This image captures the Tarantula Nebula in all of its cosmic glory. Astronomers study nebulae like this one to learn about how elements form and disperse throughout the galaxy, seeding space with planetary building blocks.
Clouds of dust and gas called nebulae speckle our galaxy. Some are ferocious cosmic factories that churn out baby stars by the hundreds of thousands, while others are grave markers of stars long dead. Astronomers study them to learn about how stars and planets form, and how ingredients are recycled in space.
But all that dust is difficult to see through, and nebulae are often so large that today’s most powerful space telescopes can only realistically study tiny patches of them. That’s where our soon-to-launch Nancy Grace Roman Space Telescope comes in.
This video of the Eagle Nebula showcases Roman’s superb resolution and wide field of view. It begins with a Hubble image of the famous Pillars of Creation superimposed on a ground-based image. The view then zooms out to show the full field of view of Roman’s Wide Field Instrument. Roman’s images will have the resolution of Hubble while covering an area about 100 times larger in a single pointing.
Roman will pair a large view of space with infrared heat vision. That combination is a game-changer for studying nebulae.
Here’s how it usually works. Ground-based telescopes take large but somewhat blurry images of a nebula. Then space-based observatories like our Hubble and James Webb space telescopes zoom in on small patches to show us the details of particularly interesting regions. But with Roman, we’ll get the big picture and incredible detail all in one.
That saves astronomers a lot of time, which opens up new avenues of exploration. For example, instead of spending several months stitching together hundreds of individual images of the Orion nebula with Hubble or Webb, Roman could cover it in a matter of hours in just a few snapshots.
Roman’s vast surveys will give us a census of stellar nurseries, where fledgling stars are being born from parent clouds of gas and dust. Studying these nebular nesting grounds will reveal millions of stellar embryos, newborn stars still swaddled in shrouds of dust, toddler stars that throw tantrums and flare unpredictably, and young stars that may have planetary systems forming around them.
A single Roman survey of our Milky Way galaxy will capture thousands of nebulae, unveiling planet formation and the full lifecycle of stars like never before. That includes their spectacular final acts.
This Hubble image showcases the Hourglass nebula, a young planetary nebula located about 8,000 light-years away.
Garden-variety stars like the Sun live fairly placid lives, casually churning out heat and light for billions of years by fusing hydrogen into helium. That nuclear process creates a lot of energy and outward pressure. For a long time, it’s held in check by the inward pull of gravity. But when a star runs out of fuel to fuse, gravity takes over.
Their cores shrink so fast that their outer shells of gas are left behind, which puff out and transform into unique and often psychedelic works of art called planetary nebulae (so-called because they looked similar to planets in early telescopes). Heftier stars meet more dramatic fates, with a runaway reaction that leads to the star’s detonation: a supernova explosion! Both result in nebulae that look like kaleidoscopic dreamscapes.
This image of supernova remnant W49B combines X-rays from NASA’s Chandra X-ray Observatory in blue and green, radio data from the NSF’s Very Large Array in pink, and infrared data from Caltech’s Palomar Observatory in yellow.
Star deaths create conditions so extreme that it can form new elements. The iron, oxygen, magnesium, silicon, sulfur, and nickel that together account for around 96% of the Earth's bulk were flung into space by supernova explosions. And some of the elements that make up your DNA, like carbon and nitrogen, were forged by smaller dying stars. You are literally made of stardust!
Roman will help us learn more about how elements were created and distributed throughout the galaxy, all while exploring many other cosmic questions.
This artist’s concept visualizes visible light in blue, showing how its short wavelength means it will easily run into dust particles. Longer wavelength infrared light, visualized in orange, can more easily pass through dust.
Roman’s infrared vision is key, because it will allow astronomers to see through the dust that often blocks telescopes that view other types of light. It’s hard for visible light to penetrate this dusty haze because the particles are the same size or even larger than the light’s wavelength. Since infrared light travels in longer waves, it hardly notices the tiny particles and can pass more easily through dusty regions.
By seeing through dust, we'll get a far better view of stars and other objects that are in nebulae and the cosmic structures that lie behind them. Astronomers will soon be able to chart our galaxy like never before!
An artist’s concept based on the final design of NASA’s Nancy Grace Roman Space Telescope.
We’re only about a month out from launch, and so close to a completely new understanding of the universe and our place within it. Follow along with Roman’s road to launch at nasa.gov/roman, and virtually tour the Roman observatory here.
