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SPACE - random thread about space stuff

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Re: SPACE - random thread about space stuff

Post by Daehawk »

https://www.accuweather.com/en/weather- ... y/70006605

Leonid meteor shower: Saturday night's peak to spark 20 meteors per hour in the night sky
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Re: SPACE - random thread about space stuff

Post by stessier »

Holman wrote:
Tue Nov 13, 2018 11:46 am
This is cool.



I've never seen a "launch visibility map" before.
That would be so cool - I'm up anyway. Sadly, outside the viewing area - and likely socked in by clouds/rain anyway.
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Re: SPACE - random thread about space stuff

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Flat Earthers

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Re: SPACE - random thread about space stuff

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Re: SPACE - random thread about space stuff

Post by raydude »

A friend of mine from grad school works on Entry, Landing, and Descent for Mars missions at Lockheed, including Insight. He shared this great comic by The Oatmeal about Insight's landing on Mars on Cyber Monday.

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Re: SPACE - random thread about space stuff

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I take issue with his 12g calculations, as the weight might change, but the mass would not. :ugeek:

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Re: SPACE - random thread about space stuff

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Neat little story. Something most people let slip right by is that Mars DOES have an atmosphere.....how else would a parachute work? :)
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Re: SPACE - random thread about space stuff

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Anyone that watched Total Recall.

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Re: SPACE - random thread about space stuff

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Isgrimnur wrote:
Wed Nov 21, 2018 3:22 pm
Anyone that watched Total Recall.
That was just before the alien teraformer fixed the atmosphere
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Re: SPACE - random thread about space stuff

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Another successful Mars landing. :dance:
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Re: SPACE - random thread about space stuff

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Re: SPACE - random thread about space stuff

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NASA Catches Glimpse Of Hard-Charging Curiosity Rover Just Before InSight’s Communications Go Dark
According to panicking officials at NASA’s Jet Propulsion Laboratory, the new InSight lander successfully touched down on the Red Planet Monday, transmitted a few seconds of footage showing the Mars Curiosity rover charging hard in its direction, and then went completely dark. “In a series of blurry images received just before we lost all contact with the lander, we can see Curiosity suddenly appearing in the distance, cresting a dune, and advancing at full speed toward InSight,” said the mission’s principal investigator, W. Bruce Banerdt, explaining that the spacecraft had landed 370 miles north of Curiosity’s last known location, and that his team had no idea how the rover found the landing site or why it apparently rammed into InSight with maximum force.
There can be only one Mars bot! :tjg:
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Re: SPACE - random thread about space stuff

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lol
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Re: SPACE - random thread about space stuff

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Re: SPACE - random thread about space stuff

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:lol:

That got a chuckle out of me.
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Re: SPACE - random thread about space stuff

Post by Holman »


do you guys realize there’s a planet in our solar system entirely inhabited by robots
Much prefer my Nazis Nuremberged.

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Re: SPACE - random thread about space stuff

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Mars panorama

https://www.360cities.net/image/mars-pa ... r-day-2082

Click and drag to pan.
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Re: SPACE - random thread about space stuff

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Re: SPACE - random thread about space stuff

Post by Kraken »

There are 15,000 stars within 100 light years of Earth? I did not know that.

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Re: SPACE - random thread about space stuff

Post by raydude »

I've been busy the last few days, so I forgot to post that OSIRIS-REx arrived at Bennu on Monday.

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Re: SPACE - random thread about space stuff

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The sound of wind on Mars

I never once thought of it before but why dont probes have some kinda high tech mic on them to do this?
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Re: SPACE - random thread about space stuff

Post by Unagi »

Daehawk wrote:
Sat Dec 01, 2018 5:49 pm
Mars panorama

https://www.360cities.net/image/mars-pa ... r-day-2082

Click and drag to pan.
https://www.360cities.net/image/mars-pa ... r-day-1228

some weird ash like stuff on the ground in this shot....

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Re: SPACE - random thread about space stuff

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Daehawk wrote:
Fri Dec 07, 2018 8:38 pm
The sound of wind on Mars

I never once thought of it before but why dont probes have some kinda high tech mic on them to do this?
Some do when appropriate. For example, there was a mic package on the Mars Polar Lander that was lost in 1999, as well as on the Huygens probe.

