Category: Points of Information

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

On the radio, today and Sunday

2:16 pm

For those who want to hear me on the radio, I will be doing one hour at 6:00 pm (Central) later today with Robert Pratt on Pratt on Texas, aired on 790-AM KFYO in Lubbock, 1470-AM KYYW in Abilene, and 1290-AM KWFS in Wichita Falls.

We will be talking about space, and also about masks and the tyrants presently found in many statehouses nationwide.

On Sunday I will also be talking space and science with Steve Thompson in Minnesota on WCCO-AM, also for an hour, beginning at 6:00 pm (Central).

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Star to get within a trillion miles of Sun in 1.4 million years

10:04 am

Using the precise location and motion data obtained by the space telescope Gaia, astronomers have identified a star that 1.4 million years will come within a trillion miles of the Sun.

That distance puts it well within the outer parts of the theorized Oort cloud at the edge of the solar system. Since the star, Gliese 710, has a mass half that of the Sun, it will thus disturb many objects in that Oort Cloud, causing many to eventually fall sunward and produce a hail of comets several million years later. It will be, for a long time, the brightest object in the night sky, by far.

The data also identified a number of other stars that have in past or will in the future get close to the Sun. The most important result is not that these close approaches occur, but that they have found that they are relatively rare, and even the closest, Gliese 710, never really gets that close.

The universe is big, far bigger than we can really imagine.

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“Spots” orbiting Milky Ways central black hole

9:19 am

Using the ALMA ground-based telescope array in Chile, astronomers have detected two energetic “spots” that appear to be orbiting Sagittarius A* (pronounced A-star), the super-massive black hole at the center of the Milky Way.

The spots appear to be regions in the accretion disk surrounding the black hole that are emitting energy.

Their scenario is as follows. Hot spots are sporadically formed in the disk and circle around the black hole, emitting strong millimeter waves. According to Einstein’s special relativity theory, the emission is largely amplified when the source is moving toward the observer with a speed comparable to that of light. The rotation speed of the inner edge of the accretion disk is quite large, so this extraordinary effect arises. The astronomers believe that this is the origin of the short-term variation of the millimeter emission from Sgr A*.

The team supposes that the variation might affect the effort to make an image of the supermassive black hole with the Event Horizon Telescope. “In general, the faster the movement is, the more difficult it is to take a photo of the object,” says Oka. “Instead, the variation of the emission itself provides compelling insight for the gas motion. We may witness the very moment of gas absorption by the black hole with a long-term monitoring campaign with ALMA.” The researchers aim to draw out independent information to understand the mystifying environment around the supermassive black hole.

Everyone please repeat after me: Though this scenario makes sense, based on the facts and our knowledge, there is a lot of uncertainty about these conclusions.

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Trump exiting Open Skies treaty

11:02 am

According to anonymous sources, Trump has decided to pull the U.S. out of the Open Skies Treaty, negotiated in 2002 to allow countries to overfly other nations freely.

President Trump will be pulling the United States out of the Open Skies Treaty, an agreement between more than 30 countries that allow for those involved to fly in each other’s air spaces, a senior administration official confirmed to Fox News. The New York Times first reported that Trump was planning to withdraw from the agreement, worrying NATO member nations who are concerned that once the U.S. is out, Russia will block their flights, which provide valuable surveillance of their own borders.

U.S. officials have warned that Russia had been violating the treaty already by not allowing flights over areas where military exercises were taking place or sites where Russia had nuclear weapons deployed. Each nation in the treaty agrees to make all its territory available for surveillance flights.

Note also that China is not a signatory.

Not surprisingly, their Democratic Party allies, always ready to aid other countries over U.S. interests, are already blasting this decision by the Trump administration.

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Google steals; distorts search results to hide it

10:18 am

Reason 10,328,467 to stop using Google: Google routinely steals the intellectual property of others for its own benefit, and then distorts all search results to hide any news stories that report on this theft.

