Tag: Cosmos

milky way galaxy during nighttime

Constellation

What is a Constellation? A constellation is a group of stars making an imaginary night sky shape. They are usually named after mythological characters, people, animals and objects. In different parts of the world, people have made up different shapes out of the same groups of bright stars. It is like a game of connecting the dots. In the past… Read more →

Purple and brown colored planet

Dark Energy & Dark Matter

More than is known is unknown. It’s because we know how much dark energy it affects the expansion of the Universe. It’s a complete mystery, besides that. It is a major mystery, however. It turns out to be about 68% dark energy in the universe. One reason for dark energy is that it is a space property. Albert Einstein realized… Read more →

White Hole

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 →

Lightning during nighttime

Can Lightening occur in Space?

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 →

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Cosmos Fun Facts

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 →

Sky earth space working

Micro-gravity?

Micro-gravity behaves as weightless for people or objects. When astronauts and objects float in space, the effects of Microgravity can be seen. In other ways, micro-gravity can also be experienced. Micro-gravity refers to the situation where gravity appears very small. “Micro-gravity” means “very small.” Astronauts will float in a micro-gravity on a spacewalk or outside. Easily shifting large objects. For… Read more →