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Alexandra Witze

@alexwitze.bsky.social
20K followers 1.9K following 1K posts

Science journalist and correspondent for Nature (she/her). Opinions = my own. Reach me at alexwitze.01 (Signal), witzescience (@gmail.com), or awitze (@protonmail.com).

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Alexandra Witze @alexwitze.bsky.social · 07/10/2026
Wired: Maren Hunsberger of @nature.com explaining chiral molecules (today's chemistry Nobel) on TikTok in 60 seconds with Kermit and Evil Kermit Tired: No women winning science Nobels this year, yet again Expired: Nobel fetishism 🧪
A woman (Maren Hunsberger) talks above a laptop screen showing Kermit and evil Kermit.
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Alexandra Witze @alexwitze.bsky.social · 28/08/2026
⬇️ Adventures with the Seestar, calibration problems, video compression, etc. But we got data on a glorious night. Someone was playing Dolly Parton songs on the piano during the eclipse in our neighborhood. #moonjoy 🧪🌒💖
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Alexandra Witze @alexwitze.bsky.social · 03/08/2026
The #ArtemisII crew seems legitimately overwhelmed to be in the Red Rocks venue.
Artemis II astronauts on a large screen and in person in front of it
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Alexandra Witze @alexwitze.bsky.social · 03/08/2026
Colorado governor Jared Polis rolls out his favorite line about how here in Colorado we’re a mile closer to space
Colorado governor Jared Polis in front of a large screen displaying a moon and a moon rocket
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Alexandra Witze @alexwitze.bsky.social · 03/08/2026
#ArtemisII crew speaks to reporters at Red Rocks - saying they are here to celebrate Rocky Mountain contributions to the historic mission.
The Artemis II crew speaks in a wood paneled room as microphones are thrust in their faces
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Alexandra Witze @alexwitze.bsky.social · 03/08/2026
Best location ever for an #ArtemisII crew event? (Red Rocks amphitheater, Morrison CO) Yes 🚀 No 🚀
A large amphitheater stage displaying Artemis II information at Red Rocks, Colorado
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Alexandra Witze @alexwitze.bsky.social · 22/07/2026
Excited to have LOST IN CURIOSITY, the new book from @robertakwok.bsky.social, now in hand! #BookSky
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Alexandra Witze @alexwitze.bsky.social · 10/06/2026
Two planets glimmer in the western sky after sunset
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Alexandra Witze @alexwitze.bsky.social · 11/04/2026
Fiona confirms, this is the correct take
A gray cat looks away from a television screen on which the Artemis II capsule is floating in the ocean. Oh Fiona.
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Alexandra Witze @alexwitze.bsky.social · 06/04/2026
Why yes we were in Mission Control when flight directors broadcast a message from Jim Lovell to the crew as they woke up on lunar flyby day #ArtemisII 🧪🔭
A woman stands in front of a large window with multiple consoles of Mission Control behind her
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Alexandra Witze @alexwitze.bsky.social · 06/04/2026
Inside the Science Mission Operations Room at the Johnson Space Center this morning. #ArtemisII 🧪🔭
A white board that reads “good luck Artemis II crew and lunar science team” and a doodle of a Snoopy.
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Alexandra Witze @alexwitze.bsky.social · 03/04/2026
The #ArtemisII astronauts have fired the engines on their spacecraft and set course for the Moon. The Earth is falling away behind them. Watch live views of this extraordinary moment: x37b.nl/artemis/ 🧪🔭
Earth as viewed from space, a curving globe on the left side of a spacecraft camera feed.
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Alexandra Witze @alexwitze.bsky.social · 06/01/2026
Amazing images from the Rubin observatory displayed tonight at #AAS247 in Phoenix, at the Arizona Science Center. This is the Trifid and Lagoon Nebulae first light image projected on a planetarium dome.
An astronomer stands silhouetted against a multicolored cosmic blast of gas and dust
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Alexandra Witze @alexwitze.bsky.social · 15/12/2025
If you need me I’ll be by the puppy yoga #AGU25
A sign in a convention center reading 

