It's 1996. I'm eating McDonald's and watching a movie with my best friend. It's 2026. I'm eating McDonald's and watching a movie with my best friend. Life is good.

The happy winner has collected her prize.

I bet a chocolate bar with a student that Sinners would win best picture...

Every March, I write an article for @chemistryworld.com that is dedicated to the role of women in science. This year, I decided to take a more optimistic and fun approach towards this issue, focusing on how women have always figured in chemical practice! www.chemistryworld.com/opinion/chem...

I feel ornery.

@therealestjmark.bsky.social a relic!

Old newspaper clipping of me giving a talk at the observatory in Planetario Alfa, 22 years ago.

Old newspaper clipping of me giving a talk at the observatory in Planetario Alfa, 22 years ago.

Aren't we all?

Well, nobody's perfect!

Jeremy Irons *and* a plagiarism storyline? S4 of The Morning Show was made for me.

Always ready for her close up.

Smiling at food (2025).

I don't look a day over 75... #SpotifyWrapped.

#SpotifyWrapped

That feeling when you find that one paper that pulls everything together...

Wordle 1,597 2/6* ⬛⬛🟨🟨⬛ 🟩🟩🟩🟩🟩

Happy annual viewing of the Legend of Sleepy Hollow (1949) to all who celebrate.

@therealestjmark.bsky.social Frankenstein's awesome

Yesterday, Tyrannosaurus rex was formally named 120 years ago. In light of this, I'm reposting this! Look at all the love and inspiration the big guy recieved for more than a century. #paleoart #tyrannosaurusrex #maccadam #maccadams #monsterhunter #trex #dinosaurs #pokemonfanart

I'm *just now* realizing that Forrest Gump looks like a Rockwell painting...

The closest I'll ever be to a Tony.

World's best writing partner

Zotero for Kindle

SIEMPREVIVA!

Cemitas are served with sweet chipotle peppers. I added all the chipotle to mine and now my esophagus is on fire. I regret nothing.

STUNNING. GORGEOUS. NO ONE MORE DESERVING OF MANY BOWLS OF DELICIOUSNESS.

This is the face I make when food is involved.

Presenting my #scicomm course at the #RedPop meeting in Puebla. A joy to be among colleagues.

I've joined an amazing workshop on "cannibalistic translation" for science communication. #scicomm

Wordle 1,543 2/6* ⬛🟨⬛🟨⬛ 🟩🟩🟩🟩🟩

What's this?!

It's August and 100 °F outside. Have some shame.

Yes, Carrie, "the role of media in disaster management" is a fantastic topic for a lecture and a killer idea for a date. #AndJustLikeThat

Need this!!

The dream

Oh those poor wolves... 🤭 variety.com/2025/film/ne...

Duo sees me.

Bold of you to make plans for the day you were leaving.

1/7 The biggest mistakes scientists make on Bluesky? They're smart. Experienced. Passionate. But when it comes to building an audience online, many fall into the same traps. Here’s what’s holding them back—and how to fix it.

Good thing I made a backup yesterday because somehow ALL MY FILES WERE DELETED.

You brighten up my morning.

Finally watched Pride and Prejudice (2005) and let me say that Tom Hollander aged like FINE WINE.