Pluto, as you know, was “downgraded” from “a planet” to “a dwarf planet” by the International Astronomy Association (IAU) in 2006, after they redefined new criteria for the planet. But, since the controversial decision, many loyal supporters of Pluto did not agree.
If we compared the distance of Venus and Mercury to the sun, we can conclude that Venus has farther distance to the Sun. But why does Venus are hotter than Mercury? And even Venus is the hottest planet in the solar system?
Nowadays, many organizations and countries planning to send their astronauts to Mars, some even targeting the construction of human colonies there. Ranging from government agencies like NASA to private companies like SpaceX.
It may be rare to find a story that explains a flat-earther ‘repentance’ and turns away from the conspiracy theory. Although rare, but that does not mean the story does not exist at all.
There are so many exoplanet that have now been discovered. But how can we consider such planet is habitable for human being?
Earth-sized exoplanets is the most difficult type of planets to find. However, now the numbers are increasing, and even recently a group of astronomers from the Max Planck Institute, Georg Göttingen University, and Sonneberg Observatory have found 18 new exoplanets.
Mars has the nickname as a red planet. This nickname is given because the planet often appears in the sky as an a red “star”. Beyond that, after various spacecraft visiting Mars, we know the appearance of the color of this planet is really red.
The research team revealed that there are a number of exoplanets that have oceans with depths of up to thousands of miles. Exoplanets belong to the sub-Neptune category, or those that are 2-4 times larger than this blue-ish planet.