Are the planets getting closer to the sun?

Answer 1

the average distance between each planet and the Sun is decreasing very, very slowly. This is due to the loss of orbital energy to gravitational waves and the very slight resistance from passing through space that isn't a perfect vacuum. The planets will never get close enough to fall into the Sun due to this effect. However, the Sun will expand greatly when it becomes a red giant star....so the sun will get closer to the planets! (Mercury and possibly Venus will be engulfed)

Just to clarify some comments below, the sun is not massive enough to die in a supernova explosion. It will eventually explode, but the explosion is much smaller than a supernova....this type of explosion is called a planetary nebula. A white dwarf star, the dense core of the sun, will remain. This won't happen for a few billion years though.

If you're wondering "How do we know all of this stuff?" We know what will happen because there is a very large population of stars in the galaxy that we can study. They are in various phases of stellar evolution and we have created very good computational models that replicate what we observe in nature, by only using well-known laws of physics.

Answer 2

YES BECAUSE..(consider planets orbit)
First, let's think about a highly idealized situation: one planet circling a star. Basically the planet's orbit won't change at all (there will be an ever-so-slight loss of energy due to gravitational waves, but that is a very very small effect for an orbit like the earth's orbit.) A little more realistically, there is likely to be small amount of "friction" in such a system because the planet and the star are not perfect little 'point masses' but physical bodies that can flex and disipate energy internally. The first effect of this friction will be to make the planetary orbit become very close to a circle, since this minimizes the variation in tidal squashing of the planet and star across the period of the orbit. Secondly, if there is a suitable method for continued loss of energy (and angular momentum) the orbit may "decay", e.g. the average distance between the star and the planet will decrease.

However, we live in a much more complex solar system. In our solar system, virtually all the kinetic energy and momentum is in the giant planets, especially Jupiter. So it turns out that the interactions between our Earth and these giant planets will be the dominant factor in determining how our orbit will change in the future. These interactions can be VERY complex and are best handled by large computer simulations. Last I heard, we were in good shape for the next few hundred million years at the least. Also, the orbit of the earth has not changed very much over the last few billion years, which suggests it may not change much over the next few billion years either

Answer 3

the planets dont get closer to the sun but each year the sun is expanding by 1 cm each year and scientists predict that in millions of years the sun willl get to its biggest point being called the super red giant and because of its size it will suck in the plants and earth will end up were mercury is and then another million years from there the sun will start to shrinck till evntualy it becomes to be called a red dwarf no bigger then or moon but this process will be over around 100 million years.

Answer 4

The sun is getting bigger and bigger day by day.
We are moving closer and more closer each day.
Soon - say after one more billion years we will reach sun without the help of any rocket or space shuttle.

Answer 5

no one will ever understand how did our universe ensue, and no matter if or not they knew, it doesn't be a reality, it may purely be a chance because info leaves no room for possibilities; and with that being stated, each and everything round us (speaking about the point of existence, the existence of our universe and so on) is an idealistic chance conjunctured by technique of someone. Mankind should be so insignificant and negligible with comprehend to our entire universe with the intention to allow each and each and every one individuals to locate purpose in our existence and stay it to the fullest, minimalising any regrets shall we've even as our time is up. To have actual got here upon a purpose on your existence is particularly stunning because like what you stated, our universe is so huge with countless possibilities, and to be in a position to tutor our properly worth and locate the point of our existence as a tiny individual, is particularly magnificent. perchance for us to locate our purpose in existence, IS the point of our existence. All it truly is purely my opinion haha no longer implementing on absolutely everyone to position self belief in it, yet study it with an open suggestions.

Answer 6

All physical systems dissipate energy. The planets are part of a physical system, the Solar System. Due to gravity, tides, and friction they are losing energy, which will make them wind towards the sun.
See Law 2:
http://www.emc.maricopa.edu/faculty/farabee/biobk/BioBookEner1.html

Answer 7

No, the planets are going outward from sun.

Answer 8

no...the sun is expanding into a red sun that will ingulf the first three planets closest to the sun before it goes supernova and goes kluplunk

Answer 9

yes

Answer 10

no...... the sun is gettin bigger.....its turning into a red giant so its becomin bigger