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Dr. Jessie Christiansen

@aussiastronomer

Caltech/IPAC Planet Hunter | Chief Scientist, NASA Exoplanet Science Institute | @TEDFellow | Science consultant | General Nerd | My views are not the views of NASA | She/her

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Latest posts by Dr. Jessie Christiansen @aussiastronomer

Timeline cleanse.

11.03.2026 04:57 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Well this concept is for targets out to 20 parsecs!

11.03.2026 00:17 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

This is a high-resolution direct imaging concept, so you'd work out how rings would smear out your image, and at what wavelengths.

11.03.2026 00:07 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Niiiice.

10.03.2026 23:57 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Enjoying my latest Cassandra role of showing up to science meetings and croaking 'Have you thought about exorings?' from the back.

(More fun than my previous 'But we don't know eta-Earth well enough!' saw.)

10.03.2026 23:39 πŸ‘ 26 πŸ” 0 πŸ’¬ 3 πŸ“Œ 0

No it's nearly the end, we live in Los Angeles!

10.03.2026 23:37 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Wow the fifth grade teachers are really just done with things, aren't they. Our school has a fundraiser every year where the class works together to make a group art project, on which the parents bid. This year the teachers just emailed to ask if all the parents could just donate money this year. πŸ˜…

10.03.2026 23:04 πŸ‘ 35 πŸ” 3 πŸ’¬ 4 πŸ“Œ 0

Ermagawwwd.

10.03.2026 22:51 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Post image

Never forget:

10.03.2026 19:31 πŸ‘ 257 πŸ” 66 πŸ’¬ 0 πŸ“Œ 0

HAVE A SUPER MAR10!

10.03.2026 15:59 πŸ‘ 28 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

Oh my god I'm just catching up. This is devastating. Huge condolences to the AXIS team, who have worked so hard.

10.03.2026 04:12 πŸ‘ 23 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Tempted to post of photo of the crumpled tissues and handkerchiefs in my pocket. SIGNS OF SPRING!

09.03.2026 18:31 πŸ‘ 14 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I genuinely interpreted this as him wanting to buy their used shoes off them, and given everything we know, I didn't even blink.

09.03.2026 16:45 πŸ‘ 25 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

DIDN'T WE ALREADY VOTE TO GET RID OF DAYLIGHT SAVINGS IN CALIFORNIA.

*slumps into caffeinated beverage*

09.03.2026 16:37 πŸ‘ 14 πŸ” 0 πŸ’¬ 3 πŸ“Œ 0

Seriously though, if you journal clubbed or astro-coffeed about one, you should also do the other. Both super interesting and meta.

08.03.2026 23:20 πŸ‘ 16 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0

He is, and I agree that the inference is his opinion can be discounted.

08.03.2026 23:18 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

So far everyone agrees with me so I’m just going to print out this thread and show it to Phil.

08.03.2026 22:51 πŸ‘ 9 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

Astronomers! Solve an important debate.

Is it pronounced coh-spar, or cos-par?

08.03.2026 22:04 πŸ‘ 8 πŸ” 0 πŸ’¬ 13 πŸ“Œ 1

I hope everyone who checked out @hogg.bsky.social’s white paper on the implications of LLMs in astronomy and shared it across slack channels similarly perused and amplified this white paper of best practices for broadening participation in astronomy!

08.03.2026 21:40 πŸ‘ 45 πŸ” 12 πŸ’¬ 0 πŸ“Œ 1
Cover of "Picture an Astronomer: Best Practices for Retaining Talent in Astrophysics", which features an illustration of a 19-year-old Vera Rubin looking through a telescope over a backdrop of a first light image of spiral galaxies from the Rubin Observatory.

Cover of "Picture an Astronomer: Best Practices for Retaining Talent in Astrophysics", which features an illustration of a 19-year-old Vera Rubin looking through a telescope over a backdrop of a first light image of spiral galaxies from the Rubin Observatory.

Happy International Women's Day!

Perfect time for me to (re)share our white paper on increasing the retention of women in professional astrophysics (really full of suggestions that broaden participation in academic science in general).

arxiv.org/abs/2512.24465

πŸ§ͺπŸ”­β˜„οΈπŸ‘©β€πŸ”¬

08.03.2026 20:00 πŸ‘ 174 πŸ” 71 πŸ’¬ 3 πŸ“Œ 3
Preview
Pictures of Distant Worlds

If you live in the Bay Area, are bored on Wednesday night, and would like to hear flippant remarks about exoplanets and see pictures of golden retrievers, come here me talk at Foothill College: www.seti.org/events/pictu...

08.03.2026 21:09 πŸ‘ 16 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Allergiiiiiieeeeeeeeessssssss.

08.03.2026 18:02 πŸ‘ 9 πŸ” 0 πŸ’¬ 4 πŸ“Œ 0

On my old Ford, changing the clock was so complicated and arduous that after two years I just left it on one time and mentally added or subtracted as needed. πŸ˜‚

08.03.2026 02:56 πŸ‘ 7 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

🫠

07.03.2026 20:44 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It's on Hulu!

07.03.2026 17:08 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

A million percent this. It was so weirdly personal and cruel.

07.03.2026 16:50 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Preview
a man in scrubs is dancing in a hospital room with the words oh yeah behind him Alt: Turk dancing to Poison.

Ummmm I don't want to jinx it but new Scrubs was DELIGHTFUL and FUNNY and NOSTALGIC and SO MUCH BETTER THAN I FEARED.

07.03.2026 16:37 πŸ‘ 32 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

Yes and YES!

07.03.2026 04:21 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Dang. Pom-hello!

07.03.2026 03:30 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Hooray!!!!! That's marvelous news.

07.03.2026 03:30 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0