The Sun’s astrosphere is composed of several layers that include the heliosphere, heliosheath, heliopause and the termination shock. Heliosphere can be thought of as a bubble in space surrounding the sun. It shields and helps protect the earth from harmful intergalactic radiation. These radiations can destroy DNA and can make climate not suitable for existence. […]
Interstellar is attached to many other words, like the terms intergalactic and interplanetary. It literally means between or among stars, and is defined as an adjective in the English language. The term can also pertain to space clouds, matter in outer space or a specific study in astronomy. Interstellar cloud is a generic name for
Interferometry is a branch of radio astronomy. Under astronomy it is defined as the family or group of techniques to use superimposed or overlaid electromagnetic waves placed in a specific order to extract information regarding light, sound, or radio waves. This type of study is vital and essential in astronomy, since the way to study
It was the Astronomer Edwin Hubble that was able to describe in numerical terms at which the rate of the universe is expanding, this is known as the Hubble’s Law. In 1929, he was able to observe that almost all galaxies seemed to be moving away from the Earth. This is illustrated in mathematical terms
Photo by: S.fonsi Creative Commons Equinox literally means equal and this is the time of the year when the sun is over the equator which means that there is an equal length of time for night and day. This usually occurs twice a year, once in March and once in September. The equinox occurring in
Photo by: Pumbaa80 Creative Commons Do you know a lot about hydrogen? Did you know that it is the most abundant element? It makes up about 75% of the universe. Stars are formed from it! It is also considered to be the third most abundant element on Earth. It is present in water and all
What is hydrazine? What is it and why haven’t you heard of it? It is an organic chemical compound that is odorless and flammable. It is a liquid that smells like ammonia since it is derived from the same industrial chemical processes; though the physical properties of this chemical is closer to water.
Photo by: RJHall Creative Commons A star like the sun generates a huge quantity of energy because its core undergoes fusion, wherein hydrogen turns into helium. Over time though, the hydrogen at the core diminishes, thus preventing fusion. As the star begins to end, there will emerge a new source of hydrogen fuel which will
A Lenticular galaxy is basically a kind of galaxy which borders in between an elliptical and spiral galaxy when classified. They are shaped like a disk, and have almost no interstellar matter, and very little formation of stars. There are, however, remnants of small dust particles. A lot of aging stars are present in this
Two different numbers, namely the Latitude and the Longitude, usually characterize various locations on Earth. This helps people in determining specific locations on the map, and the respective distances between two points on the Earth.
