10 words in this vocabulary list
noun a positively charged particle consisting of two protons and two neutrons, emitted in radioactive decay
noun a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction
noun a concept describing something that is limitless or endless in space, time, or quantity
noun the process of converting an atom or molecule into an ion by adding or removing charged particles
noun a celestial object, thought to be a rapidly rotating neutron star, that emits regular pulses of radio waves and other electromagnetic radiation
adjective pulsar (used to describe something related to or characteristic of pulsars)
noun a system or device used to propel a rocket or spacecraft through the atmosphere or outer space
noun the state, fact, quality, or condition of being singular; a unique or distinct feature or characteristic
noun a type of spectrometer used for spectroscopic analysis
noun the act or process of imploding
verb to collapse or burst inward violently
noun a significant release of plasma and magnetic field from the solar corona