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Elizabeth Tasker

@elizabethtasker@mastodon.online
mastodon 4.8.0-nightly.2026-10-06
  • Open on mastodon.online

UK astrophysicist working at the Japan Aerospace Exploration Agency (JAXA). Author of 'The Planet Factory'. Very into planets, cats and virtual reality (sometimes together). @girlandkat on twitter.

0 Followers
0 Following
50 Posts
Joined November 06, 2022
Personal web:
https://girlandkat.com/
Professional web:
https://www.elizabethtasker.com/
The Planet Factory:
https://www.bloomsbury.com/uk/planet-factory-9781472917744/
Planetary Diversity:
https://store.ioppublishing.org/page/detail/Planetary-Diversity//?k=9780750321389
Open post
Elizabeth Tasker @elizabethtasker@mastodon.online
· 2mo ago
New glasses! With progressive (varifocal) lenses because HELLO MID-FORTIES. (If you don’t know what those are, you will one day my sweet summer child.) Also, who knew this is what Tokyo looks like?! Wild. The world tilts if I turn my head sharply. I hear this takes practice.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 1mo ago
Boosted by @trending@homestead.social
Weird consequence of the continued Middle East conflict is black & white crisp packets in Japan. Due to a shortage of the petroleum-derived naphtha which is used for coloured inks, big snack company Calbee switched to colourless packs. They were initially hard to spot, but are now overtaking stores.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 2mo ago

Rocket bottoms in the swamp summer of Tokyo.

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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
The English press release with the first images of asteroid Torifune captured by the Hayabusa2 spacecraft is now live! (I translated, the ISAS PR lead checked it while practically running from the press conference, and someone at JAXA HQ stayed late enough to upload 😆 HIGH-FIVES ALL AROUND!) https://global.jaxa.jp/press/2026/07/20260706-3_j.html
global.jaxa.jp
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
Cat cugs! (Shortly followed by cat wrestles 😼) #CasperCat #NorahNeko
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
Replying to
Hayabusa2 has performed the Torifune flyby, and on July 5 at 18:35 JST, ground control confirmed that the spacecraft is operating normally.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
Boosted by @trending@homestead.social
We are launching a rocket 🚀. Here is a live feed (launch at 09:53 JST). This is JAXA's new H3 launch vehicle, which will launch the Martian Moons eXploration (#MMX) mission later this fiscal year. There's been a couple of failed launches, so we're all watching slightly anxiously 😅 The payload this time is payload for rocket performance verification, and some small satellites. https://www.youtube.com/live/HSiaGTea1rc
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago

Ready to take a deep dive into the science from humanity's three asteroid sample return missions: Hayabusa, Hayabusa2, and OSIRIS-REx? 🪨🛰️

Written for non-geophysicists (like me!), and those new to the field who don't yet ask to "pass the halite" at the dinner table, this review takes you on a whirlwind tour of the three missions and what was found when the samples crashed back to Earth:

My review paper for the journal of Contemporary Physics:
https://arxiv.org/abs/2604.22182

The science from asteroid sample return missions
arXiv.org

The science from asteroid sample return missions

To date, three samples from near-Earth asteroids have been delivered to Earth by Japan's Hayabusa (2010) and Hayabusa2 (2020) missions, and the United States OSIRIS-REx mission (2023). Free from terrestrial contamination, these pristine materials provide new opportunities to investigate planetary formation processes, the delivery of organics and water to the early Earth, and the nature of potentially hazardous asteroids. As analysis of the asteroid samples proceeds in laboratories around the wor

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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
A visit to Nagato, a town seemingly so remote that it took two train staff and a physical paper map to purchase tickets 😂 We only saw three convenience stores 😱 IS THIS EVEN CIVILISATION?! (My friend used to live there and would claim yes, but I remain skeptical!)
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago

It’s Showa Day (a national holiday) in Japan, and I ran into a dance festival. I think these are normally performed in summer, but nowadays April is close enough! Performers played drums and flutes and the half-moon straw hats are called “amigasa” (編笠).

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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
Replying to
At 12:40 JST, the team confirmed that the onboard trajectory guidance calculation has begun. All is well.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
Replying to
OK... HOW CLOSE ARE WE REALLY TALKING FOR THIS ASTEROID FLYBY? 🛰️👀🪨 Today at ~18:30 JST, Hayabusa2 will attempt a flyby exploration of asteroid Torifune. This web app by Otsuka Minoru let's you try the flyby at different distances... including... 0m. https://o-tsuka.net/haya2flyby/ (WHY WOULD YOU DO 0m?! WHY DO I KEEP CLICKING ON THAT OPTION?!)
o-tsuka.net

Unity Web Player | Haya2FlybyWeb

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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
Replying to
Update from the Hayabusa2# team over on the bad place: 09:54 JST and optical navigation has begun. All is well.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
This is why I have trust issues 😐 (This happens because of the strong association in the literature between Hayabusa2 and asteroid Ryugu, the destination of the original mission. But it's interesting this overrides even quite a simple translation and pre-AI would not have had a problem with completing correctly.)
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
Replying to
If you'd like to follow the Hayabusa2# flyby of asteroid Torifune today in real time 🛰️🔭, Otsuka Minoru also put together a real-time version of his flyby web app! He notes that nothing will appear on the screen until a few minutes before the flyby just before 18:30 JST (because... that's a flyby...) but he flips the camera angles to keep us entertained. https://o-tsuka.net/haya2flybyrealtime/
o-tsuka.net

Unity Web Player | Haya2Flyby Real-time Player

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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
Replying to
At 15:00 JST, the final ΔV (trajectory change) operation was performed from the ground. We are still nominal 🫡
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
Replying to
HELL YEAH! Torifune is another Itokawa; a contact binary where two asteroids collided gently enough to merge. In the case of Itokawa, the two parts were likely fragments of the same parent asteroid that fragmented during a catastrophic collision, and then gentle bounced back together.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
Replying to
NOBODY BREATH!
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago

Is it absolutely ridiculous to buy frozen baked potatoes?

