Similar items by topic, tags, and provider (metadata-only).
datasetwebbook.nist.gov
webbook.nist.gov
Access: open. Thermochemical/spectral/reference data (energy transfer + materials)
datasetphysics.nist.gov
physics.nist.gov
Access: open. Spectral lines/levels (frequencies/energies) for physics/engineering
datasetNASA
NASA
NASA metadata portal for open datasets spanning science, aeronautics, Earth, and exploration.
datasetdata.europa.eu
data.europa.eu
European Union open data
datasetdata.nasa.gov
data.nasa.gov
Access: open. NASA datasets
datasetopenscience.cern
openscience.cern
Access: open. LHC and experiment data
datasettogether.ai
together.ai
Access: open. Pretraining mix
datasetdata.gov.uk
data.gov.uk
UK open data portal
datasetdata.gov
data.gov
US government open data
datasetpdg.lbl.gov
pdg.lbl.gov
Access: open. Particle properties & tables
datasetcaida.org
caida.org
Access: mixed. Catalog of CAIDA datasets
datasetdata.worldbank.org
data.worldbank.org
Access: open. Development indicators