ASTRO-MECHANICS

2022-02-09 09:39:00 Why aren't the planets falling on the Sun?

Most of us are aware that the Sun contains 99% of the total solar system mass and everything in it revolves around the Sun.

Based on the law of universal gravitation, all bodies are attracted to each other: such as the Sun and Earth, the gravitational force is about 3.35×10^22N. And at first glance, with such a huge force, the bodies would have to come closer to each other, or rather, our planet would have to fall on the Sun.

As well as planets do not fall into the sun because they are moving too fast in the tangential direction. As they fall toward the sun they travel tangentially just enough that they never get very close to the sun. They fall around it, in effect

#planetsinfo
@AstroMechanics Open / Comment

2022-02-09 09:39:00 When is Mars to become a habitable planet?

The problem is that Mars it cannot hold a dense atmosphere due to its low gravity.

As a consequence, any attempts to make Mars similar to Earth must involve either constant feeding of its atmosphere, or a substantial (several-fold) increase in its mass. Both options are far from being realized.

In general, this cannot happen in the next centuries

#Mars
@AstroMechanics Open / Comment

2022-02-09 09:39:00 #Astrowallpaper
@AstroMechanics Open / Comment

2022-02-09 09:39:00 Why has Mars lost its atmosphere?

Nowadays, Mars is a cold and barren desert. Perhaps it was the loss of the atmosphere that caused such a change.

Unlike Earth, Mars does not have a strong magnetic field protecting the red planet from the flow of solar charged particles.

The solar wind crashes unhindered into the upper atmosphere of Mars and pushes ions into space

#Mars
@AstroMechanics Open / Comment

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2022-01-29 15:22:49 Unique Channels On Telegram [LIST - 1]

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2022-01-29 09:25:23 The Universe has the same temperature everywhere (-454.756°F)

A snapshot of the Cosmic Microwave Background – heat left over from the Big Bang – when the Universe was just 380,000 years old, as seen by the Planck Telescope. It shows tiny temperature fluctuations that correspond to regions of different densities: the seeds that would grow into the stars and galaxies of today

#UniverseTemperature
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2022-01-29 09:25:13 The Solar System has its own tail

It looks most like the tail of a comet. We call it the heliotail. Nothing was known about it for the simple reason that the tail consists of particles invisible to traditional instruments.

The heliotel stretches 13 billion kilometers from the edge of the solar system Open / Comment