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#aurora

16 posts16 participants2 posts today

It’s a year ago tonight that I was fortunate to witness one of the best displays of the Aurora Borealis that I have seen. The amazing thing is that this was mainly present in the southern sky with the whole southern arc lit up with the bold colours and easily visibly to the naked eye. Amazing stuff and a memorable night #Aurora #NorthernLights #Aberdeenshire #Scotland

Seems like #Amazon #AWS recently deprecated #aurora #serverless v1, which I loved using for personal projects due to its auto sleep feature that made it affordable.

Not with v2 the minimum is about $40/month…. Bringing me back to having my own VPS instance dedicated to just hosting a relational database for my projects

I finally got a chance to work on some of I-was-trying-for-the-Milky-Way-but-accidentally-saw-an-aurora pictures from a week-ish ago. I'm pretty happy with how this one turned out. I didn't hype up the aurora colors here at all.

This image is from Sun Lakes-Dry Falls State Park in central Washington State. These high desert gorges were carved by Ice Age floods.

Everyone thinks of moss and rainforest when they think of Washington State, but east of the Cascades is a whole different story.

Seeking Uranus’s Spin

Uranus is one of our solar system’s oddest planets. An ice giant, it spins on its side. We originally estimated its rate of rotation using measurements from Voyager 2, the only spacecraft to have visited the planet. But that measurement was so imprecise that within two years, astronomers could no longer use it to predict where the planet’s poles were. Now a new study, drawing on over a decade of Hubble observations of Uranus’s auroras, has pinned down the planet’s rotation rate far more precisely: 17 hours, 14 minutes, and 52 seconds. While that’s within the original measurement’s 36-second margin of error, the new measurement has a margin of error of only 0.036 seconds. In addition to helping plan a theoretical future Uranus mission, this more accurate rotation rate allows researchers to reexamine decades of data, now with certainty about the planet’s orientation at the time of the observation. (Image credit: ESA/Hubble, NASA, L. Lamy, L. Sromovsky; research credit: L. Lamy et al.; via Gizmodo)

Polarlichter sind nicht nur ein visuelles Spektakel – sie machen auch Geräusche! 🔊✨ Forschende aus Finnland zeigen, dass elektrische Entladungen in der Luft etwa 70 Meter über dem Boden knisternde Sounds erzeugen. 🌌❄️ Viele hören das Knallen, ohne es als Polarlicht zu erkennen. #Aurora #Polarlichter #Naturwunder #Forschung #HörbaresLicht #Finnland #Wissenschaft #oldnewz

deutschlandfunknova.de/nachric

Deutschlandfunk NovaPolarlichter kann man auch hörenPolarlichter machen auch Geräusche. Und man kann sie auch dann hören, wenn man die Lichter nicht sehen kann.