Venus rotates in the retrograde rotation, contrary to that of the other planets. Venus is the second brightest object in the sky, only being outshined by the moon. Venus has an atmospheric pressure that is 92 times that of Earth. Asteroids therefore cannot enter
Neptune is the third largest planet in the Solar System, much smaller than the real giants, Jupiter and Saturn, and only a little bigger than Uranus. Among the gas giants Neptune is the densest. Neptune is usually much warmer than Uranus. The Great Dark Spot on Neptune is a dark blue anticyclone storm; it
Others recognized patterns in the ways the objects moved. Thus, astronomy was born. Around 600 B.C. it was accepted that the Earth was not a flat object through the insight of Greek philosophers from looking at the round shadow that the Earth cast on the Moon during lunar eclipses and how the stars seemed to move as one approaches the North Pole. (Larsen, 37).
Mars surface temperature may be Earth like. A Martian day is only 40 minutes longer than an Earth day. Differences: Due to its core, Earth has extreme magnetic field. Mars field is not too magnetic. Mars’s atmosphere has less density, similar to 1% of Earths atmosphere.
Astronomers have identified and cataloged numerous asteroids in close proximity to the earth’s orbit that have the potential of causing a catastrophe to our planet. William Burrows an American scientist, author, and journalist certifies that “ Since they [astronomers] do not doubt that several [asteroids] are headed in our direction, advanced knowledge could make it possible to destroy or deflect an approaching asteroid or comet.” (Burrows, 2003). With an objective of avoiding an impending doom, the NEO (Near Earth Objects) program coordinates NASA-sponsored efforts with the astronomical community in their goal of detecting and tracking these asteroids, in which some have been identified as PHA’s (Potentially hazardous Asteroids). Let us not forget that in 1908, an asteroid was reported to have
This article I found made several good points about what the other planets and moons in our solar system are like on the surface. The article talked about these things in weird and wonderful ways through the pretence of a winter wonderworld. In conducting more research on the topic of ice on other planets and moons I found an interesting website that discusses the idea of ice volcanoes. The web page “Ice volcanoes in outer space?” discusses the eruption of liquid water mixed with ammonia on Pluto’s neighbouring object, Charon. It discusses that on Charon the eruption quickly formed into an ice crystal structure.
186,282 miles per second. That’s how fast light travels in the universe. Our Sun is 93 million miles away from the Earth, and it’s light reaches us in around 8 minutes. That may seem like a huge distance, but that is absolutely nothing compared to other objects in space. Neptune, known for its glorious blue color, is 2.7 billion miles away.
John Herschel discovered Uranus in 1781 while searching for double stars. There had been recent developments in Newton’s mathematics that would allow astronomers to calculate the orbits of celestial bodies and he wanted to learn more about the physical nature of stars. When he first saw Uranus through his seven-foot reflecting telescope, he thought it was a comet. Very few astronomers believed there was a possibility of more planets, other than the five they knew of, the moon, and the sun. It wasn’t until a Russian astronomer calculated the orbit of the “comet”, following a slow moving path, that it was determined that it was a planet.
Gravity holds galaxies together. The motion of all the material in the Universe is affected by gravity. Gravity helps the galaxies rotate and the planets in the solar systems orbit. 4. How do galaxies vary?
This is evident even today when his laws determine the outcome of a space station being launched into planetary orbit. Though Einstein’s theory of relativity has been responsible for serious scientific and technological advancement, Einstein initially proposed his theories from his own thought experiments, considering previous theories and reaching contradictions or abnormalities. An example of this is, “what would happen here on Earth, if the sun suddenly disappeared?”. If Earth broke out of it’s gravitational orbit, and took a different trajectory, before the sun’s rays could reach the observers on Earth (8 minutes), then essentially gravity travels faster than the speed of light. A contradiction.