The author at the article documents in great detail Google’s history of theft. He then compares search results from Google, Bing, and Yahoo to show how Google then manipulates search results to hide any stories that report these thefts.

The bottom line: Stop using Google! There are plenty of other search engines, some of which, like DuckDuckGo, that protect the privacy of your searches. Google is a corrupt, unethical company that needs to lose business, fast.

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A Jupiter Trojan asteroid spouts a tail

9:54 am

The ATLAS telescope has discovered the first Jupiter Trojan asteroid to spout a tail like a comet.

Early in June 2019, ATLAS reported what seemed to be a faint asteroid near the orbit of Jupiter. The Minor Planet Center designated the new discovery as 2019 LD2. Inspection of ATLAS images taken on June 10 by collaborators Alan Fitzsimmons and David Young at Queen’s University Belfast revealed its probable cometary nature. Follow-up observations by the University of Hawaiʻi’s J.D. Armstrong and his student Sidney Moss on June 11 and 13 using the Las Cumbres Observatory (LCO) global telescope network confirmed the cometary nature of this body.

Later, in July 2019, new ATLAS images caught 2019 LD2 again – now truly looking like a comet, with a faint tail made of dust or gas. The asteroid passed behind the Sun and was not observable from the Earth in late 2019 and early 2020, but upon its reappearance in the night sky in April of 2020, routine ATLAS observations confirmed that it still looks like a comet. These observations showed that 2019 LD2 has probably been continuously active for almost a year.

While ATLAS has discovered more than 40 comets, what makes this object extraordinary is its orbit. The early indication that it was an asteroid near Jupiter’s orbit have now been confirmed through precise measurements from many different observatories. In fact, 2019 LD2 is a special kind of asteroid called a Jupiter Trojan – and no object of this type has ever before been seen to spew out dust and gas like a comet.

There are a number of mysteries here. First, why should it have suddenly become active, since its orbit is relatively circular (similar to Jupiter’s)? Second, it had been assumed that the Jupiter Trojans had been in their orbits for a long time and had long ago vented any ice on their surfaces. This discovery proves that assumption false. It suggests that either this asteroid is a comet that was recently captured, or that things can happen on these asteroids to bring some buried volatiles up to the surface, where they can then vent.

Above all, this asteroid shows that it is dangerous to assume all Jupiter Trojan asteroids are the same. I guarantee when we finally get a close look at a bunch, when the Lucy mission arrives beginning in 2027, the variety will be quite spectacular.

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A call for India to exit the Moon Treaty

9:40 am

The new colonial movement: An op-ed in India today called for that nation to exit the anti-capitalist 1979 Moon Treaty, different than the 1967 Outer Space Treaty in that it specifically outlaws all private ownership in space and was thus only signed by a very small handful of nations.

India has signed but never ratified the Moon Treaty. The U.S., Russia, and China never did.

India must formally exit this agreement, says Dr Chaitanya Giri, a Gateway House Fellow of Space and Ocean Studies Programme, who was earlier affiliated to the Earth-Life Science Institute at Tokyo Institute of Technology and the Geophysical Laboratory at Carnegie Institution for Science.

The problem with the Moon Agreement, Dr Giri told BusinessLine, lies in the Article 4.1, which says that “the exploration and use of the Moon shall be the province of all mankind and shall be carried out for the benefit and in the interests of all countries, irrespective of their degree of economic and scientific development.”

This can be interpreted to mean that if you are a signatory to the agreement, you shall share the fruits of your efforts on the Moon with everybody, whereas if you are not a signatory you won’t have to do so.

The article also notes that, under Trump’s Artemis Accords and executive order allowing for private ownership of any resources extracted in space, India will not be able to partner with the U.S. as long as it remains a signatory to the 1979 Moon Treaty.

That there are now demands in India to leave the Moon Treaty so it can work with the U.S. under Trump’s Artemis Accords also means that those accords are working to convince nations to abandon the Outer Space Treaty’s restrictions on owning land and claiming sovereignty. And they are doing so very quickly.

