I just saw the moon

CrazyDiamond

HAL is a StarChild
What are these unusual interstellar structures? Bright-rimmed, flowing shapes gather near the center of this rich starfield toward the borders of the nautical southern constellations Pupis and Vela. Composed of interstellar gas and dust, the grouping of light-year sized cometary globules is about 1300 light-years distant. Energetic ultraviolet light from nearby hot stars has molded the globules and ionized their bright rims. The globules also stream away from the Vela supernova remnant which may have influenced their swept-back shapes. Within them, cores of cold gas and dust are likely collapsing to form low mass stars, whose formation will ultimately cause the globules to disperse. In fact, cometary globule CG 30 (on the upper left) sports a small reddish glow near its head, a telltale sign of energetic jets from a star in the early stages of formation.


Sometimes the dark dust of interstellar space has an angular elegance. Such is the case toward the far-south constellation of Chamaeleon. Normally too faint to see, dark dust is best known for blocking visible light from stars and galaxies behind it. In this 36.6-hour exposure, however, the dust is seen mostly in light of its own, with its strong red and near-infrared colors creating a brown hue. Contrastingly blue, the bright star Beta Chamaeleontis is visible on the upper right, with the dust that surrounds it preferentially reflecting blue light from its primarily blue-white color. All of the pictured stars and dust occur in our own Milky Way Galaxy with one notable exception: the white spot just below Beta Chamaeleontis is the galaxy IC 3104 which lies far in the distance. Interstellar dust is mostly created in the cool atmospheres of giant stars and dispersed into space by stellar light, stellar winds, and stellar explosions such as supernovas.


What powers the Crab Nebula? A city-sized magnetized neutron star spinning around 30 times a second. Known as the Crab Pulsar, it is the bright spot in the center of the gaseous swirl at the nebula's core. About 10 light-years across, the spectacular picture of the Crab Nebula (M1) frames a swirling central disk and complex filaments of surrounding and expanding glowing gas. The picture combines visible light from the Hubble Space Telescope in red and blue with X-ray light from the Chandra X-ray Observatory shown in white, and diffuse X-ray emission detected by Imaging X-ray Polarimetry Explorer (IXPE) in diffuse purple. The central pulsar powers the Crab Nebula's emission and expansion by slightly slowing its spin rate, which drives out a wind of energetic electrons. The featured image released today, the 25th Anniversary of the launch of NASA's flagship-class X-ray Observatory: Chandra.


These cosmic clouds have blossomed 1,300 light-years away in the fertile starfields of the constellation Cepheus. Called the Iris Nebula, NGC 7023 is not the only nebula to evoke the imagery of flowers. Still, this deep telescopic image shows off the Iris Nebula's range of colors and symmetries embedded in surrounding fields of interstellar dust. Within the Iris itself, dusty nebular material surrounds a hot, young star. The dominant color of the brighter reflection nebula is blue, characteristic of dust grains reflecting starlight. Central filaments of the reflection nebula glow with a faint reddish photoluminescence as some dust grains effectively convert the star's invisible ultraviolet radiation to visible red light. Infrared observations indicate that this nebula contains complex carbon molecules known as PAHs. The dusty blue petals of the Iris Nebula span about six light-years.
 

florduh

Well-Known Member

Mickey Mouse oceans:lmao:

Real Oceans👇


dscovrepicmoontransitfull.gif

This animation features actual satellite images of the far side of the moon, illuminated by the sun, as it crosses between the DSCOVR spacecraft’s Earth Polychromatic Imaging Camera (EPIC) and telescope, and the Earth – one million miles away.

Earth #1
Earth First🌏
Make Earth Great Again (MEGA)
Earth for Earthers
Mars is a Shithole Planet
Stop Martian Crime👽
 

Radwin Bodnic

Well-Known Member
It's one of the most terrifying photographs ever taken. Dude's just floating untethered in deadly nothingness.
I have to admit I still prefer the old school style, 1 G free solo where a wrong move would be much more spectacular than just a face turning blue in a fishbowl after it ran out of oxygen.
 

florduh

Well-Known Member
I have to admit I still prefer the old school style, 1G free solo where the wrong ending would be much more spectacular than just a face turning blue in a fishbowl after it ran out of oxygen.

Yeah. There was always a rumor that astronauts carry cyanide capsules. Some astronaut mentioned how silly that is. They always have the option of venting o2 until they gently fall asleep.
 

Shrike

Flower Potted, Maxed, & Rio'd.
Shrike,
  • Haha
Reactions: florduh

florduh

Well-Known Member
Maybe all the ghosts from those two Boeing 737 Max's floated up to the Starliner to voice their displeasure with dying unnecessarily? :(:rip:

Probably shouldn't have laughed as hard as I did at that, but what can you do.

