diff --git a/cmr/queries.py b/cmr/queries.py
index 1cf0f69..db4c162 100644
--- a/cmr/queries.py
+++ b/cmr/queries.py
@@ -4,6 +4,7 @@
 
 from abc import abstractmethod
 from collections import defaultdict
+from decimal import Decimal
 from datetime import date, datetime, timezone
 from inspect import getmembers, ismethod
 from re import search
@@ -625,7 +626,17 @@ def point(self, lon: FloatLike, lat: FloatLike) -> Self:
         if "point" not in self.params:
             self.params["point"] = []
 
-        self.params["point"].append(f"{lon},{lat}")
+        # CMR rejects scientific notation in point query parameters.
+        lon_as_str = format(Decimal(str(lon)), "f")
+        lat_as_str = format(Decimal(str(lat)), "f")
+
+        if "." not in lon_as_str:
+            lon_as_str += ".0"
+
+        if "." not in lat_as_str:
+            lat_as_str += ".0"
+
+        self.params["point"].append(f"{lon_as_str},{lat_as_str}")
 
         return self
 
diff --git a/tests/test_granule.py b/tests/test_granule.py
index fbf188f..9a61496 100644
--- a/tests/test_granule.py
+++ b/tests/test_granule.py
@@ -505,6 +505,12 @@ def test_valid_parameters(self):
         self.assertEqual(query.params["version"], "003")
         self.assertEqual(query.params["point"], ["-100.0,42.0"])
 
+    def test_point_avoids_scientific_notation(self):
+        query = GranuleQuery().short_name("FOO").point(42, 0.00001)
+
+        self.assertEqual(query.params["point"], ["42.0,0.00001"])
+        self.assertIn("point[]=42.0,0.00001", query._build_url())
+
     def test_invalid_parameters(self):
         query = GranuleQuery()