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IoTman
@iotman
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2018-01-20 04:44
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iotman
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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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🌌 SpacePicture of a Day: Uranus's Largest Moon: Titania 🪐
Titania's tortured terrain is a mix of canyons, cliffs, and craters. NASA's interplanetary robot spacecraft Voyager 2 passed the largest moon of Uranus in 1986 and took the feature picture. That the trenches
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🌌 SpacePicture of a Day: Peculiar Elliptical Galaxy Centaurus A 🪐
What's happened to the center of this galaxy? Dramatic dust lanes run across the center of unusual elliptical galaxy Centaurus A. These dust lanes are so thick they almost completely obscure the galaxy's
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🌌 SpacePicture of a Day: A Message from Earth 🪐
What are these Earthlings trying to tell us? The featured message was broadcast from Earth towards the globular star cluster M13 in 1974. During the dedication of an upgrade to the Arecibo Observatory
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🌌 SpacePicture of a Day: Robert Goddard and Nell 🪐
Robert H. Goddard, considered the father of modern rocketry, was born in Worcester Massachusetts in 1882. As a 16 year old, Goddard read H.G. Wells' science fiction classic "War Of The Worlds"
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🌌 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 galaxies
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🌌 SpacePicture of a Day: Black Holes and Neutron Stars: 218 Mergers and Counting 🪐
What is the sound of two black holes merging in deep space? Sound waves don't propagate in vacuum, but gravitational waves do. In 2015 we were able to "hear" them for the first time and confirm
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🌌 SpacePicture of a Day: The Guardians of Rapa Nui beneath the Milky Way 🪐
In the words of today's astrophotographer, Rositsa Dimitrova, "What have these silent sentinels watched pass across the sky?" The volcanic mo'ai (meaning statue) of Ahu Tongariki stand guard
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🌌 SpacePicture of a Day: Light Pillars and Orion over Mohe 🪐
What's happening at the end of that street? Pictured here are not auroras but light pillars, a phenomenon typically much closer. In most places on Earth, a lucky viewer can see a Sun pillar, a column of
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🌌 SpacePicture of a Day: Galaxies in the River: NGC 1300 and NGC 1297 🪐
Spiral NGC 1300 and elliptical NGC 1297 are galaxies that lie on the banks of the southern constellation Eridanus (The River). At 70 million light-years distant or more, both are members of the Eridanus
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🌌 SpacePicture of a Day: Spring Equinox at Teide Observatory 🪐
The defining astronomical moment of the equinox today is at 14:46 UTC (March 20). That's when the Sun crosses the celestial equator moving north in its yearly journey through planet Earth's sky, marking
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🌌 SpacePicture of a Day: Launch Plume: SpaceX Jellyfish 🪐
ven if you live with your head in the clouds, you won’t find a jellyfish like this one very often. The featured image shows a SpaceX Falcon 9 rocket launch from Cape Canaveral in Florida on March 4. The
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🌌 SpacePicture of a Day: Cygnus and the Solitary Tree 🪐
A lone tree stands in a quiet meadow in Guadalajara, Spain, silhouetted against the Cygnus region rising above like flames in the night sky. This deep night skyscape is a composite of exposures that reveals
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