Mars Microphone History
The idea of placing a microphone on Mars was first suggested by Planetary Society Founder Carl Sagan. Sagan wrote in a 1996 letter to NASA, "Even if only a few minutes of Martian sounds are recorded from this first experiment, the public interest will be high and the opportunity for scientific exploration real."
Sounds of an Alien World
Audio data collected by the Huygens Atmospheric Structure Instrument (HASI), which includes an acoustic sensor, during Huygens' descent, 14 January 2005.
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Re: SPACE - random thread about space stuff

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Re: SPACE - random thread about space stuff

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Re: SPACE - random thread about space stuff

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Daehawk wrote:
Fri Dec 07, 2018 8:38 pm
The sound of wind on Mars

I never once thought of it before but why dont probes have some kinda high tech mic on them to do this?
It would be of limited scientific value, but it might be interesting to the public if a future lander was equipped with a mic and a nice speaker, so that it could play music or some sort of prerecorded speech from the speaker while recording it from a mic, so people could hear how the thin atmosphere would make music or language sound different.
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Re: SPACE - random thread about space stuff

Post by Fireball »

Kraken wrote:
Fri Dec 07, 2018 2:55 pm
There are 15,000 stars within 100 light years of Earth? I did not know that.
Most of them are very cool red dwarves.
Wed Oct 20, 2004 1:17 am
Zarathud: The sad thing is that Barak Obama is a very intelligent and articulate person, even when you disagree with his views it's clear that he's very thoughtful. I would have loved to see Obama in a real debate.
Me: Wait 12 years, when he runs for president. :-)

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Re: SPACE - random thread about space stuff

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I loved that show.
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Re: SPACE - random thread about space stuff

Post by Sepiche »

Fireball wrote:
Mon Dec 10, 2018 4:12 pm
Daehawk wrote:
Fri Dec 07, 2018 8:38 pm
The sound of wind on Mars

I never once thought of it before but why dont probes have some kinda high tech mic on them to do this?
It would be of limited scientific value, but it might be interesting to the public if a future lander was equipped with a mic and a nice speaker, so that it could play music or some sort of prerecorded speech from the speaker while recording it from a mic, so people could hear how the thin atmosphere would make music or language sound different.
IIRC the Mars 2020 lander will be equipped with a mic at least. Don't think it will have a speaker however.

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Re: SPACE - random thread about space stuff

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Hearing Mars somehow made it feel more moving and personal.
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Re: SPACE - random thread about space stuff

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There is no 'dark' side. just, fyi

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Re: SPACE - random thread about space stuff

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Why would Pink Floyd lie to us?

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Re: SPACE - random thread about space stuff

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Re: SPACE - random thread about space stuff

Post by Unagi »

Unagi wrote:
Mon Dec 10, 2018 8:03 pm
There is no 'dark' side. just, fyi


Isgrimnur wrote:
Mon Dec 10, 2018 9:18 pm
Why would Pink Floyd lie to us?
They wouldn't and they didn't. You just failed to listen to the whole song, dude


"There is no dark side
of the moon really.
Matter of fact
it's all dark."


8-)

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Re: SPACE - random thread about space stuff

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I went out about 1am and looked but could not spot the comet. It was very foggy though and that didn't help.
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Re: SPACE - random thread about space stuff

Post by Kraken »

On Tuesday New Horizons has a blink-and-you'll-miss-it encounter with Ultima Thule, a mysterious Kuiper Belt object that's of interest because it's a cold relic of the solar system -- it has never been heated by the sun. Scientists aren't sure of its shape, its size, or even precisely where it is. Here's a thorough, non-technical mission summary.

Image
In some ways, this event is more difficult than the pass of Pluto.

The object in the viewfinder is almost a hundred times smaller.

New Horizons will get closer than at Pluto, which is good for image detail; but it means that if the pointing is off, the probe could be sending back pictures of empty space!

And this really is a major concern. Because Ultima was only discovered four years ago, its position and movement on the sky are much more uncertain than the coordinates for Pluto.

Hence the importance of the final timing commands uploaded to the spacecraft on Sunday.

And, remember, all this is being done at a distance of 6.62 billion km (4.11 billion miles) from Earth.

At that separation, radio signals take six hours and eight minutes to reach home.

What is more, the data rates are glacial - around 1,000 bits a second.

It will be late on Tuesday before the first of a few choice images in downlinked, and it will be September 2020 until every last scrap of data from the flyby is pulled off New Horizons.

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Re: SPACE - random thread about space stuff

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Re: SPACE - random thread about space stuff

Post by Kraken »

Image

While Americans weren't watching, the Chinese dropped a rover on the far side of the moon. :clap:

Also, OSIRIS-ReX slipped into orbit around Bennu, which is only news because it's really hard to orbit a body that has basically no gravity.

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Re: SPACE - random thread about space stuff

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Time and tide melt the snowman.

There are worlds out there where the sky is burning, where the sea's asleep and the rivers dream, people made of smoke and cities made of song. Somewhere there's danger, somewhere there's injustice and somewhere else the tea is getting cold. Come on, Ace, we've got work to do.
-- The Doctor

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