MercuryBudha (Sanskrit: बुध) is the Sanskrit word for the planet Mercury. Budha is also a deity. He is also known as Soumya (Sanskrit: सौम्य, lit.https://en.wikipedia.org › wiki › Budha
Scientists speculate that the lack of magnetic shielding helped the solar wind blow away much of Mars's atmosphere over the course of several billion years. As a result, the planet has been vulnerable to radiation from space for about 4 billion years.
Scientists and enthusiasts alike have been fascinated by what becomes of entire solar systems after the central star (like our Sun) dies out. Turns out, when planets become lifeless bodies, they accrete into stars.
With extreme surface temperatures reaching nearly 735 K (462 °C; 863 °F) and an atmospheric pressure 92 times that of Earth, the conditions on Venus make water-based life as we know it unlikely on the surface of the planet.
Now, Venus is a mostly dead planet with a toxic atmosphere 90 times thicker than ours and surface temperatures that reach 864 degrees, hot enough to melt lead. It's often called Earth's twin because the planets are similar in size.
Until now, Mars has generally been considered a geologically dead planet. An international team of scientists now reports that seismic signals indicate vulcanism still plays an active role in shaping the Martian surface.
Mercury is a dead planet and the most heavily cratered object in the solar system. It is a world of black starry skies, gray craters, no moon and not enough gravity to hold an atmosphere.
There is one part of the world where nothing thrives, however: the Atacama Desert in Chile. The principal reason is the lack of water: some parts of the Atacama have not seen rain for decades. The acidic soil and high altitude – leading to relatively high levels of ultra-violet radiation – don't help either.
Potential for Life
The surface of Pluto is extremely cold, so it seems unlikely that life could exist there. At such cold temperatures, water, which is vital for life as we know it, is essentially rock-like. Pluto's interior is warmer, however, and some think there could even be an ocean deep inside.
Among the stunning variety of worlds in our solar system, only Earth is known to host life.
Putilin suggested that Phaeton was destroyed due to centrifugal forces, giving it a diameter of approximately 6,880 kilometers (slightly larger than Mars' diameter of 6,779 km) and a rotational speed of 2.6 hours. Eventually, the planet became so distorted that parts of it near its equator were spun off into space.
Many lines of evidence suggest more than one planetary explosion in the Solar System's history. The discovery of one, and probably two, new asteroid belts orbiting the Sun beyond Neptune is especially suggestive, given that the main asteroid belt is apparently of exploded planet origin.
It still has about 5,000,000,000—five billion—years to go. When those five billion years are up, the Sun will become a red giant.
Air on Mars
So, one of the biggest challenges of putting people on the planet is the shortage of oxygen. The air on mars is thinner than that on Earth. On Earth, 21 percent of the air is oxygen, which is what makes it the ideal place for human life. But on Mars, oxygen makes up 0.13 percent of the air.
Mars once ran red with rivers. The telltale tracks of past rivers, streams and lakes are visible today all over the planet. But about three billion years ago, they all dried up—and no one knows why.
According to their analysis, changing the amount of carbon dioxide in the atmosphere didn't alter Mars' fate, but losing non-CO2 greenhouse gases likely caused Mars to dry out.
Uranus' environment is not conducive to life as we know it. The temperatures, pressures, and materials that characterize this planet are most likely too extreme and volatile for organisms to adapt to.
Surface. As a gas giant, Jupiter doesn't have a true surface. The planet is mostly swirling gases and liquids. While a spacecraft would have nowhere to land on Jupiter, it wouldn't be able to fly through unscathed either.
Habitability. Robert Zubrin has pointed out that Titan possesses an abundance of all the elements necessary to support life, saying "In certain ways, Titan is the most hospitable extraterrestrial world within our solar system for human colonization." The atmosphere contains plentiful nitrogen and methane.
Normally, as time passes, our cells undergo changes: Our DNA mutates, cells stop dividing, and harmful junk—by-products of cellular activity—builds up. All these processes together cause us to age.
At the current rate of solar brightening—just over 1% every 100 million years—Earth would suffer this "runaway greenhouse" in 600 million to 700 million years. Earth will suffer some preliminary effects leading up to that, too.
While the population can expect to live longer lives on average, the human lifespan might have a cap. Scientists believe that the human lifespan could be anywhere from 120-150 years long, but not longer than that, due to accumulating hallmarks of aging and chronic disease.
Astronomers searching for our solar system's elusive Planet Nine — a theoretical world that may lurk deep in a cloud of icy rocks far beyond the orbit of Neptune — have come up short once again.
The current count orbiting our star: eight. The inner, rocky planets are Mercury, Venus, Earth, and Mars. NASA's newest rover — Perseverance — landed on Mars on Feb. 18, 2021. The outer planets are gas giants Jupiter and Saturn and ice giants Uranus and Neptune.
In a new study published in Nature, we show a glimpse of the possible future of our Solar System, when the Sun burns through all its hydrogen fuel and becomes a dead star called a white dwarf.