N28: SPV (#871)

* Added SPV

* Added SPV screenshot

* Update index.md

* Update index.md

Author: AlbinSjoegren

content/news/028/index.md

@@ -376,6 +376,31 @@ raytraced results:
 
 ## Tooling Updates
 
+### [SPV]
+
+![SPV-0.3.5 screenshot](spv-0.3.5.png)
+
+[SPV] by [Albin Sjögren]
+is a calculator utility for working with astronomical position and velocity data.
+
+In the last month, a relative position and velocity
+calculation system has been added.
+This is due to the inaccuracy of astronomic data.
+With this new method that relies on the orbital elements of
+two body systems getting data for multibody simulation is now possible.
+
+Apart from this new equation set, [SPV] now also has a more standard
+color scheme based on the one GitHub uses.
+This month also came with numerous bug fixes and a more
+concrete plan for future development.
+
+For any feature requests, reach out to the developer on [Discord][spv-discord]
+or [GitHub][spv].
+
+[SPV]: https://github.com/AlbinSjoegren/SPV
+[spv-discord]: https://discordapp.com/users/258254056185659392
+[Albin Sjögren]: https://github.com/AlbinSjoegren
+
 ## Library Updates
 
 ### [Pixels] 0.8.0 👾