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Seismic waves deep inside Saturn create visible oscillations in the rings...revealing that the planet has a huge, fluffy core 17 times the mass of the Earth. Amazing detective work. https://t.co/TMR1Rs8YCo
The universe is a spiderweb. Galaxies follow the lines of the web, like trapped fireflies. https://t.co/l3O4m72D4R
Remarkable fossil find: An oviraptor dinosaur fossilized atop its next, with intact embryos inside its almost-hatched eggs, in China's Nanxiong Formation. https://t.co/DT1lbqiir6
A panorama of glowing gas & newborn stars in Gemini, seen by the Hubble telescope. AFGL 5180 lacks a poetic name, but to me this scene has the same majesty as the famous "pillars of creation" image. (With props to @SpaceGeck) https://t.co/XmRY9KVw3D
Computer modeling of fossil ear structures indicates that Neanderthals were able to hear & produce complex speech, much like modern humans (and unlike earlier hominids). https://t.co/7tMBusDlyE
Labeled version of Venus indicates where Aphrodite Terra, a vast highland, is visible through the clouds. The streaks are caused by dust & by cosmic rays hitting the probe's sensors. https://t.co/U7P0xFGQQx
The Ingenuity Mars helicopter is a marvel of lightweight, low-cost engineering. It runs on 6 off-the-shelf Sony lithium-ion batteries, about $5 each. https://t.co/6IzJO9ZyVC
First image of Mars from the UAE's @HopeMarsMission. Much more to come. https://t.co/C3CcWvUbtL
Over the past three months, a sudden stratospheric warming split apart Earth's polar vortex & shifted weather patterns in the northern hemisphere. The Aeolus satellite caught it happening. https://t.co/adRSjxQqfl
Photographer J-P Metsavainio spent more than 10 years assembling a grand panorama of the stars and gas clouds running across the summer sky. The gorgeous result: https://t.co/FhEs4r5Qoq