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About 70 million light-years distant, gorgeous spiral galaxy NGC 289 is larger than our own Milky Way. Seen nearly face-on, its bright core and colorful central disk give way to remarkably faint, bluish spiral arms https://t.co/QSQOSmBflk
It's a quite rare event, but you can happen to see a perfect circle made of ice spinning in a river, like this one spotted in a Michigan river in January 2017 [full video: https://t.co/WUyfzHkkPw] [explanation: https://t.co/81zKL9lLaU]
Storm over White Sands National Monument, New Mexico https://t.co/Xi3z1jvbMm [photo by Tim Williams]
'All we are is dust in the interstellar wind': this animation shows a 3D rendering of dust, as viewed in a several-kiloparsec (thousands of light years) loop through and out of the Milky Way's galactic plane https://t.co/MT7LJv7frf
Global weather patterns are oddly beautiful https://t.co/8Gzq7lh3Kd
Coral spawning is a rare natural wonder: if you are a snorkeler and point your torch into the darkened waters of the Great Barrier Reef, you can happen to catch coral polyps simultaneously release egg and sperm bundles for external fertilisation https://t.co/BjKYH21jTN
Spinning things have surprising physics. This unique top has the shape of a prolate elIipsoid: the ratio of the semi minor (short) axis to the semi major (long) axis is made equal to the mathematical constant the golden ratio φ (phi) https://t.co/5HPAKIOEi7
Aeoliscus strigatus, also known as the razorfish, adopts a head-down tail-up position as an adaptation for hiding among sea urchin spines https://t.co/iaKr7t9sLC
When mixing liquids of different temperatures, they will come to equilibrium. The cooler liquid will warm up while the warmer liquid cools down. By looking at systems in infrared we can see their temperature and watch this heat exchange occur https://t.co/7vwJ6tkk6T
Jupiter looks quite different in infrared light. Featured here in 2016, three bands of near-infrared light coming from #Hubble observations, have been digitally reassigned into a mapped color image https://t.co/uFTDRfw6L8