Aboriginal Australians Observed Red Giant Stars’ Variability

New interpretations of oral accounts by Aboriginal Australians show that they included references to the variability of red giants Antares, Betelgeuse, and Aldebaran.

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Busy Skies Ahead: Comets, a Supernova, and a Dramatic Regulus Occultation

What’s your pleasure when it comes to observing? Comets? Supernovae? Occultations? Get a sample of each and more in the upcoming week.

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Ancient Moon Had Atmosphere Made of Volcano Smoke

Roughly 3.5 billion years ago huge volcanoes released enough gas to cover the Moon with a thin atmosphere that was visible from Earth. We are used to picturing the Moon as a quiet place of “magnificent desolation,” its otherworldly peace disturbed only by the occasional meteorite impact or rare terrestrial spacecraft landing. But 3 or 4 billion years ago, it might have looked very different. After forming around 4.5 billion […]

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