Astronomy and Space

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bolo
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Re: Astronomy and Space

Post by bolo » Sat Feb 11, 2023 9:57 pm

That surely raises some questions about the Soyuz leak not really being due to a micrometeoroid hit.

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Re: Astronomy and Space

Post by Pishwish » Sat Feb 11, 2023 10:32 pm

At the time of the Soyuz leak, Anatoly Zak tweeted
In Russian space industry, the excuse "a meteor caused my spacecraft failure" (in this case, the Soyuz coolant leak) is one step away from "my dog eat my homework"...

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Gfamily
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Re: Astronomy and Space

Post by Gfamily » Sun Feb 12, 2023 1:51 pm

Last night I got some images of the comet as it went past Mars (horribly overexposed, but otherwise the comet wasn't visible)
Comet Mars 1500px.jpg
Comet Mars 1500px.jpg (177.84 KiB) Viewed 10933 times
ETA
Not literally "past Mars", of course - it was about 66 million km from Earth, and 180 million km from Mars
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Re: Astronomy and Space

Post by shpalman » Thu Feb 16, 2023 4:02 pm

having that swing is a necessary but not sufficient condition for it meaning a thing
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Re: Astronomy and Space

Post by basementer » Mon Feb 27, 2023 6:10 pm

I see there are widespread reports of Auroral displays visible as far South as Cornwall last night. Got to be worth popping outside tonight to see if they continue.
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Re: Astronomy and Space

Post by JQH » Thu Mar 02, 2023 4:30 pm

A newly discovered form of salty ice may be the cause of the red cracks on Europa.

https://earthsky.org/space/salty-ice-hy ... 9jxF0P-Qtk
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Grumble
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Re: Astronomy and Space

Post by Grumble » Thu Mar 02, 2023 4:48 pm

Mmm, salty cracks
where once I used to scintillate
now I sin till ten past three

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Martin Y
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Re: Astronomy and Space

Post by Martin Y » Thu Mar 02, 2023 6:24 pm

Grumble wrote:
Thu Mar 02, 2023 4:48 pm
Mmm, salty cracks
I liked their early stuff.

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Re: Astronomy and Space

Post by jaap » Tue Mar 07, 2023 9:01 pm


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Re: Astronomy and Space

Post by Gfamily » Wed Mar 08, 2023 5:49 pm

Test launch of the Terran 1 rocket in about 30 minutes (planned for 18:20 GMT).
First launch of a 3D printed rocket.
According to an article I read 3D printing the engines allows them to reduce the number of engine components by 99%.

If successful it'll beat SpaceX's Starship rocket to being the first Methane powered rocket to achieve orbit.

No Payload this time.
https://www.youtube.com/watch?v=EFxhmAF840s
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
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Gfamily
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Re: Astronomy and Space

Post by Gfamily » Wed Mar 08, 2023 6:06 pm

Gfamily wrote:
Wed Mar 08, 2023 5:49 pm
Test launch of the Terran 1 rocket in about 30 minutes (planned for 18:20 GMT).
First launch of a 3D printed rocket.
According to an article I read 3D printing the engines allows them to reduce the number of engine components by 99%.

If successful it'll beat SpaceX's Starship rocket to being the first Methane powered rocket to achieve orbit.

No Payload this time.
https://www.youtube.com/watch?v=EFxhmAF840s
Launch now scheduled for 19:00 GMT
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!

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Grumble
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Re: Astronomy and Space

Post by Grumble » Sat Mar 11, 2023 6:24 pm

Gfamily wrote:
Wed Mar 08, 2023 6:06 pm
Gfamily wrote:
Wed Mar 08, 2023 5:49 pm
Test launch of the Terran 1 rocket in about 30 minutes (planned for 18:20 GMT).
First launch of a 3D printed rocket.
According to an article I read 3D printing the engines allows them to reduce the number of engine components by 99%.

