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Test your knowledge of astronomy:Question: What did Edwin Hubble use to make his discovery about distant galaxies?ANSWER: 100- inch Hooker Reflector Telescope
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Skytalk is hosted by WHYY's Dave Heller. Each week he discusses the latest news in astronomy with Dr. Derrick H. Pitts of the Franklin Institute.
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6 hours ago
Unidentified drones: Experts explain the unexplained
Reports of drone sightings continue to cause concern. What started in New Jersey weeks ago, has spread to sightings in other areas, including the Philadelphia suburbs.
Air Date: December 17, 2024 12:00 pm
Listen 51:39
Is that a drone or a plane? Experts help explain the differences
Dozens of mysterious nighttime flights first spotted in New Jersey last month and now being seen across the U.S. have raised concerns among residents and officials.
1 day ago