| May 3 Comet Halley's 2 Meteor Showers | | | |
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| | Comet Halley's 2 meteor showers | | It's because comets like Halley are so crumbly that we see annual meteor showers. One shower spawned by this comet is going on now. Another is visible in October. | | | Video: Close-approach comets | | ScienceCast video from NASA about comets passing near Earth in 2017 and 2018, and about how scientists are studying them. Plus photos from our community! | | | | What's the birthstone for May? | | Happy birthday May babies! Your birthstone, the emerald, is a type of beryl colored green by chromium. Perfect emeralds are among the rarest of gemstones. | | | | | |
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| | | Tonight and tomorrow night … Moon and Regulus | Regulus is the brightest star in Leo the Lion, and brightest in a backwards-question-mark star pattern known as The Sickle. | | | | |
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| | Big Dipper over Chile | Yuri Beletsky shared this photo on EarthSky's Facebook page. Our friends loved it, and there were a few comments like this one: "Can't get used to you crazy Southerners and your upside-down constellations!" | | | |
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