Primordial black holes and rogue planets.
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The Busy Center of the Lagoon Nebula
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I love space phenomenon in the same way as some people like scary movies, games, and environments. I feel a strong sense of dread and fear at the thought of black holes, white dwarfs, and neutron stars. It's less about what you can see, and more about what you can't.
It's so bad that the most anxious and scared I've been in my life was on one of my first times using the FSD boost in the game Elite: Dangerous. In the game you can get boost to your ships travel by sucking up the streaming jets jutting out from white dwarfs and neutron stars. This boost can let you travel over 100ly, when average is 30ly or so. The process to do this, if done incorrectly however, can result in getting ripped out of cruising, stick, and unable to get away from these very disorienting beams before getting absolutely shredded. I have experienced nothing like it before or since.
To this day, neutron stars are both my favorite and most anxiety inducing universal phenomena! Slaughter House 5 is a really good book involving a neutron star, for those who haven't read it.
I've been pretty interested in Uranus for a while.
The thought of Quark Stars have fascinated me ever since I first read about them, about maybe fifteen years ago, a supernova remnant that is dense enough to overcome neutron degeneracy pressure, not dense enough to become a singularity.
The Cosmic Microwave Background was emitted when the Universe was around 370,000 years old, the oldest light in the Universe but the way space expands and accelerates, the distance at which the photons we detect now were emitted and when they reach us, is all distorted and crazily stretched. If you want to visualize how light moves as slow as a snail in the grand scheme of things, look no further.
Neutrinos, as far as we know the closest a particle with mass approaches zero, to the infinitesimal point that it's thought it doesn't derive its' mass from the Higgs Field. Then there's the as-yet elusive Cosmic Neutrino Background, emitted when the Universe was less than a second old.
Are we still doing βUranusβ?
It's been changed to "Urectum" because scientists got tired of the infantile jokes.