How would an MRI react to an small air pocket/void? Is it possible sometimes there are voids in bones?

If the moon were only 1 pixel wide... joshworth.com/dev/pixelspace/pixelspac... (brilliant scale model of the solar system)

Isn't "your height" a reasonable stopping distance? Guess it depends on how many twirls around you want!

I love all the informative (only) posts .. but, something special about the ones that have a twist at the end! 💙

Well, we fixed the Hubble after launch, let's go bring another RTG [glances at current distance of V1] - so, a year, huh? Hope they can extend that more with other power savings!

Ah, thanks!

Very interesting! I'm assuming from the bridge in the picture, large boats don't use this .. do any boats (kayaks, etc)?

Of course, "we" non billionaires think they should stick to the lane of *enriching themselves*. Or, you know, using their resources to eradicate many of the ills of society (poverty, disease, etc). Geeze, the strawman argument.

when are they going to add a fifth galilean moon

Four Teenage Mutant Ninja Turtles .. Four Galilean Moons .. balance!

This one clips hard this week.

Or slightly closer?!?!? (I'll see myself out.)

Design of a sundial on a white paper. Vertical hour lines, 2 arc scales, tilted calendar scale, and a plot of the equation of time.

Hand holding the paper sundial, with a thread hanging from the calendar.

🔭 🧪 #EduSky
New version of my 'Capuchin' paper #sundial
More detailed calendar, declination scale, meridian elevation scale.
This altitude sundial dates from the 16th c.
Can be printed on book-sized paper and slipped in a book. Add a weighted thread with a bead.

1/2

😆😆😆

"Pharisees? What is this Jesus Christ Superstar, *M.D.* in here?" - me trying out something for my "tight-five", if I start my stand up career.

And during the boosts!

I’ve been trying to figure out why I’ve been obsessed with the Artemis II mission — more obsessed than I usually am with NASA stuff.

This explains it!

(IG: morganevelyncook)

scatter plot on a light blue background, showing as orange dots the positions of the Sun toward south, at different labeled dates, at the same hour. The curve is shaped as an 8.

polar diagram with positions of the 4 rocky planets around the Sun, over the course of several months in 2026, every 10 days. Blue background.

polar diagram with positions of gaseous planets around the Sun, over the course of 10 years, every 2 years. Blue background.

Trying my hand at the #astropy #Python package for #astronomy with some *very* basic scripts.
Just learning to retrieve altaz and heliocentric coordinates, so far.

Scripts available on my website:
www.astrolabe-science.fr/graphiques-a...

So these were "point-stars" .. and the 'zooming' didn't shrink the stars? Thinking having small "galaxy shapes" spread around the sheet .. then same size shapes, but distances are expanded or contacted for the second sheet. Is that the basic idea? (drawing on balloon .. then galaxies expand too!)

Ah, thanks, I'll look into this!

I didn't until you mentioned it 😄

I'm following a spacecraft (like Europa Clipper) and plotting *eccentricity* over time .. as it gets close to Jupiter, the orbit will be greatly perturbed and I'll need oscalating calculations. Any chance you could point me to a resource for this? (Am using python - but can adapt equations for code)

Many thanks, I'll take a look (and probably jump right down a rabbit hole 😄🫤)!

Ah, that's what Io's "footprint" is! - This explains an annotation I saw on a JWST image (and never looked up) - thank you!

It would seem
that I am losing patience,
for when the man in front of me
asked why I was masked
I promptly replied:
“so I can outlive my enemies,”
and based on the expression
the man made in response
it would seem
that was one of my better
responses to that question.

Artemis 2 was the furthest human voyage from Earth. Per the final JPL Horizons trajectory I estimate the max distance from the geocenter was 413145 km at 2304 UTC Apr 6 (about 4 km less and 1 min later than PAO's report at the time). (1 / n ).....

What a great idea for this calculation!! Kudos 🫡

I meant to share this in January, but, well things happen!

Here's a list of enhancements added to SkyCalPro. A lot done. Perhaps there are some calculations in there you didn't realise?

At 12:00 the hands both swing up to the top? If so, then I couldn't have anything that I have to do between 11:58 am and 12:02 pm .. everyday .. for the rest of my life!