iotman (49)in #science • 2 days ago🌌 SpacePicture of a Day: Parhelia at Abisko 🪐Three suns seem to hug the horizon in this otherworldly winterscape. But the evocative scene was captured during a February 3rd snowmobile exploration of the mountainous region…iotman (49)in #science • 3 days ago🌌 SpacePicture of a Day: A Cosmic Rose: NGC 2237 in Monoceros 🪐The Rosette Nebula, NGC 2237, is not the only cosmic cloud of gas and dust to evoke the imagery of flowers, but it is probably the most famous. At the edge of a large molecular…iotman (49)in #science • 4 days ago🌌 SpacePicture of a Day: Reflections on VdB 31 🪐Riding high in the constellation of Auriga, beautiful, blue VdB 31 is the 31st object in Sidney van den Bergh's 1966 catalog of reflection nebulae. It shares this well-composed…iotman (49)in #science • 6 days ago🌌 SpacePicture of a Day: The Spider and the Fly 🪐Will the spider ever catch the fly? Not if both are large emission nebulas toward the constellation of the Charioteer (Auriga). The spider-shaped gas cloud in the image center…iotman (49)in #science • 7 days ago🌌 SpacePicture of a Day: Auroral Hummingbird over Norway 🪐Is this the largest hummingbird ever? Although it may look like a popular fluttering nectarivore, what is pictured is actually a beautifully detailed and colorful aurora…iotman (49)in #science • 8 days ago🌌 SpacePicture of a Day: Milky Way over the Australian Pinnacles 🪐What strange world is this? Earth. In the foreground of the featured image are the Pinnacles, unusual rock spires in Nambung National Park in Western Australia. Made of ancient…iotman (49)in #science • 9 days ago🌌 SpacePicture of a Day: A Conjunction of Crescents 🪐A waxing crescent Moon and a waning crescent Venus are found at opposite corners of this twilight telephoto field of view. The close conjunction of the two brightest celestial…iotman (49)in #science • 10 days ago🌌 SpacePicture of a Day: LEDA 1313424: The Bullseye Galaxy 🪐The giant galaxy cataloged as LEDA 1313424 is about two and a half times the size of our own Milky Way. Its remarkable appearance in this recently released Hubble Space Telescope…iotman (49)in #science • 11 days ago🌌 SpacePicture of a Day: IC 2574: Coddington's Nebula 🪐Grand spiral galaxies often seem to get all the glory, flaunting their young, bright, blue star clusters in beautiful, symmetric spiral arms. But small, irregular galaxies form…iotman (49)in #science • 13 days ago🌌 SpacePicture of a Day: Anticrepuscular Rays: A Rainbow Fan over Spain 🪐Yes, but can your rainbow do this? Late in the day, the Sun set as usual toward the west. However, on this day, the more interesting display was 180 degrees around -- toward the…iotman (49)in #science • 15 days ago🌌 SpacePicture of a Day: Comet G3 ATLAS Disintegrates 🪐What's happening to Comet G3 ATLAS? After passing near the Sun in mid-January, the head of the comet has become dimmer and dimmer. By late January, Comet C/2024 G3 (ATLAS) had…iotman (49)in #science • 16 days ago🌌 SpacePicture of a Day: Nacreous Clouds over Sweden 🪐Vivid and lustrous, wafting iridescent waves of color wash across this skyscape from northern Sweden. Known as nacreous clouds or mother-of-pearl clouds, they are rare. But their…iotman (49)in #science • 17 days ago🌌 SpacePicture of a Day: The Variable Nebula NGC 2261 🪐The interstellar cloud of dust and gas captured in this sharp telescopic snapshot is seen to change its appearance noticeably over periods as short as a few weeks. Discovered…iotman (49)in #science • 18 days ago🌌 SpacePicture of a Day: Hydrogen Clouds of M33 🪐Gorgeous spiral galaxy Messier 33 seems to have more than its fair share of glowing hydrogen gas. A prominent member of the local group of galaxies, M33 is also known as the…iotman (49)in #science • 19 days ago🌌 SpacePicture of a Day: Dust Shells around WR 140 from Webb 🪐What are those strange rings? Rich in dust, the rings are likely 3D shells -- but how they were created remains a topic of research. Where they were created is well known: in a…iotman (49)in #science • 20 days ago🌌 SpacePicture of a Day: Comet G3 ATLAS over Uruguay 🪐Comets can be huge. When far from the Sun, a comet's size usually refers to its hard nucleus of ice and rock, which typically spans a few kilometers -- smaller than even a small…iotman (49)in #science • 21 days ago🌌 SpacePicture of a Day: Pleiades over Half Dome 🪐Stars come in bunches. The most famous bunch of stars on the sky is the Pleiades, a bright cluster that can be easily seen with the unaided eye. The Pleiades lies only about…iotman (49)in #science • 22 days ago🌌 SpacePicture of a Day: The Many Tails of Comet G3 ATLAS 🪐Why does this comet have so many tails? C/2024 G3 (ATLAS) has developed several long and intricate tails visible from Earth's southern hemisphere over the past two weeks. Many…iotman (49)in #science • 23 days ago🌌 SpacePicture of a Day: Stardust in the Perseus Molecular Cloud 🪐Clouds of stardust drift through this deep skyscape, across the Perseus molecular cloud some 850 light-years away. Dusty nebulae reflecting light from embedded young stars stand…iotman (49)in #science • 24 days ago🌌 SpacePicture of a Day: Comet G3 ATLAS: a Tail and a Telescope 🪐Comet C/2024 G3 ATLAS has made a dramatic appearance in planet Earth's skies. A visitor from the distant Oort Cloud, the comet reached its perihelion on January 13. On January…