Yes.

Are they delicious and perfectly cooked after five minutes in the microwave?

Also yes.

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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
Replying to
At 17:37 JST on July 5, ground control confirmed that the onboard trajectory guidance had commenced. The spacecraft condition is normal.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago
Do you chew them or…? 🧐
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago
Replying to
OK, so I wasn't in the control room for OSIRIS-REx, but I'm prettttty sure this is exactly what went down when the spacecraft tried to collect a sample from asteroid Bennu 🛰️🍽️.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 2mo ago
A man steps outside his house, carrying his toddler child. Child bursts into tears. And that is today’s weather report.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
My kanji app has given me a whole story in three vocabulary words.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago
Withdrawing a huge wad of cash and causally handing it over at a convenience store to pay my property tax bill in Japan remains… a little weird. Here is a hundred thousand yen… oh, and I’ll take this can of coke too.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago

Anyone have a good (and cheap) conference platform for online/hybrid meetings?

I really want the talks streamed into the platform, rather than using a separate app like Zoom, to keep everyone together for talks, questions, and discussion.

Budget is uncertain, so we were considering "Discord", but the new age verification (needed for "stage access") could be a barrier.

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Elizabeth Tasker @elizabethtasker@mastodon.online
· 6mo ago

This telephone box still actually has a working telephone, but has also been invaded by a little library 📚

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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago

Received an email inviting me to submit a “virtual feature” for a writers’ convention.

After MANY messages, I realised that I’d be paying to be the content which seems… bold… and opposite to most events.

I guess this is a paid advert but DUDE! Next time lead with “surprise, you’re the sponsor.”

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Elizabeth Tasker @elizabethtasker@mastodon.online
· 6mo ago

Visit to Biddulph Grange Garden, a @National Trust property with beautiful Victorian gardens populated by plant specimens from around the world originally collected by James Bateman in the 1800s 🪴

Here I am, trying to avoid falling into a pond in the Chinese garden as my aunt takes a photo 😂

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Elizabeth Tasker @elizabethtasker@mastodon.online
· 6mo ago

Bottoms up! 🦆

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Elizabeth Tasker @elizabethtasker@mastodon.online
· 6mo ago

An egg. Oh yes.

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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago
Replying to
Meteorite studies tell us buckets about how the planets formed, but they have some drawbacks. (And uh, I might possibly have to remove Trogdor before showing this video to JAXA...)
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago

This is the “forgotten fairyland” VR @walkaboutminigolf course. The wind is howling, the rides are broken, stalls are overturned, and the coconut stall is called “dump a humpty”. Finding this fairyland was a terrible mistake. We naturally played minigolf.

lemmy.ca
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago

There’s a lot of people at the medical clinic this morning and they all seem to know each other 🧐

Was there a giant party last week in which everyone got Covid?

… might stand outside 😅

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Elizabeth Tasker @elizabethtasker@mastodon.online
· 6mo ago

Received a package via Evri with the requisite email showing a photo of the parcel at delivery.

…that photo showed the parcel in the delivery person’s car chilling next to their kid like it was on a day out.

And I gained a new appreciation for people who follow orders without ever asking… why.

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Open post
Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
Replying to
@tsturm@famichiki.jp I think LIDAR was going to be attempted, but they'll have to download all the data.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
Replying to
@tsturm@famichiki.jp OH YES, the app tells you! That is cool.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
Replying to
@tsturm@famichiki.jp The plan was 800m from the asteroid centre. I don't think that will have changed, so I believe the main uncertainty will be the shape of Torifune, which will determine the distance from the surface.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 3mo ago
Replying to
@withaveeay@mastodon.scot could be either, they’re pretty geeky.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago
Replying to
@jannem@fosstodon.org I’m in the uk, so not very likely (and there’s alt text)
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago
Replying to
@pare I am very glad -- thank you!
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago
Replying to
@MarcSchulder@fediscience.org This is the set up that we’ve used often in the past, but my experience is that the chat-platform is ignored entirely by the on-site participants and only poorly used by the online attendees. So for this meeting, we really want to try keeping everything on one platform in the hope that the chat discussions are more used.
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago
Replying to
@david_chisnall@infosec.exchange I know gather.town and also like it! Typically, we need the functionality of both v. 1.0 (ability to stream the conference talks into the platform) and 2.0 (async chat discussions) combined... which isn't offered 🤦 We are now looking at WorkAdventure which is very similar ....
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago
Replying to
@wdenton@cosocial.ca That looks really great for webinars, but I think it lacks an asynchronous discussion (slack-like) set-up for notices, discussion after the talks, and sharing ideas during the meeting?
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago
Replying to
@wirepair@mastodon.social oh that’s possible! Although it’s a Saturday, and an English-speaking clinic, so I actually suspect it’s foreign residents who live around the area and know each other just from proximity 😅
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 5mo ago
Replying to
@scroeser@kolektiva.social That looks affordable, but I think lacks a asynchronous discussion areas for threaded discussions/hallway chat like slack or discord 🤔
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Elizabeth Tasker @elizabethtasker@mastodon.online
· 1mo ago
In silent screams of the day: Me: [trying to slide my smartphone into my pocket, but the pocket isn’t deep enough] Dude next to me on the train: [Stuffs a 500ml drink bottle into his trouser pocket and pulls out a book.]
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