BlogHide Resteemsiotman (59)inΒ scienceΒ β’Β 7 hours agoπ SpacePicture of a Day: Dark Sand Cascades on Mars πͺAre these trees growing on Mars? No. Groups of dark brown streaks have been photographed by the Mars Reconnaissance Orbiter on melting pinkish sand dunes covered with light frost. The featuredβ¦iotman (59)inΒ scienceΒ β’Β yesterdayπ SpacePicture of a Day: Lunar Farside πͺTidally locked in synchronous rotation, the Moon always presents its familiar nearside to denizens of planet Earth. From lunar orbit, the Moon's farside can become familiar, though. In fact thisβ¦iotman (59)inΒ scienceΒ β’Β 2 days agoπ SpacePicture of a Day: Messier 109 πͺBig beautiful barred spiral galaxy Messier 109 is the 109th entry in Charles Messier's famous catalog of bright Nebulae and Star Clusters. You can find it just below the Big Dipper's bowl in theβ¦iotman (59)inΒ scienceΒ β’Β 3 days agoπ SpacePicture of a Day: The Seagull Nebula πͺAn interstellar expanse of glowing gas and obscuring dust presents a bird-like visage to astronomers from planet Earth, suggesting its popular moniker, the Seagull Nebula. This broadband portrait ofβ¦iotman (59)inΒ scienceΒ β’Β 4 days agoπ SpacePicture of a Day: Rubin's First Look: A Sagittarius Skyscape πͺThis interstellar skyscape spans over 4 degrees across crowded starfields toward the constellation Sagittarius and the central Milky Way. A First Look image captured at the new NSFβDOE Vera C. Rubinβ¦iotman (59)inΒ scienceΒ β’Β 5 days agoπ SpacePicture of a Day: In the Center of Spiral Galaxy M61 πͺIs there a spiral galaxy in the center of this spiral galaxy? Sort of. Image data from the Hubble Space Telescope, the European Southern Observatory, and smaller telescopes on planet Earth areβ¦iotman (59)inΒ scienceΒ β’Β 6 days agoπ SpacePicture of a Day: W5: Pillars of Star Formation πͺHow do stars form? Images of the star forming region W5 like those in the infrared by NASA's Wide Field Infrared Survey Explorer (WISE, later NEOWISE) satellite provide clear clues with indicationsβ¦iotman (59)inΒ scienceΒ β’Β 7 days agoπ SpacePicture of a Day: A Berry Bowl of Martian Spherules πͺHow were these unusual Martian spherules created? Thousands of unusual gray spherules made of iron and rock and dubbed blueberries were found embedded in and surrounding rocks near the landing siteβ¦iotman (59)inΒ scienceΒ β’Β 8 days agoπ SpacePicture of a Day: Two Worlds, Two Analemmas πͺSure, that figure-8 shaped curve you get when you mark the position of the Sun in Earth's sky at the same time each day over one year is called an analemma. On the left, Earth's figure-8 analemmaβ¦iotman (59)inΒ scienceΒ β’Β 9 days agoπ SpacePicture of a Day: Major Lunar Standstill 2024-2025 πͺdmonton, Alberta, Canada, planet Earth lies on the horizon. in this stack of panoramic composite images. In a monthly time series arranged vertically top to bottom the ambitious photographic projectβ¦iotman (59)inΒ scienceΒ β’Β 10 days agoπ SpacePicture of a Day: NGC 3521: Galaxy in a Bubble πͺGorgeous spiral galaxy NGC 3521 is a mere 35 million light-years away, toward the northern springtime constellation Leo. Relatively bright in planet Earth's sky, NGC 3521 is easily visible in smallβ¦iotman (59)inΒ scienceΒ β’Β 12 days agoπ SpacePicture of a Day: Rosette Nebula Deep Field πͺCan you find the Rosette Nebula? The red flowery-looking nebula just above the image center may seem a good choice, but that's not it. The famous Rosette Nebula is really located on the lowerβ¦iotman (59)inΒ scienceΒ β’Β 13 days agoπ SpacePicture of a Day: APOD is 30 Years Old Today πͺAPOD is 30 years old today. In celebration, today's picture uses past APODs as tiles arranged to create a single pixelated image that might remind you of one of the most well-known and evocativeβ¦iotman (59)inΒ scienceΒ β’Β 14 days agoπ SpacePicture of a Day: Two Worlds, One Sun πͺHow different does sunset appear from Mars than from Earth? For comparison, two images of our common star were taken at sunset, one from Earth and one from Mars. These images were scaled to have theβ¦iotman (59)inΒ scienceΒ β’Β 15 days agoπ SpacePicture of a Day: Meteors and Satellite Trails over the Limay River πͺWhat are all those streaks in the sky? A galaxy, many satellite trails, and a few meteors. First, far in the distance, the majestic band of our Milky Way Galaxy runs down the left. Mirroring it onβ¦iotman (59)inΒ scienceΒ β’Β 16 days agoπ SpacePicture of a Day: Rubin's Galaxy πͺIn this Hubble Space Telescope image the bright, spiky stars lie in the foreground toward the heroic northern constellation Perseus and well within our own Milky Way galaxy. In sharp focus beyond isβ¦iotman (59)inΒ scienceΒ β’Β 17 days agoπ SpacePicture of a Day: Solar Eclipse πͺOn April 20, 2023 the shadow of a New Moon raced across planet Earth's southern hemisphere. When viewed along a narrow path that mostly avoided landfall, the Moon in silhouette created a hybridβ¦iotman (59)inΒ scienceΒ β’Β 18 days agoπ SpacePicture of a Day: 25 Brightest Stars in the Night Sky πͺDo you know the names of some of the brightest stars? It's likely that you do, even though some bright stars have names so old they date back to near the beginning of written language. Many worldβ¦iotman (59)inΒ scienceΒ β’Β 19 days agoπ SpacePicture of a Day: Enceladus in True Color πͺDo oceans under the ice of Saturn's moon Enceladus contain life? A reason to think so involves long features -- some dubbed tiger stripes -- that are known to be spewing ice from the moon's icyβ¦iotman (59)inΒ scienceΒ β’Β 20 days agoπ SpacePicture of a Day: Between Scylla and Charybdis: A Double Cosmic Discovery πͺCan you identify this celestial object? Likely not β because this is a discovery image. Massive stars forge heavy elements in their cores and, after a few million years, end their lives inβ¦
