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Robert Simmon

@rsimmon.bsky.social

Data Visualization. Ex-Planet & NASA Earth Observatory. Blue Marble, Earth at Night, color, cartography, occasionally skewed views of Earth. Looking for a job.

5,595 Followers  |  1,132 Following  |  2,076 Posts  |  Joined: 02.05.2023  |  2.1466

Latest posts by rsimmon.bsky.social on Bluesky

Post a ship thatโ€™s not #StarTrek or #StarWars

07.02.2026 00:43 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
Sigma Space Corporation - Blue Marble: The Making of (NASA Observatory)
YouTube video by Sigma Space Media Sigma Space Corporation - Blue Marble: The Making of (NASA Observatory)

youtu.be/RS99upE-dPs?...

06.02.2026 22:00 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Itโ€™s all fun and games until you start getting quoted by flat-earthers!

06.02.2026 21:45 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Meet the cartographer turning data into stories
YouTube video by Chronicle 5 WCVB Meet the cartographer turning data into stories

Well, they put me on TV. youtu.be/vh1g-8HrUS4

06.02.2026 17:08 โ€” ๐Ÿ‘ 25    ๐Ÿ” 4    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

Yup! I found an example of that in SkyBox data before Planet acquired them.

06.02.2026 19:52 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
BILLY BRAGG - CITY OF HEROES
YouTube video by Billy Bragg BILLY BRAGG - CITY OF HEROES

mood: youtu.be/IKOW2ZikGW8?...

06.02.2026 16:49 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image

Iran IRGCN fast attack craft swarm spotted TODAY in Strait of Hormuz at

26.3253, 56.8145

40 vessels on international waters 14 nmi off Iran. Coming from Sirikยดs Shahid Seyyed Majid Base at

26.3253, 56.8145

Note several high altitude drone contrail induced cirrus clouds.

06.02.2026 14:49 โ€” ๐Ÿ‘ 28    ๐Ÿ” 9    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

I was laid off from the Washington Post today, along with hundreds (!!!) of incredible colleagues. If you need a data journalist, chart designer, or wacky-idea-specialist, give me a shout!

04.02.2026 17:33 โ€” ๐Ÿ‘ 220    ๐Ÿ” 86    ๐Ÿ’ฌ 10    ๐Ÿ“Œ 7
You're in Luis' website.

I'm not very active here, but given the news: I'm one of the hundreds of reporters laid off from the Post. I worked as a graphics reporter, mostly covering the U.S economy and politics.

My portfolio: www.lmelgar.me

04.02.2026 21:32 โ€” ๐Ÿ‘ 30    ๐Ÿ” 15    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 3

You can tell when one of the San Ramon quakes is over M 3.0 because you can feel it on the other side of the hills in Oakland.

05.02.2026 20:26 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I tried to use OpenAI, Gemini, and Claude to help write a multi-step script with the new GDAL raster commands, Python CLI interface, and pipeline โ€” only Claude got it right (and even then it took a few iterations).

05.02.2026 19:52 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Post image

Charley Harper, "Darwin's Finches", from "The Giant Golden Book of Biology", 1961

20.01.2026 14:57 โ€” ๐Ÿ‘ 1004    ๐Ÿ” 242    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 9

Anyone familiar with time series animation in QGIS? I have a series of GeoTIFFs with valid (I think) timestamps in the metadata that arenโ€™t recognized as timestamps. And the QGIS tool to automatically assign timestamps thinks a month is always 30 days. ๐Ÿคทโ€โ™‚๏ธ

So Iโ€™m at something of a loss.

05.02.2026 05:18 โ€” ๐Ÿ‘ 4    ๐Ÿ” 2    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

Amid the hundreds of colleagues weโ€™ve lost today, I wanted to highlight the BRILLIANT data/graphics folks who any newsroom should be fighting to hire right nowโ€”threading here:

04.02.2026 20:59 โ€” ๐Ÿ‘ 210    ๐Ÿ” 88    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 5

Anyone familiar with time series animation in QGIS? I have a series of GeoTIFFs with valid (I think) timestamps in the metadata that arenโ€™t recognized as timestamps. And the QGIS tool to automatically assign timestamps thinks a month is always 30 days. ๐Ÿคทโ€โ™‚๏ธ

So Iโ€™m at something of a loss.

05.02.2026 05:18 โ€” ๐Ÿ‘ 4    ๐Ÿ” 2    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
Preview
Spotlighting The World Factbook as We Bid a Fond Farewell Somewhat devastating news today from the CIA: One of CIAโ€™s oldest and most recognizable intelligence publications, The World Factbook, has sunset. There's not even a hint as to why they โ€ฆ

The CIA just stopped publishing their World Factbook and took every page, including the archived copies of previous versions!

This sucks. It was public domain, so I recovered the 2020 edition (the last one published as a zip file) and shared it to GitHub simonwillison.net/2026/Feb/5/t...

05.02.2026 00:25 โ€” ๐Ÿ‘ 6035    ๐Ÿ” 2183    ๐Ÿ’ฌ 178    ๐Ÿ“Œ 194

Weird thing is the climate (and weather) team that was heavily boosted under Bezos was about the best in the business a few years ago. Then dismantled because reasons? Iโ€™d like to go back to a world that makes some sense

04.02.2026 23:56 โ€” ๐Ÿ‘ 85    ๐Ÿ” 21    ๐Ÿ’ฌ 7    ๐Ÿ“Œ 0
Reentry trajectory plot of the Artemis 1 mission showing the skip reentry profile.