Puppy Yoga
Press
Camp AGU
Prayer Room

With an arrow indicating to the right
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Alexandra Witze @alexwitze.bsky.social · 01/12/2025
We are SO EXCITED to have this too especially Phoebe who is waiting for HER OWN MOON also the box is THE BEST also @arielwaldman.com every day!
A floofy gray cat, stoned on catnip, rests in feline amazement inside a large box with a picture of a cacao bean on the lid.
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Alexandra Witze @alexwitze.bsky.social · 19/11/2025
NASA's pix of the interstellar comet 3I/ATLAS are now up science.nasa.gov/solar-system... This is the HiRISE/MRO image ⬇️
A blurry white fuzz in the center of a black frame.
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Alexandra Witze @alexwitze.bsky.social · 12/11/2025
#AuroraSky Near Boulder, Colorado
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Alexandra Witze @alexwitze.bsky.social · 12/11/2025
Aurora’s out! Taken in Colorado, 40 degrees north
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Alexandra Witze @alexwitze.bsky.social · 19/09/2025
The Moon, Venus and Regulus in the predawn sky, from Colorado. #skywatching
Two bright “stars” in the pinkish predawn sky with a foreground of pine trees
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Alexandra Witze @alexwitze.bsky.social · 16/09/2025
“Nothing in the Dark,” Twilight Zone episode, 1962. RIP.
A young Robert Redford extending his hand towards the viewer in a black and white photo inside a building. He is Death.
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Alexandra Witze @alexwitze.bsky.social · 08/09/2025
I … don’t know what to do with this matchup. But here is Pollux (RIP) so we’re going #pollucite all the way ❤️
A gorgeous Siamese cat regards the camera
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Alexandra Witze @alexwitze.bsky.social · 11/07/2025
Important office decor update! Tissue box switch is happening…. Left: out Right: in Thank you @phaneritic.bsky.social for my @mountsthelens1980.bsky.social tissue box! 🤩🌋
Left: a tissue box, with a multicolored diagram of Layers of the Earth on its side.

