Update meteorite landings: 45,716 records

README.md

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+---
+license: cc-by-4.0
+pretty_name: "Meteorite Landings"
+language:
+  - en
+description: "NASA's comprehensive database of all known meteorite landings on Earth, with classification, mass, coordinates, and discovery context."
+task_categories:
+  - tabular-classification
+  - tabular-regression
+tags:
+  - space
+  - meteorites
+  - planetary-science
+  - nasa
+  - open-data
+  - tabular-data
+size_categories:
+  - 10K<n<100K
+configs:
+  - config_name: default
+    data_files:
+      - split: train
+        path: data/meteorite_landings.parquet
+    default: true
+---
+
+# Meteorite Landings
+
+*Part of the [Planetary Science Datasets](https://huggingface.co/collections/juliensimon/planetary-science-datasets-69c2d4683bd6a66c34fb4af2) collection on Hugging Face.*
+
+NASA's comprehensive catalog of all known meteorite landings on Earth -- **45,716** records
+spanning **1688** to **2013**, including 1,107 observed falls and 44,609 found specimens
+across 466 classification types.
+
+## Dataset description
+
+This dataset contains every meteorite recorded in NASA's Meteorite Landings database,
+sourced from The Meteoritical Society. Each record includes the meteorite's name,
+classification, mass (where known), geographic coordinates, and whether the meteorite
+was observed falling ("Fell") or found after the fact ("Found").
+
+## Schema
+
+| Column | Type | Description |
+|--------|------|-------------|
+| `name` | string | Official meteorite name |
+| `id` | int64 | Unique identifier |
+| `nametype` | string | Name type: "Valid" or "Relict" |
+| `recclass` | string | Meteorite classification (e.g. L5, H6, Iron-IVA) |
+| `mass` | float64 | Mass in grams |
+| `mass_kg` | float64 | Mass in kilograms |
+| `fall` | string | "Fell" (observed fall) or "Found" (discovered later) |
+| `year` | datetime | Year of fall or discovery |
+| `reclat` | float64 | Recovery latitude (decimal degrees) |
+| `reclong` | float64 | Recovery longitude (decimal degrees) |
+
+## Quick stats
+
+- **45,716** meteorite landings (1688--2013)
+- **1,107** observed falls, **44,609** found specimens
+- **45,585** records with known mass
+- **466** distinct classification types
+- Heaviest: **Hope** at **60,000.0 kg** (Iron, IVB)
+
+## Usage
+
+```python
+from datasets import load_dataset
+
+ds = load_dataset("juliensimon/meteorite-landings", split="train")
+df = ds.to_pandas()
+
+# Observed falls sorted by mass
+fell = df[df["fall"] == "Fell"].sort_values("mass_kg", ascending=False)
+
+# Meteorites by classification
+by_class = df["recclass"].value_counts().head(20)
+
+# Map of all landings with coordinates
+with_coords = df.dropna(subset=["reclat", "reclong"])
+```
+
+## Data source
+
+[NASA Open Data Portal -- Meteorite Landings](https://data.nasa.gov/dataset/meteorite-landings),
+maintained by The Meteoritical Society. Full dataset mirrored by the
+[Wolfram Data Repository](https://datarepository.wolframcloud.com/resources/Meteorite-Landings)
+(NASA retired the original Socrata SODA API in 2025).
+
+## Update schedule
+
+Static dataset (meteorite records are updated infrequently).
+
+## Related datasets
+
+- [neo-close-approaches](https://huggingface.co/datasets/juliensimon/neo-close-approaches) -- Near-Earth object close approaches from NASA JPL
+- [confirmed-exoplanets](https://huggingface.co/datasets/juliensimon/confirmed-exoplanets) -- NASA Exoplanet Archive confirmed planets
+- [impact-risk](https://huggingface.co/datasets/juliensimon/impact-risk) -- Sentry impact risk assessments
+
+## Pipeline
+
+Source code: [juliensimon/space-datasets](https://github.com/juliensimon/space-datasets)
+
+## Citation
+
+```bibtex
+@dataset{meteorite_landings,
+  author = {Simon, Julien},
+  title = {Meteorite Landings},
+  year = {2026},
+  publisher = {Hugging Face},
+  url = {https://huggingface.co/datasets/juliensimon/meteorite-landings},
+  note = {Based on NASA/The Meteoritical Society meteorite landing data via Wolfram Data Repository}
+}
+```
+
+## License
+
+[CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/)

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