Study Notes For Subjects
Space Science Notes study notes for college and university students: the study of stars, planets, and other objects in space. Astronomers want to understand the universe and our planet’s.
Even millions of light years away, stars shine in the night sky because they are incredibly hot. Planets, in turn, tend to be much colder than these other stellar objects. In between, there are brown dwarfs, which are often a major astronomical enigma. More massive than planets , but less than stars, these stars do not fit perfectly into … Read more
If the emergence of animal life is not a simple matter? What if the origin of multicellular organisms requires a highly improbable combination of geological and astronomical coincidences? These questions gave rise to the so-called rare earth hypothesis. Read extensively in the lines below. Are we alone in the universe or not? The Rare Earth hypothesis was proposed … Read more
The solar ecosphere is the space occupied by the solar system whose temperature is favorable for the development of carbon combinations and serves as the basis for life forms on the planets . The planets included within the ecosphere have temperatures no higher than 80 °C and no lower than –70 °C. Features The ecosphere ranges from a minimum distance of 90 million … Read more
Astrobiology. From the Greek: Astron (star), Bios (life) and Logos (word/science). The literal meaning of astrobiology is the science of life in the cosmos, the science of life outside, whether it be past, present, or future life. It is a branch of astronomy that investigates life in the Universe , in the broadest meaning of the term. Synonymous with astrobiology is “exobiology”, that is, the biology of outer space. … Read more
Astrochemistry is a relatively new area, which is halfway between astronomy, physics and chemistry, having as its main focus the study of the formation, destruction and abundance of molecules in various environments such as molecular clouds, regions of stellar birth. , planetary nebulae, protoplanetary disks, planetary atmospheres, comets, etc. One of the important topics addressed … Read more
Vega (Star) . ( Alpha Lyrae ). It is the fifth brightest star in the night sky and second in the northern hemisphere after Arthur . Vega is a white star , the brightest in the constellation Lyre. It is relatively close to the Solar System , about 25 light-years away . At first it was taken as a reference to the zero value of stellar magnitude , but subsequent measurements have deviated this value to +0.03. Vega has been … Read more