World (Earth) Facts About WorldInfo About Earth is the third planet from the Sun Alternative names Gaia, Terra, Tellus, the world, the globe Age of Earth 4.6 Billion Years Water Area 139,434,000 sq mi Total Countries 193 UN members + 2 UN observers + Taiwan + Kosovo Continents 7 Contin...
World Maps Earth is the fifth largest planet of the solar system. Total surface is over 500 million square kilometers with two thirds being covered by water (hence its nickname Blue Planet). The total population of the world is 7.6 billion (as of 2017). ...
The ridge networks were most often identified in extremely old terrain that was up to 4 billion years old, which is around the time that Mars is thought to have had liquid water flowing on its surface. Similar ridges have been found to have clays in previous research, which is important as...
It’s the result of a study by researchers from the Center for Astrophysics and the Space Telescope Science Institute, one that reveals all of the stars and star-forming regions within 500 light years of Earth reside on the bubble’s surface. Catherine Zucker, an astronomer and the author’s...
This theory suggests that Mars was struck by a Pluto-sized body about four billion years ago. The event, thought to be the cause of the Martian hemispheric dichotomy, created the smooth Borealis basin that covers 40% of the planet. Some geological activity is still taking place on Mars. ...
The chances of finding microbes living on Mars today is very slim given the cold, dry and irradiated conditions on the red planet, but the prevailing hypothesis is that Mars was warm and wet and potentially had conditions for life over 3.5 billion years ago. We see evidence for this in the...
that showed South America in its proper longitudinal position in relation to Africa. The map shows the earth as seen from space, the sub-glacial topography of Greenland and Antarctica, and is aligned with the earth’s energy grid – enoughhard-to-believe informationto fascinate today’s world...
After the top private companies, governments also own a significant portion of satellites orbiting the Earth. The U.S. remains the leader in total satellites, when adding those owned by both companies and government agencies together. American expenditures on space programs reached$62 billionin 2022...
“Known species are the ‘working units’ in many conservation approaches, thus unknown species are usually left out of conservation planning, management, and decision-making,” Moura said. “Finding the missing pieces of the Earth’s biodiversity puzzle is therefore crucial to improve biodiversity ...
All projections distort shapes, sizes or distances, so choosing one is a matter of trade-offs: Some maps need to preserve relative sizes, so that nothing looks bigger than it actually is (e.g. using the Albers projection for country maps or Equal Earth for world maps), but achieving this...