Mercury is the innermost and smallest planet as well as having the most eccentric orbit the eight planets in our Solar System. Mercury’s terrain is rocky and heavily cratered closely resembling Earth’s moon, having no atmospheric protection against meteoroids or debris colliding with the surface, causing huge dents. The outer crust of mercury is believed to be very thin, much thinner than earths, its shell only being 500 to 600 km thick. It has been found that Mercury is the second densest planet of our solar system, earth being the first. It has a metallic core which makes up 75% of the planets radius.
Speed relative to CMB rest frame is 552 km/s. The Milky Way is the second largest galaxy in the local group.Andromeda Galaxy is bigger than the Milky Way. Mass of the Andromeda Galaxy is 7×1011 solar masses (Mo). The Milky Way's steller disk approximately 100,000 light years in diameter and 1000 light years thick. Mass of the Milky Way is 5.8×1011 solar masses (Mo).
But with the earth being three times more massive than the moon, it is able to stay in place. Since the moon’s gravitational pull isn’t great enough to pull Earth closer, it grabs a hold to the ocean. This creates a tidal bulge in the direction of the moon and on the opposite side as well. This is where the high tides and low tides are distinguished. When the moon is aligned with the sun, spring tides are created making the high tides more dramatic.
Yes, the sun does spin, or rotate. Because it is a gas, it does not rotate like a solid. The sun actually spins faster at its equator than at its poles. There is no fixed rate of rotation of the Sun, on its own axis. At the equator, the Sun's rotation period is 25.05 days.
Dark Matter In 1933, astronomer Fritz Zwicky discovered evidence of dark matter when he identified that the actual mass of stars in the Coma cluster of galaxies was only one percent of that necessary to keep the galaxies within the cluster’s gravitational pull (Reis, “Dark Matter”). This indicated that there was more mass present than what was visible (Reiss, “Dark Matter”). Dark matter is identified by its effects on visible matter. According to the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX), “dark matter attracts … [it] releases no detectable energy, but … exerts a gravitational pull on all the visible matter in the universe” (Benningfield, “Dark Energy vs. Dark Matter”).
Open clusters are very different from globular clusters. Unlike the spherically distributed globulars, they are confined to the galactic plane, and are almost always found within spiral arms. They are generally young objects, up to a few tens of millions of years old, with a few rare exceptions as old as a few billion years, such as Messier 67 (the closest and most observed old open cluster) for example. Only a few star clusters can be seen by the naked eye and they are, Peiates, Hyades and the Beehive Cluster (Source 1). Praesepe or also known as the Beehive Cluster is an open cluster.
The Moon shows considerable evidence of past volcanic activity. Some other features seen on the Moon include lava tubes, lava channels, domes and basaltic plains. Some lava flows have been measured to be over 600 kilometer long. Though small, the Moon shows some evidence of tectonism occurring around 2.5 billion years ago. Very little alteration has occurred to the very youngest of craters.
The first difference I would like to explain is the size and the mass of the two. The Jovian planets are much larger than the Terrestrial planets. In terms of both mass and radius, the Jovian planets are the true giants of the solar system (INTERIORS). These planets actually vary in size; none of them are even remotely the same. The smallest Jovian
As such, it rejects not only drilling into rocks to date the age of the Earth, but also ice core dating, which hint that the Earth is far older then the timeline they go by. Instead, they interpret it as a result of a global flood. Flat Earth creationism is the belief that God created the world with a flat surface 6,000 years ago. All that modern science says about shape, size, and age of the Earth is wrong, and evolution did not and still does not occur. Very few people today maintain such a belief.
The earth’s atmosphere was limiting how far we could see into space, so astronomers decided to bypass the atmosphere. The idea of a space telescope has been around for many decades, but only recently became a reality. The first proposal of a space telescope can be traced back to nineteen twenty three. Hermann Oberth known as the inventor of modern rocketry technology proposed that a telescope could be sent into space using a rocket. In the nineteen seventies the vision for a space telescope would become a reality.