Right: a tissue box, 3D printed in the shape of Mount St Helens
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Alexandra Witze @alexwitze.bsky.social · 14/06/2025
The #NoKings scene in Talkeetna, #Alaska: “Denali Forever!”
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Alexandra Witze @alexwitze.bsky.social · 06/06/2025
Timeline cleanse
A gray cat stares pensively, or perhaps vacantly, into the distance.
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Alexandra Witze @alexwitze.bsky.social · 30/05/2025
We have NASA's proposed budget for FY26, and it is brutal to science. Earth science would be cut by more than half. Astrophysics (like JWST, Hubble) by nearly two-thirds. Full details at www.nasa.gov/fy-2026-budg...
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Alexandra Witze @alexwitze.bsky.social · 19/05/2025
I have Reviewer #2 Always critical of the amount of tuna in the house
A gray fluffy cat lying in sunlight on a red and blue patterned rug. This is Fiona the floofmonster.
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Alexandra Witze @alexwitze.bsky.social · 26/03/2025
Here at the ASSW Arctic science conference in Boulder, a poster describing research done with US federal funds has words including “ethical” and “equity” crossed out. 🧪
Words including resilience and Greenland, on a poster. The word “ethical” is crossed out.
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Alexandra Witze @alexwitze.bsky.social · 13/03/2025
two leopards in repose
Two gray cats curled up on a blue chair
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Alexandra Witze @alexwitze.bsky.social · 08/03/2025
The Ozempic gila monster made an appearance in Denver #gilamonstersforscience
A hand colored picture of a Gila monster with the words "You're welcome for the Ozempic!" in a word bubble coming out of its mouth.
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Alexandra Witze @alexwitze.bsky.social · 07/03/2025
#StandUpForScience Denver
A Capitol building with pro-science signs
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Alexandra Witze @alexwitze.bsky.social · 07/03/2025
#StandUpForScience Denver. Photo by Jeff Kanipe.
A sign reading We Need NOAA
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Alexandra Witze @alexwitze.bsky.social · 07/03/2025
This is Courtney. She’s about to graduate with her PhD in neuroscience from the University of Colorado. She made this sign in 2017 for the first science march and has had it in her lab ever since. “In 2017 we felt science was being attacked. Now it actually is.” #StandUpForScience Denver
A woman holding a sign showing a polar bear and a melted iceberg and the words Science shouldn’t be polarizing
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Alexandra Witze @alexwitze.bsky.social · 07/03/2025
At the #StandUpForScience march in Denver
A woman holds a sign that says Colorado Loves Science
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Alexandra Witze @alexwitze.bsky.social · 18/02/2025
This morning, the US National Science Foundation fired 168 employees, approximately 10% of its workforce, for no cause other than they were the agency's most recent hires. 🧪 Co-workers are leaving supportive messages before they have to clear out of the building at 5 p.m. Sent to me by a source ⬇️
Handwritten notes on a metal table at the National Science Foundation, 2/18/25. The messages include "You deserve better! Thank you!"; "Thank you colleagues! This RIF is WRONG. These orders are immoral & illegal"; and "Your service will forever be remembered and deeply valued - ENG directorate".
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Alexandra Witze @alexwitze.bsky.social · 13/01/2025
The floofs send support to you and yours
Two gray cats snoozing on a rug in the sun
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Alexandra Witze @alexwitze.bsky.social · 08/12/2024
They weren’t kidding, there really is an inflatable JOIDES Resolution at the #AGU24 check-in area!
A large blue and white inflatable drillship. The side of it says “in search of earth’s secrets”.
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Alexandra Witze @alexwitze.bsky.social · 16/10/2024
Got you at last, you little bastard
A comet in the sky above a landscape of forested mountains
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Alexandra Witze @alexwitze.bsky.social · 14/10/2024
Success!
A woman points to a distant flaming rocket in the blue sky above her.
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Alexandra Witze @alexwitze.bsky.social · 14/10/2024
Hoping to see a launch today …
A woman standing in front of a sign that reads Europa Clipper, in a grassy Florida landscape with a rocket in the distance.
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Alexandra Witze @alexwitze.bsky.social · 11/10/2024
Helloooooo solar max
Brilliant pink and green aurora above a tree lined horizon
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Alexandra Witze @alexwitze.bsky.social · 11/09/2024
Sicily 2018 I am so ashamed to say I don’t remember what I ordered
An array of gelato flavors on display in a case
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Alexandra Witze @alexwitze.bsky.social · 17/06/2024
Always rockin’ the engineer look. Happy Fathers Day!
A man in sunglasses and a skinny red tie standing in front of a flowering bush.
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Alexandra Witze @alexwitze.bsky.social · 11/05/2024
Hellooooo from southeastern Wyoming
A pillar of purplish light reaches skyward above a dark horizon. This is the aurora borealis.
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Alexandra Witze @alexwitze.bsky.social · 12/01/2024
So are we!! 🌔
A woman holds up a copy of a hardback book: OUR MOON by Rebecca Boyle. A black-and-white globe of the Moon is in the background.
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Alexandra Witze @alexwitze.bsky.social · 19/12/2023
Here’s Thor’s AGU slide summarizing volcanic hazards in the Reykjanes Volcanic Belt (RVB). Prior eruptions in the 12th century (light purple) sent lava across coastal roads (red circles). If this happened today, Thor noted, the entire peninsula, including Keflavik airport, would be cut off. (8/n)
A powerpoint slide showing a map of southwest Iceland, with prior volcanic eruptions marked in shades of purple and circles indicating areas of hazard. Hazards listed on the slide include tephra fall, gas pollution, lava flows and littoral (coastal) eruptions.
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Alexandra Witze @alexwitze.bsky.social · 03/12/2023
Many thanks to @volcanojw.bsky.social for alerting me to Target facial-tissue supplies
A square tissue box decorated on the outside with the layers of the earth, from crust to core
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Alexandra Witze @alexwitze.bsky.social · 19/11/2023
I finally made it into the New York Times! From today’s paper, on the ongoing Icelandic volcanic unrest.
A text summary of the ongoing Icelandic volcanic unrest, with a side blurb promoting my book ISLAND ON FIRE, about the 1783 eruption of the Icelandic volcano Laki
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Alexandra Witze @alexwitze.bsky.social · 27/10/2023
Oh no! Puck missed the deadline!!
A gray tabby cat lounges atop a small white gas fireplace.
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Alexandra Witze @alexwitze.bsky.social · 14/10/2023
Why yes we did capture the annular eclipse. Photographed from Rio Rancho, New Mexico, by my husband Jeff Kanipe with a 600mm lens and solar filter.
A perfect light golden ring (the Sun nearly completely eclipsed by the Moon) on a black background.
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Alexandra Witze @alexwitze.bsky.social · 14/10/2023
Happy eclipsing everyone!
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