BlogHide Resteemsiotman (59)in science • yesterday🌌 SpacePicture of a Day: NGC 4414: A Flocculent Spiral Galaxy 🪐How much mass do flocculent spirals hide? The featured image of flocculent spiral galaxy NGC 4414 was taken with the Hubble Space Telescope to help answer this question. Flocculent spirals --…iotman (59)in science • 2 days ago🌌 SpacePicture of a Day: Moonquakes Surprisingly Common 🪐Why are there so many moonquakes? Analyses of seismometers left on the moon during the Apollo moon landings reveal a surprising number of moonquakes occurring within 100 kilometers of the…iotman (59)in science • 3 days ago🌌 SpacePicture of a Day: The Gargoyles' Eclipse 🪐In dramatic silhouette against a cloudy daytime sky over Paris, France, gargoyles cast their monstrous gaze outward from the west facade of Notre Dame Cathedral. Taken on March 29, this telephoto…iotman (59)in science • 4 days ago🌌 SpacePicture of a Day: Hickson 44 in Leo 🪐Scanning the skies for galaxies, Canadian astronomer Paul Hickson and colleagues identified some 100 compact groups of galaxies, now appropriately called Hickson Compact Groups. The four prominent…iotman (59)in science • 5 days ago🌌 SpacePicture of a Day: The Da Vinci Glow 🪐A 26 hour old Moon poses behind the craggy outline of the Italian Dolomites in this twilight mountain and skyscape. The one second long exposure was captured near moonset on March 30. And while only…iotman (59)in science • 6 days ago🌌 SpacePicture of a Day: Jupiter and Ring in Infrared from Webb 🪐Why does Jupiter have rings? Jupiter's main ring was discovered in 1979 by NASA's passing Voyager 1 spacecraft, but its origin was then a mystery. Data from NASA's Galileo spacecraft that orbited…iotman (59)in science • 9 days ago🌌 SpacePicture of a Day: A Partial Solar Eclipse over Iceland 🪐What if the Sun and Moon rose together? That happened yesterday over some northern parts of planet Earth as a partial solar eclipse occurred shortly after sunrise. Regions that experienced the Moon…iotman (59)in science • 10 days ago🌌 SpacePicture of a Day: Stereo Helene 🪐Get out your red/blue glasses and float next to Helene, small, icy moon of Saturn. Appropriately named, Helene is a Trojan moon, so called because it orbits at a Lagrange point. A Lagrange point is…iotman (59)in science • 11 days ago🌌 SpacePicture of a Day: Lunar Dust and Duct Tape 🪐Why is the Moon so dusty? On Earth, rocks are weathered by wind and water, creating soil and sand. On the Moon, eons of constant micrometeorite bombardment have blasted away at the rocky surface…iotman (59)in science • 12 days ago🌌 SpacePicture of a Day: Messier 81 🪐One of the brightest galaxies in planet Earth's sky is similar in size to our Milky Way Galaxy: big, beautiful Messier 81. Also known as NGC 3031 or Bode's galaxy for its 18th century discoverer…iotman (59)in science • 13 days ago🌌 SpacePicture of a Day: Star Formation in the Pacman Nebula 🪐You'd think the Pacman Nebula would be eating stars, but actually it is forming them. Within the nebula, a cluster's young, massive stars are powering the pervasive nebular glow. The eye-catching…iotman (59)in science • 14 days ago🌌 SpacePicture of a Day: A Blue Banded Blood Moon 🪐What causes a blue band to cross the Moon during a lunar eclipse? The blue band is real but usually quite hard to see. The featured HDR image of last week's lunar eclipse, however -- taken from…iotman (59)in science • 16 days ago🌌 SpacePicture of a Day: Ancient Ogunquit Beach on Mars 🪐This was once a beach -- on ancient Mars. The featured 360-degree panorama, horizontally compressed, was taken in 2017 by the robotic Curiosity rover that explored the red planet. Named Ogunquit…iotman (59)in science • 17 days ago🌌 SpacePicture of a Day: SuperCam Target on Ma'az 🪐What's the sound of one laser zapping? There's no need to consult a Zen master to find out, just listen to the first acoustic recording of laser shots on Mars. On Mars Rover Perseverance mission sol…iotman (59)in science • 18 days ago🌌 SpacePicture of a Day: The Leo Trio 🪐This popular group leaps into the early evening sky around the March equinox and the northern hemisphere spring. Famous as the Leo Triplet, the three magnificent galaxies found in the prominent…iotman (59)in science • 19 days ago🌌 SpacePicture of a Day: The Solar Eclipse Analemma Project 🪐Recorded from 2024 March 10, to 2025 March 1, this composited series of images reveals a pattern in the seasonal drift of the Sun's daily motion through planet Earth's sky. Known to some as an…iotman (59)in science • 20 days ago🌌 SpacePicture of a Day: Blue Ghost's Diamond Ring 🪐On March 14 the Full Moon slid through Earth's dark umbral shadow and denizens of planet Earth were treated to a total lunar eclipse. Of course, from the Moon's near side that same astronomical…iotman (59)in science • 21 days ago🌌 SpacePicture of a Day: LDN 1235: The Shark Nebula 🪐There is no sea on Earth large enough to contain the Shark nebula. This predator apparition poses us no danger as it is composed only of interstellar gas and dust. Dark dust like that featured here…iotman (59)in science • 23 days ago🌌 SpacePicture of a Day: Venus and the Triply Ultraviolet Sun 🪐This was a very unusual type of solar eclipse. Typically, it is the Earth's Moon that eclipses the Sun. In 2012, though, the planet Venus took a turn. Like a solar eclipse by the Moon, the phase…iotman (59)in science • 24 days ago🌌 SpacePicture of a Day: Tololo Totality 🪐On March 14 the Moon was Full. In an appropriate celebration of Pi day, that put the Moon 3.14 radians (180 degrees) in ecliptic longitude from the Sun in planet Earth's sky. As a bonus for fans of…
