Keep pulling the thread on Isaac Newton.
The total gravitational effect in the universe is approximately six times greater than what can be accounted for by its visible matter, an observation attributed to dark matter.
The next generation of telescopes should be capable of detecting non-electromagnetic signals like gravitational waves and neutrinos.
Zero-point energy is the lowest possible energy state in a quantum system, which is not truly zero due to quantum fluctuations.
It is not possible to extract energy from the zero-point energy state because there is no lower energy state for it to transition into.
Neil deGrasse Tyson believes it is unlikely that zero-point energy can be harnessed for applications like space travel, based on the current understanding of quantum physics.
The Cosmic Microwave Background is composed of microwave radiation emitted by the universe when it was at a temperature of approximately three degrees Kelvin.
The Sun's solar system takes approximately 200 million years to complete one orbit around the center of the Milky Way galaxy.
The graviton is a hypothetical particle proposed as the force carrier for gravity within the framework of quantum physics.
Spacecraft in a vacuum cannot use convection to cool down and must rely on radiators pointed away into deep space to dissipate heat.
It is impossible to reach absolute zero because quantum fluctuations prevent particles from ever completely stopping their motion.
Neil deGrasse Tyson speculates that gravity, as a curvature of spacetime, may not be a fundamental force with a carrier particle like the graviton and could exist outside of standard quantum paradigms.
Neil deGrasse Tyson proposes that the ideal location for a next-generation observatory would be an array of telescopes on the far side of the moon to avoid Earth's atmospheric and radio interference.