Why is Mercury not the hottest planet despite being nearest to the sun?
Why is Mercury not the hottest planet despite being nearest to the sun?
Because it is so close to the sun, it can be very hot. On its sunny side, Mercury can reach a scorching 800 degrees Fahrenheit! (But Mercury is not the hottest planet in the solar system. On its dark side, Mercury gets very cold because it has almost no atmosphere to hold in heat and keep the surface warm.
Does Mercury a planet closer to the sun than Earth take more or less time to revolve around the sun?
Mercury spins slowly compared to Earth, so one day lasts a long time. Mercury takes 59 Earth days to make one full rotation. But a year on Mercury goes fast. Because it’s the closest planet to the sun, it goes around the Sun in just 88 Earth days.
Why is Mercury the closest planet to Earth?
By using a more accurate method for estimating the average distance between two orbiting bodies, we find that this distance is proportional to the relative radius of the inner orbit. In other words, Mercury is closer to Earth, on average, than Venus is because it orbits the Sun more closely.
Which is closer to the Sun Mercury or the Earth?
At an average distance of only 57.9 million km, Mercury orbits closer to the Sun than any other planet. And Earth orbits the Sun at an average distance of 149.6 million km. So you can see that Mercury is much closer, taking only 88 days to complete an orbit around the Sun. So, Mercury is the closest planet to the Sun.
What is the Farest planet from Earth?
Saturn
Is there a planet 9?
Planet Nine is a hypothetical planet in the outer region of the Solar System. Based on earlier considerations, this hypothetical super-Earth-sized planet would have had a predicted mass of five to ten times that of the Earth, and an elongated orbit 400 to 800 times as far from the Sun as the Earth.
Can Planet 9 be a black hole?
Some plausible replacements for planet nine include a small ball of ultra-concentrated dark matter, or a primordial black hole. As black holes are among the most dense objects in the Universe, Unwin explains that it’s entirely possible the latter could be warping the orbits of distant objects in the outer solar system.
How does a planet die?
In about one billion years, the solar luminosity will be 10% higher than at present. The most probable fate of the planet is absorption by the Sun in about 7.5 billion years, after the star has entered the red giant phase and expanded beyond the planet’s current orbit.
What can destroy a planet?
How and Why Do Planets Die? Most planets can exist for a long, long time, but they can’t last forever. Hungry stars and violent planetary neighbors can completely destroy a world, while impacts and excessive volcanism can render a habitable world sterile by stripping the planet of its water.
Which planet has been destroyed?
In 1953, Soviet Russian astronomer I. I. Putilin suggested that Phaeton was destroyed due to centrifugal forces, giving it a diameter of approximately 6,880 kilometers 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.
Will the universe last forever?
Theories about the end of the universe. The fate of the universe is determined by its density. The preponderance of evidence to date, based on measurements of the rate of expansion and the mass density, favors a universe that will continue to expand indefinitely, resulting in the “Big Freeze” scenario below.
Does space have a bottom?
there is really no up or down in space. When asked which direction is up or down in this picture… You would probably say that up is on the top side of the picture and down at the bottom on the image.
Will the universe end?
If the Universe holds enough matter, including dark matter, the combined gravitational attraction of everything will gradually halt this expansion and precipitate the ultimate collapse. Over time, galaxies, then individual stars, will smash into each other more frequently, killing off any life on nearby planets.
What happens after the big rip?
If the Big Rip is real, then not only is the Universe expanding (which happens irrespective of dark energy), and not only will distant objects appear to accelerate away from us at increasingly faster and faster rates as time goes on (which happens because of dark energy), but objects which are bound together through …