A diamond ring... in space! - BBC Science Focus Magazine
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Mysterious Black Ring Seen Over Lahore In Viral Video. It Could Be...
APOD: 2017 August 25 - Diamond Ring in a Cloudy Sky
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Possible large smoke ring seen in sky over Clinton Township
This Black Smoke Ring Is Amazing, But It's No Mystery
UFO alert! Mysterious black ring hovers in the sky above a Montana ranch - can you guess what it is? | Daily Mail Online
Watch 'ring of fire' solar eclipse light up the sky - CNN Video
VIDEO: Strange black circle spotted in sky over Salt Lake City is from Supercross event | KUTV
News 3 viewers curious about black smoke ring in Las Vegas sky — so are we | KSNV
Mysterious Smoke Ring Floats Over California City - Videos from The Weather Channel | weather.com
Explosions at Popocatépetl and "Smoke" Rings at Etna | WIRED
What makes a halo around the sun or moon? | Space | EarthSky
Stand under the ring of fire | Astronomy.com
News 3 viewers curious about black smoke ring in Las Vegas sky — so are we | KSNV
Is this a UFO? Footage shows mysterious black ring floating in sky before vanishing into thin air - Daily Record
September halos: Ring wraiths in the sky - Hudson Valley One
Explaining the shining ring in Fresno's sky | YourCentralValley.com
This Black Smoke Ring Is Amazing, But It's No Mystery
This Black Smoke Ring Is Amazing, But It's No Mystery
Watch: Black ring filmed over Nottinghamshire - UPI.com
Diamond of Three Rings - Sky & Telescope - Sky & Telescope
Solar Totality - the Diamond Ring - Sky & Telescope - Sky & Telescope
