Can a country actually claim the Moon or other celestial body as their territory? The Outer Space Treaty ”Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer Space, including the Moon and Other Celestial Bodies” The treaty is the foundation of international space law for signatory nations (108 in 2019). The treaty presents principles… Read more →
A white hole is a strange cosmic entity that glows brightly and emits stuff rather than disappearing. To put it another way, it’s the polar opposite of a black hole. Unlike black holes, however, there is no agreement on whether white holes exist or how they develop. Einstein’s theory of gravity predicts them, and they’re most commonly cited in the… Read more →
It depends on what you mean by “lightning”. Yes, because charge can flow across a vacuum, but No, because you won’t see anything. Lightning is a sudden electrostatic discharge between regions of differing electric potential. It has been observed on Venus, Jupiter and Saturn, as well as Earth. There is little material to act as a conductor of charge in… Read more →
1. How many planets do not have natural satellites? Two planets, Venus and Mercury, are the only planets in the solar system that do not have any natural satellites or moons. Mercury, Venus, Mars and Earth are inner planets. The outer planets are Jupiter, Uranus, Saturn and Neptune. Earth has one large natural satellite, known as the Moon; and Mars has two tiny natural satellites, Phobos and Deimos. 2. How many moons… Read more →
