Category: Solar system
Solar system
What is the age of comet Hartley-2?
Let’s look at Comet Hartley-2. How old is it? According to modern cosmogony, all comets formed 4.5 billion years ago from the primary matter of a nebula. None of the […]
A small asteroid put scientists at a dead end
Let’s look again at the photos of the asteroid Itokawa and comet Hartley-2, made on the same scale:
Comets and asteroids
According to the conventional view of the origin of the solar system, there is a strong difference between comets and asteroids.
The shape of small asteroids
Here are a few small asteroids, the shape of which is known.
How does the asteroid Ida spin?
So, one of the five asteroids we considered (Matilda) has a spherical shape, the second (Ida) is an ellipsoid, the three remaining (Gaspra, Eros, Itokawa) are dumbbell. They are two […]
Rotation of asteroids
If you throw a dumbbell, a pear or a skittle, be sure to give it a spin. The axis of rotation will have some direction.
The shape of asteroids
Let’s see, what shape small asteroids have. What do they look like? They liik like splinters from a collision or figures of rotation?
Figures of Rotation
In traditional cosmogony, asteroids are fragments of larger asteroids that were formed as a result of collisions. From this point of view, the shape of such fragments can be very […]
Origin of Asteroids
A huge number of small bodies of the Solar system are between the orbits of Mars and Jupiter – this is the so-called Main Belt of asteroids. How did it […]
Future of the Moon
Now the Moon is moving away from the Earth. However, when the day and month are equal, it will begin to approach. Will the Moon fall to Earth or not?