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(Yoinked this from LinkedIn, genuinely interested in seeing how responses align with demographics) (so far it’s those of us over 35 being indignant but I wanna see how those fully plays out) (it’s cultural and technological history/memory, bruh)
one of my friends in a discord server was talking about how they were nervous about their first scheduled acupuncture appointment. another friend offered to do a tarot reading for them. sent this picture.
i cant believe that there's still gamergate STANK on games that women enjoy. NASTY misogyny residue. stardew valley is in fact a video game. animal crossing is also a video game. so are otome games and dating sims and twee little cozy games. sometimes a bitch doesnt wanna play bloodborne that shit's hard
guys who mainly play 2k and fortnite will still be like oh youre not a real gamer for having 1000 hours in stardew. mother fucker you're larping as a basketball player
This month people have been tearing Flock cameras off their poles.
This month people have been tearing Flock cameras off their poles. Perched above public streets, they are birdlike things, weatherproof, and they photograph every passing car and file it in a searchable national database.
Somebody cut two of them in half at Washington Avenue and Westcott in Houston, spray-painted the wreckage, and left an American flag on one of them. Police were notified on the morning of the Fourth of July.
Somebody severed a camera in Rutherfordton, North Carolina. The police department posted the photograph itself and collected more than twenty thousand comments. “Not all heroes wear capes.” “Give them a medal.”
Here is what the cameras do when nobody cuts them down. Cops use them to hunt immigrants and to follow ICE targets across state lines and to find women who ended pregnancies in states where that is a crime and to watch exes and to watch women they want, without a warrant and without a judge. A cop types a reason in a box and the box does not check.
A man in Burleson, Texas, told deputies his girlfriend had taken abortion pills. He showed them the photographs, the FedEx envelope, the instructions. Deputies opened a death investigation into a non-viable fetus, and the district attorney told them the state could not charge her, and they searched anyway: 83,345 cameras across 6,809 networks, a month of everywhere she had been. The reason they typed was had an abortion, search for female. The search reached Illinois and Washington, where what she did was legal. They found her in Dallas.
She came into the sheriff’s office a week later, and they thought she had come to explain the fetus, and she had come to report that the man who called them had put a gun to her head.
A sheriff in Jerome County, Idaho ran his wife’s plate more than seven hundred times in three months. He typed the same reason every time. Test. The attorney general found nothing to charge him with. He retired in April.
The Institute for Justice counts at least twenty-two officers who used the system to track people they were romantically interested in, and calls that almost certainly an undercount.
And the cameras keep falling.
[video: gianni matragrano, cosplaying as columbo, walks up to a kitchen counter and says: “hi there. uh,” (loud fumbling for his wallet, opening it to show an id) “lieutenant columbo, LAPD, homicide department.”
he puts his wallet back. someone uses twitch points to overlay someone throwing a pipebomb onto the screen. gianni says, trying to contain a laugh, “pipebomb.” the pipebomb explodes. cheering erupts. end alt text.]
Yeah I saw the lovecraftian horrors and didn’t succumb to madness. What- no I’m not a cultist, James. For Christ’s sake. What you’re forgetting my friend is that HP Lovecraft wasn’t a flexible man. His brain simply wasn’t stretchy enough to take it all in. I however, have short term memory issues. Flexibility is the name of the game when you can’t remember if you ate lunch or not. What’s the size of the universe? Big. You knew that already, James. Come on now. You don’t need to witness the terrifying ocean at the base of the entirety of reality itself to know that. Pass the brandy.
During a Eldritch Horrors based tabletop RPG my character was a young dandy who wasn't particularly interested in all this monster mystery stuff but his father (my brother's character) was a researcher who WAS very into it, so Bertie went along to make sure the old man didn't get into too much trouble. It was your average Eldritch Horrors RPG in that you don't make your characters with the expectation that they will survive for very long, both the game itself and the genre are very intent on turning your characters inside out, driving them insane, and blowing them up in no particular order.
The thing was, everything in this nightmare hellscape just seemed to keep coming up Bertie because the man was too stupid to realize what genre he was in. Every time he had to roll for a sanity check whenever he saw something crazy, the dice treated him so well that he just... didn't get it. Gee that sure is a funny costume. There's something wrong with that dog. These mean guys in stupid hats are trying to hurt that young lady, we can't have that! I had not built him this way, his intelligence stats weren't even that bad, random chance just made it so that this man was living a scooby doo adventure while everyone else was being consumed by The Horrors.
The final straw was at the end of an adventure when Bertie escaped from the cultist headquarters by breaking out through the mansion's front window on a motorcycle with a hot rescued sacrificial maiden clinging to his back and leading the cultists on a merry chase through the hedge maze while the other adventurers escaped. His sanity score? HIGHER than when the adventure had begun. He had found the whole experience quite thrilling and felt very good about life in general!
Bertie retired from adventuring to marry the maiden he rescued and care for his aging father and delight and bemuse his friends at the gentleman's club with stories of his 'wacky' adventures. I didn't want to risk breaking his ridiculous lucky streak.
germansingergirl
titsay
stormborns
snowghoul
origamiaround
2087
romaincrisis
