The universe is full of dazzling sights, but thereโs an eerie side of space, too. Nestled between the stars, shadowy figures lurk unseen. The entire galaxy could even be considered a graveyard, full of long-dead stars. And itโs not just the Milky Way โย the whole universe is a bit like one giant haunted house! Our Nancy Grace Roman Space Telescope will illuminate all kinds of spine-chilling cosmic mysteries when it launches in 2027, but for now settle in for some true, scary space stories.
One of the first signs that things are about to get creepy in a scary movie is when the lights start to flicker. That happens all the time in space, too! But instead of being a sinister omen, it can help us find planets circling other stars.
Roman will stare toward the heart of our galaxy and watch to see when pairs of stars appear to align in the sky. When that happens, the nearer star โ and orbiting planets โ can lens light from the farther star, creating a brief brightening. Thatโs because every massive object warps the fabric of space-time, changing the path light takes when it passes close by. Roman could find around 1,000 planets using this technique, which is called microlensing.
The mission will also see little flickers when planets cross in front of their host star as they orbit and temporarily dim the light we receive from the star. Roman could find an additional 100,000 planets this way!
Roman is going to be one of the best ghost hunters in the galaxy! Since microlensing relies on an objectโs gravity, not its light, it can find all kinds of invisible specters drifting through the Milky Way. That includes rogue planets, which roam the galaxy alone instead of orbiting a starโฆ
โฆand solo stellar-mass black holes, which we can usually only find when they have a visible companion, like a star. Astronomers think there should be 100 million of these black holes in our galaxy.
Black holes arenโt the only dead stars hiding in the sky. When stars that arenโt quite massive enough to form black holes run out of fuel, they blast away their outer layers and become neutron stars. These stellar cores are the densest material we can directly observe. One sugar cube of neutron star material would weigh about 1 billion tons (or 1 trillion kilograms) on Earth! Roman will be able to detect when these extreme objects collide.
Smaller stars like our Sun have less dramatic fates. After they run out of fuel, they swell up and shrug off their outer layers until only a small, hot core called a white dwarf remains. Those outer layers may be recycled into later generations of stars and planets. Roman will explore regions where new stars are bursting to life, possibly containing the remnants of such dead stars.
If we zoom out far enough, the structure of space looks like a giant cobweb! The cosmic web is the large-scale backbone of the universe, made up mainly of a mysterious substance known as dark matter and laced with gas, upon which galaxies are built. Roman will find precise distances for more than 10 million galaxies to map the structure of the cosmos, helping astronomers figure out why the expansion of the universe is speeding up.
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haha that's a nice starry-eyed ambition you've got there buddy. sure hope the narrative doesn't warp it into something ruthless and all-consuming
Trying to experiment a little with this lineless style, I think I forgot how to draw in it since the last time I did.
A lost little king, seeking advice from all corners of Azeroth, finds himself searching for this 'Loa of Kings'. He is surprised when he finds it's someone he's met before...
could not possibly go to sleep without drawing oliver in the boris karloff baddie pose
danny or phantom. just a fictive who wanted his own space for reblogging neat stuff. icon art is by jackalspine.
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