phosphine

That first step has happened on Mars and on a few distant moons, and now, scientists suggest, on Venus. A team of astronomers announced today (Sept. 14) that it has spotted the chemical fingerprint of phosphine, which scientists have suggested may be tied to life, in the clouds of the second rock from the sun.

To date, no definitive proof has been found of past or present life on Venus. With extreme surface temperatures reaching nearly 735 K (462 °C; 863 °F) and an atmospheric pressure 90 times that of Earth, the conditions on Venus make water-based life as we know it unlikely on the surface of the planet.

In September, a team led by astronomers in the United Kingdom announced that they had detected the chemical phosphine in the thick clouds of Venus. “Sulfur dioxide is the third-most-common chemical compound in Venus’ atmosphere, and it is not considered a sign of life.”

While planet Jupiter is an unlikely place for living things to take hold, the same is not true of some of its many moons. Europa is one of the likeliest places to find life elsewhere in our solar system. There is evidence of a vast ocean just beneath its icy crust, where life could possibly be supported.

The most likely planets to sustain life include Mars, Europa, Enceladus and Titan.

The atmospheric pressure on Mars varies with elevation and seasons, but there is not enough pressure to sustain life without a pressure suit.

The atmosphere on Mars is mostly made of carbon dioxide. It is also 100 times thinner than Earth’s atmosphere, so even if it did have a similar composition to the air here, humans would be unable to breathe it to survive. If we ever send astronauts to explore Mars, they will have to bring their own oxygen with them.

Planet Earth remains the only planet where we know life exists. However, there are planets and moons within our solar system that scientists believe could hold life, such as Mars and Europa (one of Jupiter’s moons). One of the key signs of another planet holding life may be the amount of oxygen in the atmosphere.

SpaceX’s aspirational goal is to land their cargo starships on Mars by 2024 and the first 2 crewed starships by 2026.

End of the world or The End of the World may refer to: End of the world (civilization), various types of events that threaten to destroy or cripple human civilization. End of the world (religion), theology concerned with what is believed to be the ultimate destiny of humanity.

Four Corners, USA is the only place in the United States where four states meet: Arizona, New Mexico, Utah and Colorado. There’s a monument there. And from the National Geodetic Survey comes word that it’s not in the right place.

In Christianity and Judaism, the Old Testament (Book of Genesis, Genesis 2:8–14) identifies the Garden of Eden, and the four rivers as the Tigris, Euphrates, Pishon, and Gihon. The Tigris runs to Assyria, the Euphrates to Armenia, the Pishon to Havilah or Elam, and the Gihon to Ethiopia.

Five Corners is the only place in the US where five states meet. It does not exist anywhere in the United States of America. It is most likely based on the real USA attraction, the Four Corners, which contains Utah, Colorado, Arizona, and New Mexico.

Indeed, the monument marks the exact spot where the four states meet. The Four Corners monument has been included in modern high-accuracy Global Positioning System (GPS) geodetic surveys, producing three-dimensional coordinates accurate to an inch or better.