... a casualty of the building of these sites. Early on, rocket stages were simply abandoned where they fell. Russia’s Proton rocket, for example, used hydrazine fuels, not only dangerous to handle at launch, but poisonous to the downrange...
... star, is so-called because the star’s main constituent is neutrons, produced when the collapsing core essentially melts protons and electrons into each other to form neutrons. This particular pulsar has a mass of 1.5 times that of the...
... idea of supersymmetry and are classed as non-baryonic, meaning they are not made up of subatomic particles such as protons and neutrons like normal baryonic matter. It is thought that WIMPs were created in the very early Universe...
... in the Universe and it is the thermal radiation left over from the time of recombination i.e when electrons and protons first stuck together to form hydrogen atoms. The CMB is very nearly uniform in all directions, however it does...
...is in fact a boson, dubbed a "protophobic X boson,” that interacts only with electrons and neutrons, instead of electrons and protons like the normal electric force – and at an extremely limited range. "There's no other boson that we've observed that...
... the Big Bang. What is known is that after the Universe had cooled sufficiently to allow the first protons and electrons to coalesce into hydrogen atoms, these primordial atomic nuclei then formed larger structures and...