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British company completes 1st rocket test in the UK in 50 years

9:28 am

Capitalism in space: A British private company has successfully completed the first static fire test of a rocket in Great Britain in a half century.

Skyrora effectively made the UK ready for launching rockets into space after a team successfully built a mobile launch complex and completed a full static fire test with the Skylark L rocket on it – in only five days. Skyrora’s combined achievement also signifies the first vertical static fire test of this magnitude in the UK since the Black Arrow Programme, 50 years ago. The Skylark L rocket could be ready to launch from a British spaceport as early as spring 2021 and the inaugural launch of the low Earth orbital (LEO) Skyrora XL rocket by 2023.

The Skylark L is intended as a suborbital rocket. The XL will the the first orbital rocket. The company’s goal here is to create a rocket with a very inexpensive mobile ground infrastructure, that needs only a concrete pad to launch. Several smallsat American companies have been working towards this goal. The Chinese, using military equipment, have apparently achieved it. They all now have competition from Great Britain.

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First Ariane 6 launch likely delayed to 2021

9:20 am

Because of delays caused by the Wuhan flu panic, the European Space Agency (ESA) and ArianeGroup now expect that the first launch of their new rocket, the Ariane 6, will likely be delayed from late in 2020 to 2021.

The loss of the flight’s payload is also a problem.

Finally, megaconstellation startup OneWeb had booked 30 small broadband satellites on the Ariane 6 maiden flight, but filed for Chapter 11 bankruptcy protection in March, putting the mission in question. Luinaud said if Arianespace can’t find another customer for the Ariane 6 maiden flight this year, it may wait until 2021 to find a payload and avoid flying the rocket empty.

Overall Ariane 6 has been having trouble getting customers. Though it is less expensive that the Ariane 5, it it is entirely expendable and thus remains much more expensive than SpaceX’s Falcon 9. And with the Russians slashing the price of their Russia Proton rocket satellite companies have ample other options. It is for this reason I do not expect Ariane 6 to stick around long. ESA will be quickly forced to replace it with something less expensive and probably reusable.

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Almost lost: The flag that SpaceX astronauts will claim on ISS

9:05 am

The American flag that flew on the first and last shuttle mission and was left on ISS for the next crew flown on an American spacecraft to claim apparently went missing during the decade since the last American shuttle flight, and took several weeks of searching in 2018 for astronauts to find it.

“We looked and looked and looked,” said Tingle. “I talked to my fellow astronauts that were on board the ISS and everybody had a little bit of a different memory on where it could be or where it might be. So we spent probably three or four weeks just kind of scouring in our spare time, trying to find it.”

They did find it, and now it awaits the arrival of the two-person crew of SpaceX’s Dragon capsule, Bob Behnken and Doug Hurley, set to launch on May 27th, the first Americans to launch from American soil on an American rocket in an American spacecraft in almost a decade.

More important: This will be the first flight of any Americans on a private rocket and spacecraft, built and owned by a private commercial company instead of the government. For the capitalistic and free United States, it marks the end of a half century of a government-run Soviet-style space program and a return to capitalism and freedom.

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LauncherOne first launch set for May 24

8:52 am

Capitalism in space: Virgin Orbit has announced that it will attempt the first orbital launch of its LauncherOne rocket this coming Sunday, May 24.

The company is targeting Sunday (May 24) for its Launch Demo mission, with a backup opportunity on Monday (May 25). The four-hour window will open each day at 1 p.m. EDT (1700 GMT), Virgin Orbit representatives announced today (May 20).

Launch Demo will be a huge milestone for Virgin Orbit, which has been developing its air-launch system for five years. That system involves a modified Boeing 747 jet called Cosmic Girl and a 70-foot-long (21 meters) rocket known as LauncherOne, which is capable of delivering about 1,100 lbs. (500 kilograms) to a variety of destinations in low Earth orbit.

If the launch succeeds, than Virgin Orbit will stand ready to begin commercial launches later this year.

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