The thread for space cadets!

The comet will just look like a bright-ish star without a pair of binoculars, so I've read. The pictures showing it with a beautiful tail are real but under heavy magnification.
Seeing the tail is cool - both Hyakutake and Hale-Bopp had visible tails (even in the '90s my eyesight wasn't great and I saw them with the naked eye). Mind you, the sky was mostly clear. I don't anticipate seeing this current comet because:

1. I have no horizon here worth mentioning.

2. It's been a rainy summer so far and nights are usually cloudy.
 
Hale-Bopp was quite a show back in the day.
Yep, I was on the proverbial "Cloud 9". I was taking an astronomy course at the local college at the time, and the next day I told the instructor I'd seen the comet. He was pleased to hear that.

I also mentioned it to a group of strangers standing in line at my grocery store (waaay back in the days before delivery services were available here), and next thing, several of them were excited and wanted to know where to look and when. So I told them and they said they would look that night to see if they could find it.

I read that Hale-Bopp's orbit got tweaked a bit, courtesy of Jupiter. I don't recall if it's shorter now or longer, but it's still going to be over 15,000 years before it comes back. We should be happy to have seen it, because there won't ever be another chance (in person).
 
starting Sunday 5 planets will be visible, along with comet Neowise in the west after sunset, and a meteor shower. Mercury and Venus before sunrise and Jupiter, Saturn and Mars after sunset.

TIL Neptune can be seen with the naked eye and will be in opposition this Sept 11
 
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Neowise's tail is really distinct with the naked eye tonight. It is the sort of thing I am glad I have seen in my life. They are always omens aren't they? But what of this time?
 
Neowise's tail is really distinct with the naked eye tonight. It is the sort of thing I am glad I have seen in my life. They are always omens aren't they? But what of this time?
They are omens of nothing. That's superstition with no basis in fact.

But given all the rain and cloudy nights we've had here (and will have more of tonight), I doubt I'll be seeing this comet myself. :(
 
Definitely gonna grab the binocs and head outside at sunset

Since our ancestors have been around with means of communication for probably a million years or more, many comets have been seen and undoubtedly accompanied nasty situations on occasion. Some flood myths speak of a war in heaven involving a dragon which could refer to the comet's tail, and researchers have discovered a crater under the ice sheet in Greenland that might date to the sea rise around the Younger Dryas ~12k ago. The etymology of the word dragon is interesting with variants all over the world.
 
Neowise's tail is really distinct with the naked eye tonight. It is the sort of thing I am glad I have seen in my life. They are always omens aren't they? But what of this time?
The American Gestapo showed up in Portland and became official, with plans to go nationwide
 
It's a bit disappointing that nobody has mentioned the 51st anniversary of the Moon landing.

I'm watching a batch of documentaries on BBC Earth to celebrate.
 
People made the 20th of July into ‘Friendship day’ in order to make up a holiday and usually it overshadows the moon landing. In fact it was chosen because it was the date of the first landing on the moon.
 
Neowise's tail is really distinct with the naked eye tonight. It is the sort of thing I am glad I have seen in my life. They are always omens aren't they? But what of this time?
We were lucky this time, but the next one will prise the sheeted dead from the iron-hard ground.
 
Comets aren't that scary, but these are!
Bacteria are deadlier and more resilient when exposed to microgravity. In space, bacteria seem to become more resistant to antibiotics, are more lethal, and remain that way for a short time after returning to Earth, compared with bacteria that never left Earth.

Katarzyna Schiwon et al, Comparison of Antibiotic Resistance, Biofilm Formation and Conjugative Transfer of Staphylococcus and Enterococcus Isolates from International Space Station and Antarctic Research Station Concordia,
Microbial Ecology, Vol. 65, pp. 638–651, (2013).

