200323y ago
Observatory
Spitzer Space Telescope launched
The final Great Observatory, Spitzer studied the infrared universe for 16 years — revealing dust-shrouded star births and the first direct detection of exoplanet light.
On This Day in Space
The final Great Observatory, Spitzer studied the infrared universe for 16 years — revealing dust-shrouded star births and the first direct detection of exoplanet light.
Twelve years and 4.5 billion kilometres after launch, Voyager 2 gave humanity its first and still only close-up look at Neptune and its moon Triton.