If it's aliens, maybe we owe Boeing an apology. Their corner cutting for financial gain and general incompetence directly leads to us making contact with an extraterrestrial intelligence? An embarrassing, but very apt, way to introduce humanity to the galactic community.
 

CrazyDiamond

HAL is a StarChild
Do underground oceans vent through canyons on Saturn's moon Enceladus? Long features dubbed tiger stripes are known to be spewing ice from the moon's icy interior into space, creating a cloud of fine ice particles over the moon's South Pole and creating Saturn's mysterious E-ring. Evidence for this has come from the robot Cassini spacecraft that orbited Saturn from 2004 to 2017. Pictured here, a high resolution image of Enceladus is shown from a close flyby. The unusual surface features dubbed tiger stripes are visible in false-color blue. Why Enceladus is active remains a mystery, as the neighboring moon Mimas, approximately the same size, appears quite dead. An analysis of ejected ice grains has yielded evidence that complex organic molecules exist inside Enceladus. These large carbon-rich molecules bolster -- but do not prove -- that oceans under Enceladus' surface could contain life.


In silhouette against a crowded star field along the tail of the arachnological constellation Scorpius, this dusty cosmic cloud evokes for some the image of an ominous dark tower. In fact, monstrous clumps of dust and molecular gas collapsing to form stars may well lurk within the dark nebula, a structure that spans almost 40 light-years across this gorgeous telescopic portrait. A cometary globule, the swept-back cloud is shaped by intense ultraviolet radiation from the OB association of very hot stars in NGC 6231, off the upper right corner of the scene. That energetic ultraviolet light also powers the globule's bordering reddish glow of hydrogen gas. Hot stars embedded in the dust can be seen as bluish reflection nebulae. This dark tower and associated nebulae are about 5,000 light-years away.


The glowing red clouds seen in this image show dense gas regions where new stars are being born in the RCW 106 region. But only 1% of this gas will actually go on to create stars, and astronomers don’t know why this percentage is so low.
We do know that star formation takes place when regions of these huge clouds of cold gas are able to clump together and eventually collapse into newborn stars, which happens at a critical density. But once we go past that density, do even denser regions produce even more stars, and could this help to explain the 1% mystery?
New results from the Atacama Pathfinder Experiment (APEX), accepted for publication in Astronomy & Astrophysics, suggest this is not the case: denser regions are not more efficient at forming stars. This is perhaps explained by the way these denser clouds fragment into filamentary structures and cores out of which stars will form, but leaves many questions still to be answered. This Picture of the Week highlights these areas of interest. The image imposes a red map of dense gas, imaged with the ArTéMiS camera at APEX, over an optical image taken with the VLT Survey Telescope.


When can you see a black hole, a tulip, and a swan all at once? At night -- if the timing is right, and if your telescope is pointed in the right direction. The complex and beautiful Tulip Nebula blossoms about 8,000 light-years away toward the constellation of Cygnus the Swan. Ultraviolet radiation from young energetic stars at the edge of the Cygnus OB3 association, including O star HDE 227018, ionizes the atoms and powers the emission from the Tulip Nebula. Stewart Sharpless cataloged this nearly 70 light-years across reddish glowing cloud of interstellar gas and dust in 1959, as Sh2-101. Also in the featured field of view is the black hole Cygnus X-1, which is also a microquasar because it is one of strongest X-ray sources in planet Earth's sky. Blasted by powerful jets from a lurking black hole, its fainter bluish curved shock front is only faintly visible beyond the cosmic Tulip's petals, near the right side of the frame.


Can you see the bat? It haunts this cosmic close-up of the eastern Veil Nebula. The Veil Nebula itself is a large supernova remnant, the expanding debris cloud from the death explosion of a massive star. While the Veil is roughly circular in shape and covers nearly 3 degrees on the sky toward the constellation of the Swan (Cygnus), NGC 6995, known informally as the Bat Nebula, spans only 1/2 degree, about the apparent size of the Moon. That translates to 12 light-years at the Veil's estimated distance, a reassuring 1,400 light-years from planet Earth. In the composite of image data recorded through narrow band filters, emission from hydrogen atoms in the remnant is shown in red with strong emission from oxygen atoms shown in hues of blue. Of course, in the western part of the Veil lies another seasonal apparition: the Witch's Broom Nebula.
 

CrazyDiamond

HAL is a StarChild
ELT-coming along nicely, 4 more years until completion. Just to remind, 39 meter main mirror, 978 square meters of light collecting area, 798 main mirror segments. The alignment precision of the main mirror segments is tens of nanometers across the entire 39 meters (that's 10,000 times thinner than a human hair) with 4,608 edge sensors that measure the relative positions of the mirror segments. It can gather light 100,000,000 times more than the human eye.


 
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