COBE

Space-based · 1989 · Low Earth orbit, 900 km

Notes

Measured the microwave background as the most perfect black body ever observed, then found the faint anisotropies that are the seeds of every galaxy.

discovery

Open on the Cosmic Exploration shelf — the interactive card, the filters, and everything alongside it.

From the Observatories database in Notion, last edited 2026-08-15. This page is the row, rendered by the build; nothing on it is written by hand.