A neutron star is the remaining core of giant stellar explosion, called a supernova. As a result of its formation, all the electrons and protons in a neutron star have been combined into neutrons. A neutron star is, effectively, a gigantic atomic nucleus consisting only of neutrons. Consider a neutron star with a mass that is 2.65 times the mass of the Sun (mSun = 1.99 ✕ 1030 kg). What is its radius (in km)? (Assume we can model it as a nucleus with a radiusr = r0A1/3.)km

you cant move and you feel like someones pushing you down onto your bed it can feel like you want to get up but you just can't it can be extremely scary

the rearrangement of particles in a physical change. hope this

bacteria that live on the ocean floor are sustained by phytoplankton. phytoplankton, microscopic marine photosynthetic organisms, have a vastly significant role to play not only in the marine food web of which they’re part of, but also on a more global scale. despite their infinitely small size in comparison to other marine organisms, these tiny creatures occupy an immensely important ecological niche: they are the foundation of the marine food web, and as primary producers, play key roles in supporting all other organisms in the marine environment, as well as in the regulation of the earth’s climate through the sequestration of carbon, oxygen production, and other related processes. phytoplankton account for roughly half of all global primary productivity; therefore, their significance extends far beyond the marine environment alone. there is an intriguing sense of irony in the realization that these tiny living beings that often live out their existence unnoticed and undetected by the rest of the world, have such a far-reaching impact on the lives of virtually all other living organisms on the planet, particularly on those in the marine environment. the world that we have become accustomed to has been and is continuously shaped by the workings of these miniscule yet vital “plants of the sea”.

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