![Aerospace | Free Full-Text | A Concept for a Mars Boundary Layer Sounding Balloon: Science Case, Technical Concept and Deployment Risk Analysis Aerospace | Free Full-Text | A Concept for a Mars Boundary Layer Sounding Balloon: Science Case, Technical Concept and Deployment Risk Analysis](https://www.mdpi.com/aerospace/aerospace-09-00136/article_deploy/html/images/aerospace-09-00136-g009.png)
Aerospace | Free Full-Text | A Concept for a Mars Boundary Layer Sounding Balloon: Science Case, Technical Concept and Deployment Risk Analysis
![Photo Gallery: RED-4U Prototype Capsule High Altitude Balloon Release - SpaceWorks Enterprises, Inc. Photo Gallery: RED-4U Prototype Capsule High Altitude Balloon Release - SpaceWorks Enterprises, Inc.](https://www.spaceworks.aero/wp-content/uploads/IMG_7612.jpg)
Photo Gallery: RED-4U Prototype Capsule High Altitude Balloon Release - SpaceWorks Enterprises, Inc.
![Photo Gallery: RED-4U Prototype Capsule High Altitude Balloon Release - SpaceWorks Enterprises, Inc. Photo Gallery: RED-4U Prototype Capsule High Altitude Balloon Release - SpaceWorks Enterprises, Inc.](https://www.spaceworks.aero/wp-content/uploads/RED4U_AFExplore_Proposal_v7-scaled.jpg)
Photo Gallery: RED-4U Prototype Capsule High Altitude Balloon Release - SpaceWorks Enterprises, Inc.
![Blue Royal Aero - Hot Air Balloon Model - Features Hand-Knotted Netting and Rattan Basket - Authentic Models AP163D : Amazon.co.uk: Toys & Games Blue Royal Aero - Hot Air Balloon Model - Features Hand-Knotted Netting and Rattan Basket - Authentic Models AP163D : Amazon.co.uk: Toys & Games](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T2/images/I/71ZRsQRTyQL._AC_SY355_.jpg)