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Updated: 2 hours 49 min ago
Giant telescope mirror gets a cleaning | Space photo of the day for June 17, 2025
Staff at the European Southern Observatory have a system to clean the La Silla Observatory's delicate mirrors without breaking them.
Categories: Astronomy
Huge galaxy cluster is wrapped in a cocoon 20 million light-years wide, NASA space telescope finds
Using NASA's Chandra X-ray space telescope, astronomers have discovered an entire galaxy cluster wrapped in a 20 million light-year-wide envelope of charged particles.
Categories: Astronomy
50 years later, Apollo 17’s moon samples are still revealing secrets about lunar volcanoes
The beads are over 3.3 billion years old, and date from the formation of the "Man in the Moon."
Categories: Astronomy