Rachel Gilbert et al, Spaceflight and simulated microgravity conditions increase virulence of Serratia marcescens in the Drosophila melanogaster infection model,
npj Microgravity Vol. 6, No. 4 (2020).
https://www.nature.com/articles/s41526-019-0091-2
 
SpaceX safely returned Bob and Doug from the ISS. The company is also looking to raise more money at $270 a share, which is a decent jump from the last evaluation at $230.

Rocket Lab traced their failure to basically bad work instructions - it appeared they didn't properly torque/stake/safety wire an electrical connector which came loose during flight.

The head of Roscosmos has come out and said he won't participate in the Artemis program with NASA, JAXA and ESA and will instead partner with China on a future moon effort. He also threw shade at SpaceX/NASA about Crew Dragon being unproven despite two successful test flights and one recent high-profile Soyuz abort.
 
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CLOSER TO TAKEOFF

Virgin Galactic says powered flights coming this fall; Branson expected to fly in early 2021

Copyright © 2020 Albuquerque Journal

BY KEVIN ROBINSON-AVILA

JOURNAL STAFF WRITER

Virgin Galactic expects to begin powered test flights from Spaceport America in southern New Mexico this fall, paving the way to fly company founder Sir Richard Branson to space in early 2021, company executives said during a second-quarter earnings call Monday afternoon. Since May, the company has conducted two glide flights over the spaceport with its passenger rocket, the VSS Unity, allowing Virgin Galactic teams to collect key data on performance while providing critical experience for the two spaceship pilots in the cockpit. On those flights, the Unity was carried on the underbelly of the mothership, VMS Eve, to about 50,000 feet before breaking away to glide back down to the spaceport runway.

But this fall, the company plans to conduct two powered flights, whereby the Unity will fire up its rocket motors after breaking away from Eve to shoot to the edge of space at 50 miles up, said Virgin Galactic Chief Space Officer George Whitesides on Monday.

“We’re now preparing for the next stage of powered flight testing,” Whitesides told conference


ajax-request.php
zoom_in.png

Virgin Galactic on Monday morning unveiled this design mock-up of a new supersonic vehicle that it is currently developing for rapid air travel across the globe. COURTESY OF VIRGIN GALACTIC


call participants.

The first powered flight will again only include two test pilots. But the second flight will carry four mission specialists in the passenger cabin, where paying tourists will eventually be seated for the ride to space. That passenger crew of company employees will evaluate all cabin operations during flight, Whitesides said.

Then, assuming both powered flights yield expected results, the company will fly Branson to space, said Virgin Galactic CEO Michael Colglazier.

“Safety remains the top priority,” Colglazier said. “If all goes well, then we anticipate Sir Richard Branson to be on a powered flight in the first quarter of 2021.”

Branson’s trip to suborbit would kick off the company’s long-awaited commercial operations, allowing up to six paying passengers at a time to fly to space, where they’ll be able to float for a few minutes in microgravity and view the Earth’s curvature.

To date, 600 customers have paid up to $250,000 each for the anticipated space adventure.

Another 700 people have put down $1,000 deposits to be first in line to buy tickets when the company reopens sales for seats on the rocket, Whitesides said. That’s up from 400 people that had made deposits as of last March.

The coronavirus has slowed Virgin Galactic’s progress in recent months as the company abides by strict safety protocols, Whitesides said. That’s limited the number of people that can be onsite at the spaceport, and at company headquarters in California, where Virgin Galactic’s manufacturing subsidiary, The Spaceship Company, is now building two more passenger rockets for operation at the spaceport.

But the company continues its march to commercial launch, achieving key milestones during the second quarter, Whitesides said. That includes:

■ Near completion of the second passenger rocket in California, with ground testing on that ship to begin this fall. About 75% of parts fabrication is also finished for the third rocket, with full assembly of that vehicle expected next year.

■ Three more Federal Aviation Administration requirements were met for FAA approval of commercial operations, meaning 27 of the 29 needed elements have been achieved. “When we complete the remaining elements, we’ll be cleared to fly customers to space,” Whitesides said.