Reentry trajectory plot of the Artemis 1 mission showing the skip reentry profile.

Internet hivemind - does anybody know where I might find the trajectory data for the reentry of the #Artemis 1 mission?

I'm looking to make a kind of telemetry overlay for a remastered version of the reentry video. A good predicted trajectory should also suffice

04.02.2026 23:49 โ€” ๐Ÿ‘ 9    ๐Ÿ” 1    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0

At least 2of the 3 people I know there were let go.

04.02.2026 22:07 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
Cleaning Up After an Eruption Maybe you missed it, but the last eruptive episode at Kฤซlauea in Hawaiโ€™i was messy. Thankfully, that messiness didnโ€™t mean injuries and fatalities, but it does mean that suddenly a lot โ€ฆ

The 41st eruptive episode of Kฤซlauea in Hawai'i a few weeks ago made a big mess thanks to tall lava fountains and strong winds. Check out some details on the clean up in the area around Hawaii Volcanoes National Park: eruptions.site/2026/02/04/c... #eruptions

04.02.2026 17:13 โ€” ๐Ÿ‘ 27    ๐Ÿ” 11    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
A map with yellow-ish land and shaded relief, and lakes filled blue with some edge glow effects.

A map with yellow-ish land and shaded relief, and lakes filled blue with some edge glow effects.

The same map without the blue lake fill, only retaining the glow effects on lakes.

The same map without the blue lake fill, only retaining the glow effects on lakes.

Task at hand is a map that mostly copies @margot-carto.bsky.social's styles from a different map, and her work is so solid that you can accidentally turn off a major layer and it still looks great!

04.02.2026 21:47 โ€” ๐Ÿ‘ 7    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I worked at the Goddard DAAC before Terra even launched, I know how bad it can get!

04.02.2026 20:42 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

It is on EarthData! But I wasnโ€™t using EarthData, I was using a web search. Which led directly to the product page, which *did not* lead directly to the data.

04.02.2026 17:32 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Part of the problem is the interface simply doesnโ€™t work on Safari.

04.02.2026 16:56 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

And the more I watch this video, the more it appears that the slope that failed last week was actually constantly on the move, for at least the past 5 years. Curious what @davepetley.bsky.social sees.

04.02.2026 03:35 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
Fact check: Climate change is not making extreme cold more common Sometimes it just gets cold

Is climate change responsible for increasingly frequent or severe cold events?

The evidence suggests it is not.

Instead, the impact of climate change is warmer winters and less severe cold events.

@hausfath.bsky.social has a great post on The Climate Brink talking about this.

02.02.2026 17:02 โ€” ๐Ÿ‘ 110    ๐Ÿ” 42    ๐Ÿ’ฌ 11    ๐Ÿ“Œ 5
The Utility of Machine-Readable Science
Scientific papers are narratives. They transmit ideas from one
scientist to another by weaving together data, observations,
hypotheses, inferences, and speculation in a form optimized
for human reading. In this sense, a paper functions as an API
(application programming interface) for human understanding.
But it is a narrow one: rich in meaning for people, but opaque
to machines, and distilled to only one fixed narrative.

The Utility of Machine-Readable Science Scientific papers are narratives. They transmit ideas from one scientist to another by weaving together data, observations, hypotheses, inferences, and speculation in a form optimized for human reading. In this sense, a paper functions as an API (application programming interface) for human understanding. But it is a narrow one: rich in meaning for people, but opaque to machines, and distilled to only one fixed narrative.

My views of this framing and narrative structure are likely to evolve over time, but at the moment my reaction is overt revulsion.

03.02.2026 21:23 โ€” ๐Ÿ‘ 5    ๐Ÿ” 3    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
MODIS/Terra Snow Cover Monthly L3 Global 0.05Deg CMG, Version 61 | National Snow and Ice Data Center

Why oh why do we still, in 2026, need a PhD in data access to download satellite data? I have already found the dataset I want via web search, I do not want to be kicked back up to the top level of a search tool in order to access the actual files.

nsidc.org/data/mod10cm...

03.02.2026 23:02 โ€” ๐Ÿ‘ 13    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

โ€œThis fact about the Universe has spawned much outrage among physicists and philosophers alike since it was first noticed.โ€

What a banger line. Ethanโ€™s posts break my brain in the most delightful ways.

03.02.2026 21:19 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Map identifying the approximate regions where various Indigenous groups lived in North America in 1776.

Map identifying the approximate regions where various Indigenous groups lived in North America in 1776.

The Utah Historical Society just produced a new, excellent map of "The Peoples of North America in 1776." Great resource for anyone teaching, writing, presenting about Native peoples as part of their 250th work. america250.utah.gov/power-of-pla...

03.02.2026 13:48 โ€” ๐Ÿ‘ 1277    ๐Ÿ” 492    ๐Ÿ’ฌ 33    ๐Ÿ“Œ 44

@rsimmon is following 20 prominent accounts