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DukeofNuke
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Post by DukeofNuke »

I had to read "The Raven" aloud to the class in seventh grade.
When I got to the line 'Quoth the Raven ..." I said it like a parrot;
nev-ER-more.

It got a laugh.

intellectual/hipster/nihilist

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DEyncourt
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Post by DEyncourt »

ISS transiting the Moon:

Image

You must scroll downward to see the article about this.

Here is a video that the astrophotographer took during the time he had set up his cameras to capture this event.

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DukeofNuke
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Post by DukeofNuke »

DEyncourt wrote: Fri Mar 26, 2021 5:32 pm

Where does zodiacal light come from?

Image

You must have VERY DARK skies to see this with the naked eye although it is easier to get such images via photography.

The Bad Astronomer explains how Juno--the spacecraft now in a polar orbit around Jupiter--may have gotten proof of how much of the dust causing zodiacal light MAY have come from Mars.

On its way to Jupiter Juno had to take a circuitous route to get there, in part getting a gravity assist from the Earth and thus spending some time between Earth and the asteroid belt:

Image

While Juno lacks any sort of dust detector--that being not her main mission to Jupiter--an analysis of the dust that Juno intercepted during that route at least shows how there was little dust in the asteroid belt (previously an argument was made that asteroids and other interplanetary debris was the source of the dust causing zodiacal light) BUT there was a lot of dust when she passed through Mars' orbit.

While the Bad Astronomer pointed out the lack of any mechanism for ANY Martian dust to escape from Mars, I forget where I read this but there were articles on how Mars had lost much of its atmosphere in part due to lacking a strong-enough magnetosphere. In effect globs of the Martian atmosphere got stripped from Mars by action of the solar wind. Considering how practically every Martian year the planet gets swamped with large dust storms--sometimes covering nearly all of the planet aside from the polar ice caps--couldn't the solar wind also steal large portions of Martian dust as well? Now lacking any mechanism to get out of Mars' orbit around the Sun, that dust would form a relatively concentrated belt along Mars' orbit.

THIS GUY's PHD thesis was on zodiacal light and interplanetary dust
Image

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ukimalefu
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ukimalefu
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Post by ukimalefu »

Don't forget about Curiosity, still on Mars taking cool pics

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Image

https://gizmodo.com/nasa-s-other-mars-r ... 1846583851

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maurvir
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Post by maurvir »

I still can't past the fact that Mars is becoming "familiar".

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Post by DEyncourt »

DukeofNuke wrote: Tue Mar 30, 2021 9:12 pm

[snip]

THIS GUY's PHD thesis was on zodiacal light and interplanetary dust
Image

May's thesis was handed in 2007. Unfortunately he was wrong partly because he was using the idea that asteroids were the source of the debris causing zodical light. I'm certain that in light of the INDIRECT findings from Juno that May would concede this problem which would require him to to explain why Juno got near to no dust contacts while the probe spent time through the asteroid belt.

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Post by DEyncourt »

"Rocket Launch as Seen from the Space Station".

This supply mission launch was from the Baikonur Cosmodrome in November 2018.

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ukimalefu
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Post by ukimalefu »

https://i.imgur.com/og1IbTm.mp4

video doesn't show when everyone on that boat fell down, hopefully just hitting the floor in their soiled pants

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Post by ukimalefu »

Image

uncouth individual the cameras are here for me, GTFO

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juice
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Post by juice »

That's awesome

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Post by ukimalefu »

Image

July 7, 2015 – The Aeolis Mensae region of Mars, captured by the Mars Express probe.

https://www.flickr.com/photos/europeans ... otostream/

Call it pareidolia, or call me crazy, but I see city ruins

or

I want to believe

-

Nazca lines
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archaeological ruins in the Judean Desert, as seen from Masada fortress
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-

I know, I know. I didn't say I believe, I said I want to.

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ukimalefu
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Post by ukimalefu »

Set down and ready to go

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Now that Ingenuity is separated from Perseverance, it will need to power and heat itself. Ingenuity will draw power from the sun using its onboard solar panels, but its heater will have the tough job of keeping the helicopter warm through the freezing cold nights on Mars, where temperatures can go as low as negative 130 degrees Fahrenheit, according to Bob Balaram, Ingenuity’s chief engineer.

Presuming Ingenuity survives the harsh conditions, the helicopter will aim to take the first powered flight on another planet, which is currently set for “no earlier” than April 11th. NASA outlined the helicopter’s flight zone, which NASA outlined on March 23rd. The plan is for Ingenuity to attempt as many as five test flights within 30 days before settling down on the surface of Mars for eternity.

for eternity... that's quite a long time

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Post by maurvir »

I'm sure that when we settle Mars, someone will drop by and steal it.

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Image

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DukeofNuke
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Post by DukeofNuke »

Image

intellectual/hipster/nihilist

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ukimalefu
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Post by ukimalefu »

Proud parent

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Open the image in a new tab and zoom in.

I love looking at every detail

Such a high resolution, super clear, sharp picture... made by a robot in another planet.

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ukimalefu
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Post by ukimalefu »

Image

We use #Tech4Wildlife for our project developing automated methods of individual ID for brown bears and other wildlife. We use a combination of #cameratrapping, visual observations, and #machinelearning with collaborative partnerships to make this happen.

https://twitter.com/bearid_project

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Post by macnuke »

Beats tagging and putting transmitters on them :up:

There are no illegitimate children...only illegitimate parents.

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ukimalefu
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Post by ukimalefu »

macnuke wrote: Sun Apr 11, 2021 11:24 am

Beats tagging and putting transmitters on them :up:

that's a nice way to think about it

all I could think of was: Bearminator

I'm a nerd

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