jewitt, a UCLA professor of planetary science and astronomy, whose team has captured the best and sharpest look at this first confirmed interstellar comet. “Surprisingly, our Hubble images show that its nucleus is more than 15 times smaller than earlier investigations suggested it might be. Our Hubble images show that the radius is smaller than half-a-kilometer. Knowing the size is potentially useful for beginning to estimate how common such objects may be in the solar system and our galaxy. Borisov is the first known interstellar comet, and we would like to learn how many others there are.”

The first image was taken from a distance of 203 million miles, while the second was taken from 185 million miles. Expect more images in late December, when the comet makes its closest approach to Earth at a distance of 180 million miles.

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OSIRIS-REx team picks primary sample site

12:03 pm

Four candidate landing sites
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The OSIRIS-REx science team has picked the site they have dubbed Nightingale as the primary landing site where they will attempt to obtain a sample from the asteroid Bennu in the summer of 2020. The back-up site is Osprey at the equator.

I have embedded the replay of the NASA live stream of the press event below the fold. The first 21 minutes of the video are an overview of the mission, leading up to the announcement by Dante Lauretta, OSIRIS-REx’s principal investigator. He notes then that the site “does have some hazards” but they chose it for its “scientific value.” While its higher latitude location has some advantages, it also makes it more difficult for landing. The one large boulder there, which Lauretta calls “Mt Doom,” also carries risk for the touch-and-go operations.

The back-up site, Osprey, is on the equator with less hazards, but will present more problems obtaining the tiny-sized particles the sample grab equipment was designed to get.

Not that this matters, but if I have been in a betting pool I would have won, since Nightingale has been my guess for which site they’d pick since early November.
» Read more

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Buyer of Stratolaunch revealed though unconfirmed

8:43 am

A news story today at Geekwire has revealed, based on business filings in Washington and California, the new owner of the company Stratolaunch.

Filings with regulators in California and Washington show that a new LLC business, also called Stratolaunch, was incorporated in late October, at Stratolaunch’s existing offices in Seattle and Mojave, Calif. The new Stratolaunch’s executive vice president is named as Michael Palmer, Cerberus’ managing director.

Private-equity firms typically replace existing managers as a prelude to realigning businesses they buy, which can involve firing, automation and offshoring. However, it appears that Jean Floyd, Stratolaunch’s president and CEO since 2015, remains in his roles for now.

It appears the new owners, who did not confirm the Geekwire story, are now marketing the huge Roc airplane as a launch platform for hypersonic test flights rather than orbital satellites.

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New Shepard completes another test flight

11:09 am

Capitalism in space: Blue Origin today successfully completed its sixth unmanned test flight (a new record) of its third New Shepard reusable suborbital spacecraft, the twelfth flight total and the ninth to carry commercial payloads.

The capsule reached an altitude of about 342,000 feet elevation.

Blue Origin’s success here is commendable. I just wish their launch pace was faster. At the pace they are setting I am beginning to think that SpaceX will be flying people to the Moon on Starship before Blue Origin flies its first commercial tourist suborbital flight.

I have embedded the video of the flight below the fold.
» Read more

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Russia and India launch satellites

8:18 am

Two launches since yesterday. First, Russia used its Soyuz-2 rocket to place another GPS-type Glonass satellite into orbit. This was Russia’s 20th successful launch in 2019, the first time that country has hit that number since 2015.

Then India used its PSLV rocket to launch a military radar reconnaissance satellite.

The leaders in the 2019 launch race:

29 China
20 Russia
12 SpaceX
7 Europe (Arianespace)
6 Rocket Lab
6 India

China remains the leader in the national rankings, 29 to 25 over the U.S.

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How the Mars2020 rover differs from Curiosity

1:00 pm

A JPL press release today outlines some of the main engineering differences between Curiosity, the rover that has been exploring Gale Crater for the past fifteen years, and Mars2020, the unnamed rover that will be launched in July 2020 to explore Jezero Crater

One of the major the engineering improvements, based on what was learned with Curiosity, are the Mars2020 wheels:

Curiosity has prepared Mars 2020’s team for “off-roading” on the Red Planet. When holes began appearing in the veteran rover’s aluminum wheels, engineers realized that sharp rocks cemented on the Martian surface exert more pressure on the wheels than expected. Careful drive planning, along with a software upgrade, will keep them in shape for the rest of Curiosity’s journey up Mount Sharp.

While Mars 2020’s wheels are made from the same materials, they’re slightly bigger and narrower, with skins that are almost a millimeter thicker. Instead of Curiosity’s chevron-pattern treads, or grousers, Mars 2020 has straighter ones and twice as many per wheel (48 versus 24). Extensive testing in JPL’s Mars Yard has shown these treads better withstand the pressure from sharp rocks but work just as well on sand.

The computer and software has also been upgraded to speed daily operations. In addition, the new rover will have 23 cameras, six more than Curiosity, all of which will be capable of producing color images. And most important, the drill will be larger and will drill cores for obtaining samples that will be stored for possible return by a later mission.

The landing is set for February 18, 2021. If all goes well this rover will be exploring the Martian surface well in to the 2030s.

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Morgan Stanley recommends buying Virgin Galactic stock

9:46 am

Capitalism in space: A report yesterday by Morgan Stanley recommended the purchase of Virgin Galactic stock because of its claim that it might repurpose its SpaceShipTwo suborbital spacecraft from space tourism to point-to-point transportation on Earth.

Morgan Stanley began coverage of Virgin Galactic’s stock on Monday with an overweight rating, saying the space tourism company’s shares will soar as it proves out a long-term plan of flying people around the world at hypersonic speeds. “A viable space tourism business is what you pay for today … but a chance to disrupt the multi-trillion-dollar airline [total addressable market] is what is really likely to drive the upside,” Morgan Stanley analyst Adam Jonas wrote in a note to investors.

…Morgan Stanley’s price target of $22 a share represents a 203% increase from Virgin Galactic’s current levels. The company outlined a three phase plan to investors during its roadshow earlier this year. While Morgan Stanley gave a $10 a share valuation to Virgin Galactic’s space tourism business, phases one and two of its plan, the firm sees $12 a share in value from phase three: Hypersonic point-to-point air travel.

The report caused the space company’s lagging stock to surge yesterday, though its value today ($9.41) remains well below its opening price ($12.53).

Personally I think anyone who takes Morgan Stanley’s advice is a fool. Virgin Galactic has spent fifteen years trying to develop this suborbital spacecraft, and has still not flown any customers. Moreover, the design is underpowered, which means I have serious doubts it could be used for any point-to-point transportation. To make that happen will require a complete redesign.

This recommendation by Morgan Stanley also suggests that this is not my investment firm of choice. The analysis here seems very poor and somewhat ignorant of the technology involved, and suggests instead that it was aimed merely to cause a jump in the price so that some of Morgan Stanley’s customers could get rid of their already-purchased stock without too much loss.

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