xkcd #3219: Planets and Bright Stars

Title text:

An old astronomer trick for distinguishing the Sun from other stars is to take multiple photos a few minutes apart and overlay them, making the Sun stand out due to its high proper motion.

Transcript:

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Source: https://xkcd.com/3219/

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xkcd #3218: Subduction Retrieval

Title text:

Aww, the oceanic crust and the continental crust are getting married!

Transcript:

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Source: https://xkcd.com/3218/

explainxkcd for #3218

The bot appears to be down, so it's now up to me again like in the old days to post new xkcd comics here. :D

As always, you are permitted to call one person for guidance, but that person must be a grandparent.

https://explainxkcd.com/3217/

xkcd #3216: Bazookasaurus

Title text:

In contrast to the deep booming sound associated with the cannon in pop culture depictions, recent studies show it actually made more of a 'toot toot!' noise.

Transcript:

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Source: https://xkcd.com/3216/

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xkcd #3215: Solar Warning

Title text:

This replaces the previous solar activity watch, which was issued last month when the sun took off its sunglasses.

Transcript:

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Source: https://xkcd.com/3215/

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xkcd #3214: Electric Vehicles

Title text:

Now that I've finally gotten an electric vehicle, I'm never going back to an acoustic one.

Transcript:

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Source: https://xkcd.com/3214/

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xkcd #3213: Dental Formulas

Title text:

I mean, half of these are undefined. And your multiplication dots are too low; they look like decimal points.

Transcript:

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Source: https://xkcd.com/3213/

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xkcd #3212: Little Red Dots

Title text:

After a lot of analysis, I've determined that they're actually big red dots; they're just very far away.

Transcript:

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Source: https://xkcd.com/3212/

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xkcd #3211: Amperage

Title text:

Oh, and do you have any tips on how to vacuum up copper that's melted into your carpet?

Transcript:

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Source: https://xkcd.com/3211/

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xkcd #3210: Eliminating the Impossible

Title text:

'If you've eliminated a few possibilities and you can't think of any others, your weird theory is proven right' isn't quite as rhetorically compelling.

Transcript:

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Source: https://xkcd.com/3210/

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xkcd #3209: Plums

Title text:

My icebox plum trap easily captured William Carlos Williams. It took much less work than the infinite looping network of diverging paths I had to build in that yellow wood to ensnare Robert Frost.

Transcript:

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Source: https://xkcd.com/3209/

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xkcd #3208: SNEWS

Title text:

People say setting of fireworks indoors is dangerous, but I looked at their energy release and it's like 10^-40 foe; totally negligible.

Transcript:

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Source: https://xkcd.com/3208/

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xkcd #3207: Bad Map Projection: Zero Declination

Title text:

'The zero line in WMM2025 passes through a lot of population centers; I wonder what year the largest share of the population lived in a zone of less than 5° of declination,' he thought, derailing all other tasks for the rest of the day.

Transcript:

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Source: https://xkcd.com/3207/

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xkcd #3206: Installation

Title text:

Do YOU remember the skylight being this big?

Transcript:

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Source: https://xkcd.com/3206/

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xkcd #3205: Carbon Dating

Title text:

This dating is corroborated by the presence of stone tools at the site, rather than earlier and less effective helium ones.

Transcript:

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Source: https://xkcd.com/3205/

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xkcd #3204: Dinosaurs And Non-Dinosaurs

Title text:

Staplers are actually in Pseudosuchia, making them more closely related to crocodiles than to dinosaurs.

Transcript:

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Source: https://xkcd.com/3204/

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xkcd #3203: Binary Star

Title text:

The discovery of a fully typographical star system comes with a big asterisk.

Transcript:

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Source: https://xkcd.com/3203/

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xkcd #3202: Groundhog Day Meaning

Title text:

Originally, the ceremony used a variety of rodents and mustelids, but over time most people agreed it made sense to standardize on a specific individual ground squirrel in Pennsylvania.

Transcript:

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Source: https://xkcd.com/3202/

explainxkcd for #3202