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Explanation: What's that pale blue dot in this image taken from Saturn? Earth. The robotic Cassini spacecraft looked back toward its old home world earlier this month as it orbited Saturn. Using Saturn itself to block the bright Sun, Cassini imaged a faint dot on the right of the above photograph. That dot is expanded on the image inset, where a slight elongation in the direction of Earth's Moon is visible. Vast water oceans make Earth's reflection of sunlight somewhat blue. Earth is home to over six billion humans and over 100 octillion Prochlorococcus.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: Earth - Moon - Saturn
Publications with words: Earth - Moon - Saturn
See also:
- APOD: 2025 June 18 B Space Station Silhouette on the Moon
- APOD: 2025 June 15 B Two Worlds One Sun
- APOD: 2025 April 22 B Terminator Moon: A Moonscape of Shadows
- Moon Near the Edge
- APOD: 2025 April 8 B Moon Visits Sister Stars
- APOD: 2025 April 6 B Moonquakes Surprisingly Common
- Lunar Dust and Duct Tape