■ The company finished construction and received a certificate of occupancy for the third floor of Virgin Galactic’s “Gateway to Space” building at Spaceport America. That’s where all training and flight preparation for customers will take place.

The company is also moving forward on future commercial ventures. That includes working with NASA to line up a pipeline of paying customers for flights to the International Space Station, and development of supersonic vehicles that can provide high-speed, point-to-point travel across the globe.

The company already signed up 12 paying customers for travel to the ISS, which will include end-to-end training to prepare them for the trip. Some of that training will take place at Spaceport America, Whitesides said.

And Virgin Galactic also revealed an initial design concept Monday morning for its future high-speed vehicle, which is expected to travel at three times the speed of sound to potentially transport people from Los Angeles to Tokyo in just two hours, and from New York to London in one. The company announced a new memorandum of understanding with Rolls-Royce to help build propulsion systems for the aircraft.

“Those vehicles will represent a paradigm shift in human air travel,” Whitesides said. “It will drastically cut travel times.”

Whitesides is leading the efforts to build those future operations as the company’s new chief space officer. He stepped down as CEO on July 20, allowing Colglazier, a former Disney executive, to take the reins.

The company reported a $63 million net loss during the second quarter as it continues to prepare for commercial launch. But it still has substantial funds to continue moving forward, with $360 million in cash and cash equivalents as of June 30, said Chief Financial Officer Jon Campagna.
 
So this is the shape of the heliosphere?
heliosphere.jpg

I do not understand it. The sun gives out stuff in all directions, and we end up surrounded by a protective magnetic bubble that’s probably shaped like a... deflated croissant/spleen/stomach depending how you like you analogies. How does it end up this weird shape without a strong external force misshaping it? Or is there a strong external force?
Paper NASA article
 
CLOSER TO TAKEOFF

Virgin Galactic says powered flights coming this fall; Branson expected to fly in early 2021

Copyright © 2020 Albuquerque Journal

BY KEVIN ROBINSON-AVILA

JOURNAL STAFF WRITER

Virgin Galactic expects to begin powered test flights from Spaceport America in southern New Mexico this fall, paving the way to fly company founder Sir Richard Branson to space in early 2021, company executives said during a second-quarter earnings call Monday afternoon. Since May, the company has conducted two glide flights over the spaceport with its passenger rocket, the VSS Unity, allowing Virgin Galactic teams to collect key data on performance while providing critical experience for the two spaceship pilots in the cockpit. On those flights, the Unity was carried on the underbelly of the mothership, VMS Eve, to about 50,000 feet before breaking away to glide back down to the spaceport runway.

But this fall, the company plans to conduct two powered flights, whereby the Unity will fire up its rocket motors after breaking away from Eve to shoot to the edge of space at 50 miles up, said Virgin Galactic Chief Space Officer George Whitesides on Monday.

“We’re now preparing for the next stage of powered flight testing,” Whitesides told conference


ajax-request.php
zoom_in.png

Virgin Galactic on Monday morning unveiled this design mock-up of a new supersonic vehicle that it is currently developing for rapid air travel across the globe. COURTESY OF VIRGIN GALACTIC


call participants.

The first powered flight will again only include two test pilots. But the second flight will carry four mission specialists in the passenger cabin, where paying tourists will eventually be seated for the ride to space. That passenger crew of company employees will evaluate all cabin operations during flight, Whitesides said.

Then, assuming both powered flights yield expected results, the company will fly Branson to space, said Virgin Galactic CEO Michael Colglazier.

“Safety remains the top priority,” Colglazier said. “If all goes well, then we anticipate Sir Richard Branson to be on a powered flight in the first quarter of 2021.”

Branson’s trip to suborbit would kick off the company’s long-awaited commercial operations, allowing up to six paying passengers at a time to fly to space, where they’ll be able to float for a few minutes in microgravity and view the Earth’s curvature.

To date, 600 customers have paid up to $250,000 each for the anticipated space adventure.

Another 700 people have put down $1,000 deposits to be first in line to buy tickets when the company reopens sales for seats on the rocket, Whitesides said. That’s up from 400 people that had made deposits as of last March.

