Simon Proud
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simonsat.bsky.social
Simon Proud
@simonsat.bsky.social

I work at the European Space Agency as the mission scientist for the Sentinel-2 and Sentinel-3 next generation missions.

I mainly post nice pictures of the Earth from space!

Note: Not an official ESA account, opinions are my own and mine alone!
Huge dust storms in Pakistan, seen by the @esa.int / @ec.europa.eu Sentinel-2B and Sentinel-3B satellites on 4th November.
Neither satellite was designed to monitor dust plumes, so it's impressive how much information they give us about the detail and extent of these storms!
November 6, 2025 at 8:32 PM
Along the N. Coast of Alaska, winter is closing in. These pics ages, from the Copernicus Sentinel-2 mission, were taken just two weeks apart. Heavy snowfall on land, and the beginnings of ice on sea.

Soon, the sun will be too low and Sentinel-2 will stop acquiring images until Springtime.
October 30, 2025 at 7:35 PM
Insane.
This is Hurricane #Melissa seen right near landfall by the Copernicus / @esa.int Sentinel-2C satellite.

It looks so beautiful, and it's hard to comprehend how much destruction a hurricane like this can cause.

Best wishes to everyone in Jamaica.
October 28, 2025 at 8:21 PM
17 hours of #Hurricane #Melissa seen from space compressed into 9 seconds.

Weather sats are vital for monitoring and forecasting Hurricanes. Without them, our forecasts would be much worse - increasing the danger posed by these monsterous storms.

Data: NOAA / GOES-19
Video: ESA / Simon Proud
October 28, 2025 at 4:50 PM
It was great to be at @thalesaleniaspace.bsky.social last week to discuss the SIRIUS mission that is under consolidation as one of @esa.int's future SCOUT missions.

SIRIUS will examine land surface temperature, with a focus on urban heat islands and unique data for evapotranspiration models.
October 7, 2025 at 12:40 PM
Here are two images from the @esa.int / @ec.europa.eu Sentinel-2 mission showing the city of #Salalah in Southern Oman.

One pic from June, before the rainy season, and one from this week, after the rains. The hills around the city transform into a lush green landscape!
September 30, 2025 at 7:04 PM
An amazing change in the colour of the sea due to #Typhoon #Ragusa.

The first pic was taken by the @esa_earth Sentinel-2 mission a few days before the typhoon, the second pic taken after the typhoon, just a few hours ago.
September 25, 2025 at 7:51 AM
Nice to receive a little present from our @esa.int Sentinel-2 team, a Lego S2 satellite 😄
September 5, 2025 at 8:34 AM
Am taking some time for relaxation in the Alps, so apologies for being slow to respond to messages and comments.

Will be back in the world of space-based Earth Observation soon, but for now im enjoying EO at slightly lower altitudes 🙂
August 19, 2025 at 6:00 PM
To me, the Netherlands is remarkably anthopogenic place, nature is subjugated, everything is concrete and construction: Why have a garden when you can have space for a second car?

Glad to have found a house that retains some nature.
August 2, 2025 at 7:19 PM
Nice to visit Thales Alenia Space in Madrid this week to discuss future satellite missions.

Thanks for the tour of the clean room! Lots of exciting work going on 😃
July 18, 2025 at 5:44 AM
Large #wildfires burning in Syria, seen yesterday by the
Copernicus / @esaearth.esa.int Sentinel-2 mission.

As well as the fires themselves, you can see a huge region that's already been burned - all that Brown-coloured bit in the middle.
July 9, 2025 at 1:35 PM
Satellite sees satellite! 😮

The @noaa.gov GOES-18 satellite saw @eumetsat.int's MTG-S1 satellite as it blasted off from Florida last night.

See that little bright dot in the middle of the image? That's the @spacex.extwitter.link rocket!
July 2, 2025 at 8:31 AM
Today we signed the study contract for our @esa.int SCOUT missions.

Am excited to be the science officer for SIRIUS, one of the missions, that aims to explore urban heat islands.

These missions are fast, with compressed development, and I'm looking forward to seeing the progress! 🚀🛰
June 26, 2025 at 10:48 AM
Today at Living Planet #LPS25 come along to our session on the Sentinel2 mission!

Some good talks about the current generation of Sentinel 2, and the next generation.
June 25, 2025 at 4:51 AM
Day 2 of Living Planet! #LPS25

Do you want to learn about what's new with the next generation of Sentinel-2 and Sentinel-3?

Come along to our session at 11.30, room E1!
June 24, 2025 at 6:37 AM
Ever wondered what's inside a satellite?

Here's a nice simple example from Airbus about what's inside Sentinel-2!
June 23, 2025 at 1:19 PM
Arriving at a very sunny #LPS25!

Keen to talk to as many people as possible, especially about sentinel 2 and 3. Let me know what you like, what you want, what you do!
June 23, 2025 at 7:35 AM
Are you going to be at Living Planet #LPS25 today?

If so, join us between 14:00 and 17:45 for two sessions celebrating 10-years of Sentinel-2!
Come listen to some of the highlights, and get insights into what comes next.

And, if that doesn't tempt you, there will also be cake! 😀
June 23, 2025 at 5:39 AM
Back in Vienna, back at the UN!
Now time for #LPS25 🚀
June 22, 2025 at 12:58 PM
Preparing for #LPS25 by putting together some beautiful images from the Sentinel-3 mission.

Check out all these wonderful pictures of our planet, all taken by S3 within the last 24 hours!

Nice example of the excellent collaboration between @esa.int , @eumetsat.int and @ec.europa.eu!
June 20, 2025 at 11:45 AM
Nice overview by Jacob from the Danish Meteorological Institute at the @ghrsst.bsky.social symposium about the challenges of retrieving data on ice surface temperature in the arctic.

Lots of progress, but still lots of work to be done...
June 17, 2025 at 8:06 AM
Happy to be at the @ghrsst.bsky.social meeting in beautiful Copenhagen.

Looking forward to talking to all the scientists about our next generation of @esa.int / Copernicus Sentinel missions!
June 16, 2025 at 7:25 AM
Two large flashes visible in satellite data of Israel over the past hour. One is inland, the other offshore.

Suspect the offshore one is gas flaring from an oil platform as a precaution against attack...
June 13, 2025 at 6:59 PM
Exploring somewhere new on today's visit to @eumetsat.int! 🛰📡
June 5, 2025 at 6:15 PM