This is a 🧵 about satellites 🛰️ and the differences between optical and radar satellites.

Satellite imagery is getting more important in conflict areas as visual evidence, for verification and to get a better understanding of the situation on the ground.
(🛰️ @Maxar) There are two types of satellite data in remote sensing which are optical satellites and radar satellites. 🛰️

Optical satellite imagery views the world as the human eye does - Berlin (19.03.2022) Sentinel 2 @sentinel_hub

We spent months investigating a widely unknown form of illegal oil pollution at sea caused by global shipping.

Our investigation into the dirty secrets of the shipping industry 🧵
dw.com/en/exclusive-h… A great cross-border collaboration done with @LHreports @mxbernhard, @maxmuller100, @anthep_1, @ORARiccardo, Adina Florea, @NaomiConrad, @NW_Recherche, @bayer_julia, @bearamalhosilva, @polpareja, @GestelMaarten, @karla_juni, @mpradoexpresso, @laurapaddison, @mjmarci @ludohekman.

How to spot a deepfake? Let's say: spot the (in)visible 👁️🔍
Together with @RubyBouw we compiled hands-on tips: dw.com/en/fact-check-… Thread 1. Look for strange "jumps" in a video, a change of voice emphasis, low-quality audio, blurred spots, strange shapes of limbs, and other unusual inconsistencies.

(Thread) We analyzed a data leak of Myanmar business financials published @DDoSecret.
Our investigation focused on military chief Min Aung Hlaing and his children's business affairs.
Here's what we found out.
dw.com/en/in-myanmar-…
#WhatsHappeningInMyanmar In March 2021, Min Aung Hlaing's son Aung Pyae Son and daughter Khin Thiri Thet Mon as well as their businesses were targeted with US sanctions.
We found three additional companies run by them which are not on the sanctions list: Pinnacle Asia, Attractive Myanmar, Photo City.

The incident took place in the strait between Turkey and the Greek island of Lesbos. We talked to an eyewitness who didn't dare film the attack itself, but he documented the immediate aftermath on his cellphone. We analysed and verified his footage. (Thread)

https://twitter.com/dwnews/status/1277597184842760193

On the videos you see a damaged motor and a hole at the back left side. We verified the location, confirmed the time, checked with @alarm_phone who received the emergency call and the Turkey Coast Guard which published a photo of their rescue.

We talked to Uighurs imprisoned in re-education camps in Xinjiang, who told us their accounts of fake trials and being forced to choose from a list of crimes.

We identified the location of these re-education camps. (Thread)

https://twitter.com/dwnews/status/1269859036138217473

We located and verified the camps where the sham trials took place using open source information e.g. satellite imagery, government documents including tender bids and financial plans.

The leaked #KarakaxList mentions at least 4 “re-education camps” that Uighur detainees were sent to in #Xinjiang.

Together with @CherieChancy and @NaomiConrad, we verified and located the camps using satellite images and governmental documents and bids. (Thread)

https://twitter.com/dwnews/status/1229436218351476736

We were able to verify and locate two of the “re-education camps” (1+2) mentioned in the #KarakaxList.
And we also located two other camps (3+4), using satellite images and governmental documents, including tender bids and financial plans.