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IoTman
@iotman
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ART, IOT and DIY
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2018-01-20 04:44
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iotman
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🌌 SpacePicture of a Day: Comet R3 PanSTARRS Before Rigel 🪐
Which way is Comet R3 PanSTARRS going? Not towards the star at the top of the image, because that is Rigel, which, being far in the background, is unrelated to the comet. Not through the nebula in the
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🌌 SpacePicture of a Day: The Retrograde Dance of Saturn and Neptune 🪐
What does it mean for Saturn and Neptune to be in retrograde? Featured is a composite of images taken over 34 nights from May 2025 to February 2026 tracing Saturn (brighter, foreground) and Neptune (dimmer,
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🌌 SpacePicture of a Day: Trifid Pillars and Jets 🪐
Dust pillars are like interstellar mountains. They survive because they are more dense than their surroundings, but they are slowly being eroded away by a hostile environment. Visible in the featured picture
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🌌 SpacePicture of a Day: Seeing Titan 🪐
Shrouded in a thick atmosphere, the surface of Saturn's largest moon, Titan, is really hard to see. Small particles suspended in Titan's upper atmosphere cause an almost impenetrable haze, strongly scattering
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🌌 SpacePicture of a Day: Markarian's Chain 🪐
Near the heart of the Virgo Galaxy Cluster, a string of galaxies known as Markarian's Chain stretches across this telescopic field of view. Anchored in the frame at bottom right by prominent lenticular
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🌌 SpacePicture of a Day: CG 30: Cometary Globules 🪐
They're like mountain peaks, but they are forming stars. Bright-rimmed, flowing shapes gather near the center of this rich starfield toward the borders of the nautical southern constellations Puppis and
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🌌 SpacePicture of a Day: Comet R3 PanSTARRS Behind Satellite Trails 🪐
Can you find the comet? Somewhere through this web of satellite trails is Comet C/2025 R3 (PanSTARRS), a bright visitor passing through the inner Solar System. Now, the orbiting satellites themselves only
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🌌 SpacePicture of a Day: Mystic Mountain Monster being Destroyed 🪐
Inside the head of this interstellar monster is a star that is slowly destroying it. The huge monster, actually an inanimate series of pillars of gas and dust, measures light years in length. The in-head
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🌌 SpacePicture of a Day: The Persistence of Sunlight 🪐
This seaside sunset offered a surreal experience, captured in a sea and skyscape from the west coast of Sardinia, Italy, planet Earth. The Daliesque scene is a composition of sequential exposures made
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🌌 SpacePicture of a Day: Young Moon and Sister Stars 🪐
Sunlit arms of a crescent moon seem to embrace the faint lunar night side in this dramatic celestial view from planet Earth. The single telephoto exposure tracking the sky was captured on the night of
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🌌 SpacePicture of a Day: Three Sky Arches over Snowy Alps 🪐
Why are there three arches across the sky instead of two? Last month, after being dropped off by a helicopter at a high mountain peak in the Alps near the Swiss Italian border, an adventurous astrophotographer
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🌌 SpacePicture of a Day: South Celestial Tree 🪐
If you live in the northern hemisphere, you may have learned how to locate the North Star, Polaris, in the night sky. It can be used to find north, and it approximately marks the northern celestial pole.
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🌌 SpacePicture of a Day: The ISS Transits the Moon 🪐
Nope, that is not an alien spaceship landing on the Moon! This is an image of the International Space Station (ISS) as it begins to transit in front of the Moon. The ISS is in low-Earth orbit (LEO) where
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🌌 SpacePicture of a Day: The Long Wispy Tail of Comet R3 (PanSTARRS) 🪐
Why does Comet R3 (PanSTARRS) have a wispy tail? The newest bright member of the inner Solar System, Comet C/2025 R3 (PanSTARRS) is already extending an impressive stream of glowing gas. This tail starts
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🌌 SpacePicture of a Day: Comet R3 (PanSTARRS) Brightens 🪐
Comet R3 is brightening rapidly -- will it survive? C/2025 R3 (PanSTARRS) has been slowly brightening and extending an ion tail since its discovery last year. This shedding mountain of dirty ice puts on
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🌌 SpacePicture of a Day: IC 4592: The Blue Horsehead Reflection Nebula 🪐
Do you see the horse's head? What you are seeing is not the famous Horsehead nebula toward Orion, but rather a fainter nebula that only takes on a familiar form with deeper imaging. The main part of the
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🌌 SpacePicture of a Day: NGC 3310: A Starburst Spiral Galaxy 🪐
The party is still going on in spiral galaxy NGC 3310. Roughly 100 million years ago, NGC 3310 likely collided with a smaller galaxy causing the large spiral galaxy to light up with a tremendous burst
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🌌 SpacePicture of a Day: Hello World 🪐
From pole to pole our fair planet is captured in this snapshot from space, an evocative image from a window of the Orion spacecraft Integrity. From the spacecraft's perspective the Sun is moving behind
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🌌 SpacePicture of a Day: Caught in the Web: Visualization of a Black Hole Merger in the Tarantula Nebula 🪐
How can we see what is invisible? Black holes are not easy to see in the dark cosmic night, but astronomers can find them by analyzing their gravitational effects on matter, light and spacetime. The featured
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🌌 SpacePicture of a Day: Liftoff! Returning to the Moon 🪐
We are one small step closer to returning to the Moon. A new chapter in human exploration began yesterday when NASA's Artemis II launched aboard the Space Launch System (SLS) from Kennedy Space Center.
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