The coronavirus has slowed Virgin Galactic’s progress in recent months as the company abides by strict safety protocols, Whitesides said. That’s limited the number of people that can be onsite at the spaceport, and at company headquarters in California, where Virgin Galactic’s manufacturing subsidiary, The Spaceship Company, is now building two more passenger rockets for operation at the spaceport.

But the company continues its march to commercial launch, achieving key milestones during the second quarter, Whitesides said. That includes:

■ Near completion of the second passenger rocket in California, with ground testing on that ship to begin this fall. About 75% of parts fabrication is also finished for the third rocket, with full assembly of that vehicle expected next year.

■ Three more Federal Aviation Administration requirements were met for FAA approval of commercial operations, meaning 27 of the 29 needed elements have been achieved. “When we complete the remaining elements, we’ll be cleared to fly customers to space,” Whitesides said.

■ The company finished construction and received a certificate of occupancy for the third floor of Virgin Galactic’s “Gateway to Space” building at Spaceport America. That’s where all training and flight preparation for customers will take place.

The company is also moving forward on future commercial ventures. That includes working with NASA to line up a pipeline of paying customers for flights to the International Space Station, and development of supersonic vehicles that can provide high-speed, point-to-point travel across the globe.

The company already signed up 12 paying customers for travel to the ISS, which will include end-to-end training to prepare them for the trip. Some of that training will take place at Spaceport America, Whitesides said.

And Virgin Galactic also revealed an initial design concept Monday morning for its future high-speed vehicle, which is expected to travel at three times the speed of sound to potentially transport people from Los Angeles to Tokyo in just two hours, and from New York to London in one. The company announced a new memorandum of understanding with Rolls-Royce to help build propulsion systems for the aircraft.

“Those vehicles will represent a paradigm shift in human air travel,” Whitesides said. “It will drastically cut travel times.”

Whitesides is leading the efforts to build those future operations as the company’s new chief space officer. He stepped down as CEO on July 20, allowing Colglazier, a former Disney executive, to take the reins.

The company reported a $63 million net loss during the second quarter as it continues to prepare for commercial launch. But it still has substantial funds to continue moving forward, with $360 million in cash and cash equivalents as of June 30, said Chief Financial Officer Jon Campagna.

Virgin Galactic is floundering and that earnings call lead to a slash in their stock price as it was revealed they were losing even more money than everyone thought they were and they are also delaying the beginning of service by yet another year.

I don't know if I mentioned it here at the time but Virgin Orbit (VG's sister company for unmanned orbital payloads) had a test launch that failed. They haven't given root cause but I believe it was a pogo oscillation that broke it. Pogo is one of the hardest technical challenges to deal with as it's very difficult to simulate or test for outside of launch. Both the Saturn V and the Space Shuttle were nearly undone by pogo - with the Saturn V having serious problems with it right up until at least Apollo 13. In the movie, when one of the engines went out during launch, the problem that caused that was pogo.

So this is the shape of the heliosphere?
heliosphere.jpg

I do not understand it. The sun gives out stuff in all directions, and we end up surrounded by a protective magnetic bubble that’s probably shaped like a... deflated croissant/spleen/stomach depending how you like you analogies. How does it end up this weird shape without a strong external force misshaping it? Or is there a strong external force?
Paper NASA article
Well interference from the planets (particular Jupiter which has a monster magnetic field) causes a lot of this I assume. There is also interstellar dust and particles that bombard it from outside the solar system and would also cause it to distort.


-----------------


As I said in the prediction thread, ULA won a contract for 60% of the USAF/USSF's business over the next decade and SpaceX won 40%. The losers were Northrop Grumman and Blue Origin who are both expected to protest the contract. Also the SpaceX fanbois are already raging at how 'unfair' the Air Force was in this contract despite SpaceX having put together a terrible proposal during Phase I that nearly put them out of the running altogether.
 
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