Update README.md

README.md

@@ -14,6 +14,7 @@ tags:
 | [**Model Code**](https://github.com/IBM/terratorch/tree/main/terratorch/models/backbones/terramind) 
 | [**ESA Blog**](https://www.esa.int/Applications/Observing_the_Earth/ESA_and_IBM_collaborate_on_TerraMind)
 | [**IBM Blog**](https://research.ibm.com/blog/terramind-esa-earth-observation-model)
+| [**Challenge**](https://huggingface.co/spaces/ibm-esa-geospatial/challenge)
 
 # TerraMind 1.0 base
 
@@ -148,6 +149,10 @@ We provide an example notebook for generations at https://github.com/IBM/terrami
 Your feedback is invaluable to us. 
 Please share it with us by starting a discussion in this HF repository or submitting an issue to [TerraMind](https://github.com/IBM/terramind) on GitHub.
 
+## Challenge
+
+Already working with TerraMind? Submit your use case to the [TerraMind Blue-Sky Challenge](https://huggingface.co/spaces/ibm-esa-geospatial/challenge), a bi-monthly award spotlighting the boldest, most imaginative ways using TerraMind.
+
 ## Citation
 
 If you use TerraMind in your research, please cite the [TerraMind](https://arxiv.org/abs/2504.11171) pre-print.