iotman (59)in #science • 10 days ago🌌 SpacePicture of a Day: Supernova Remnants Big and Small 🪐What happens after a star explodes? A huge fireball of hot gas shoots out in all directions. When this gas slams…iotman (59)in #science • 11 days ago🌌 SpacePicture of a Day: A New Year's Aurora and SAR Arc 🪐It was a new year, and the sky was doubly red. The new year meant that the Earth had returned to its usual place in…iotman (59)in #science • 12 days ago🌌 SpacePicture of a Day: Colliding Spiral Galaxies from Webb and Hubble 🪐Billions of years from now, only one of these two galaxies will remain. Until then, spiral galaxies NGC 2207 and IC…iotman (59)in #science • 14 days ago🌌 SpacePicture of a Day: Welcome to Perihelion 🪐rth's orbit around the Sun is not a circle, it's an ellipse. The point along its elliptical orbit where our fair…iotman (59)in #science • 15 days ago🌌 SpacePicture of a Day: Eclipse Pair 🪐clipses tend to come in pairs. Twice a year, during an eclipse season that lasts about 34 days, Sun, Moon, and Earth…iotman (59)in #science • 16 days ago🌌 SpacePicture of a Day: Solar Analemma 2024 🪐Recorded during 2024, this year-spanning series of images reveals a pattern in the seasonal drift of the Sun's daily…iotman (59)in #science • 17 days ago🌌 SpacePicture of a Day: Alpha Centauri: The Closest Star System 🪐The closest star system to the Sun is the Alpha Centauri system. Of the three stars in the system, the dimmest --…iotman (59)in #science • 18 days ago🌌 SpacePicture of a Day: The Twisted Disk of NGC 4753 🪐What do you think this is? Here’s a clue: it's bigger than a bread box. Much bigger. The answer is that pictured NGC…iotman (59)in #science • 19 days ago🌌 SpacePicture of a Day: M27: The Dumbbell Nebula 🪐Is this what will become of our Sun? Quite possibly. The first hint of our Sun's future was discovered inadvertently…iotman (59)in #science • 20 days ago🌌 SpacePicture of a Day: Methane Bubbles Frozen in Lake Baikal 🪐What are these bubbles frozen into Lake Baikal? Methane. Lake Baikal, a UNESCO World Heritage Site in Russia, is the…iotman (59)in #science • 21 days ago🌌 SpacePicture of a Day: A December Winter Night 🪐Orion seems to come up sideways, climbing over a distant mountain range in this deep skyscape. The wintry scene was…iotman (59)in #science • 22 days ago🌌 SpacePicture of a Day: Planet Earth at Twilight 🪐No sudden, sharp boundary marks the passage of day into night in this gorgeous view of ocean and clouds over our fair…iotman (59)in #science • 23 days ago🌌 SpacePicture of a Day: Grand Spiral NGC 5643 🪐Viewed face-on, grand spiral galaxy NGC 5643 has a festive appearance in this colorful cosmic portrait. Some 55…iotman (59)in #science • 24 days ago🌌 SpacePicture of a Day: Diamond Dust Sky Eye 🪐Why is there a huge eye in the sky? Diamond dust. That is an informal term for small ice crystals that form in the air…iotman (59)in #science • 25 days ago🌌 SpacePicture of a Day: Fox Fur, Cone, and Christmas Tree 🪐What do the following things have in common: a cone, the fur of a fox, and a Christmas tree? Answer: they all occur…iotman (59)in #science • 26 days ago🌌 SpacePicture of a Day: Christmas Tree Aurora 🪐It was December and the sky lit up like a Christmas tree. Shimmering, the vivid green, blue, and purple auroral colors…iotman (59)in #science • 27 days ago🌌 SpacePicture of a Day: The Local Fluff 🪐The stars are not alone. In the disk of our Milky Way Galaxy, about 10 percent of visible matter is in the form of…iotman (59)in #science • 28 days ago🌌 SpacePicture of a Day: A Year in Sunsets 🪐A year in sunsets, from April 2023 to March 2024, track along the western horizon in these stacked panoramic views.…iotman (59)in #science • 29 days ago🌌 SpacePicture of a Day: The Long Night Moon 🪐On the night of December 15, the Full Moon was bright. Known to some as the Cold Moon or the Long Night Moon, it was…iotman (59)in #science • last month🌌 SpacePicture of a Day: Messier 2 🪐After the Crab Nebula, this giant star cluster is the second entry in 18th century astronomer Charles Messier's famous…
