diff --git a/Constants.md b/Constants.md
index 763f474..64a9f3c 100644
--- a/Constants.md
+++ b/Constants.md
@@ -6,3 +6,8 @@
 | Golden Ratio   | `phi`, `ϕ` | `f64` | `1.618033988749895` |
 | Pi             | `pi`, `π`  | `f64` | `3.141592653589793` |
 | Root Two       | `√2`       | `f64` | `1.414213562373095` |
+
+## Scientific Constants
+| Name           | Token(s)   | Type  | Value               |
+| -------------- | ---------- | ----- | ------------------- |
+| Speed of Light | `c`        | `f64` | `299792458`         |