If successful it'll beat SpaceX's Starship rocket to being the first Methane powered rocket to achieve orbit.

No Payload this time.
https://www.youtube.com/watch?v=EFxhmAF840s
Launch now scheduled for 19:00 GMT
Hopefully going to launch soon, T-20ish right now
where once I used to scintillate
now I sin till ten past three

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Grumble
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Re: Astronomy and Space

Post by Grumble » Sat Mar 11, 2023 6:27 pm

In fact T-20 exactly. It’s on hold. Ah well, this is the “fun” of watching live rocket launches.
where once I used to scintillate
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Gfamily
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Re: Astronomy and Space

Post by Gfamily » Sat Mar 11, 2023 7:01 pm

Grumble wrote:
Sat Mar 11, 2023 6:27 pm
In fact T-20 exactly. It’s on hold. Ah well, this is the “fun” of watching live rocket launches.
Clock running again - currently at 34 minutes - though there will probably be some holds planned
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!

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Gfamily
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Re: Astronomy and Space

Post by Gfamily » Sat Mar 11, 2023 7:48 pm

And... not this time either
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!

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Gfamily
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Re: Astronomy and Space

Post by Gfamily » Sat Apr 08, 2023 3:52 pm

FtL6imNWwAAcS_Q.jpeg
FtL6imNWwAAcS_Q.jpeg (53.65 KiB) Viewed 10356 times
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!

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Brightonian
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Re: Astronomy and Space

Post by Brightonian » Fri Apr 14, 2023 9:54 pm

Sloth just wanted to see the world*

https://www.reddit.com/r/europe/comment ... to_ariane/

* from a distance

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Re: Astronomy and Space

Post by dyqik » Fri Apr 14, 2023 10:36 pm

Brightonian wrote:
Fri Apr 14, 2023 9:54 pm
Sloth just wanted to see the world*

https://www.reddit.com/r/europe/comment ... to_ariane/

* from a distance
One of colleagues is there for the launch, because they helped build the Submillimeter Wave Instrument on it.

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Re: Astronomy and Space

Post by Martin_B » Wed Apr 19, 2023 11:48 pm

Short of starting it's own thread, this seems the best place for talking about eclipses.

Is anyone else going to see the eclipse today? I'm in Perth, so only getting ~77% of the total eclipse, but at least I'll actually see the eclipse (unlike the 1999 total eclipse I "saw" in Cornwall which was too cloudy to actually see the sun!)
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Gfamily
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Re: Astronomy and Space

Post by Gfamily » Thu Apr 20, 2023 8:29 am

A relatively rare one, as it was a hybrid eclipse, which changed from an annular eclipse to a total eclipse and back again.

Here's a neat view from a weather satellite
https://twitter.com/simon_sat/status/16 ... 7231290368
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!

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Grumble
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Re: Astronomy and Space

Post by Grumble » Thu Apr 20, 2023 8:40 am

Gfamily wrote:
Thu Apr 20, 2023 8:29 am
A relatively rare one, as it was a hybrid eclipse, which changed from an annular eclipse to a total eclipse and back again.

Here's a neat view from a weather satellite
https://twitter.com/simon_sat/status/16 ... 7231290368
That’s a great clip.
where once I used to scintillate
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Re: Astronomy and Space

Post by dyqik » Thu Apr 20, 2023 10:13 am

I saw some solar observing instrumentation yesterday that will fly during the next eclipse, looking out the window of a plane, to image and do spectroscopy of the corona.

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bolo
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Re: Astronomy and Space

Post by bolo » Thu Apr 20, 2023 1:41 pm

oops

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Re: Astronomy and Space

Post by dyqik » Thu Apr 20, 2023 2:05 pm

Rapid Unscheduled Disassembly Event. Or RUDE.

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Re: Astronomy and Space

Post by JQH » Thu Apr 20, 2023 3:11 pm

I assume that is a reference to this
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