Current Discoveries in Astronomy - Coursework Example

The paper “Current Discoveries in Astronomy” is a useful example of finance & accounting coursework. As an astronaut having recently sent for an extended mission on the International Space Station had experienced weightlessness, Comparing my mass in the International Space Station to my mass on Earth, it has not changed. B. If the International Space Station is in an orbit that is approximately 350 kilometers above the Earth’s surface, the force of gravity that is felt from the Earth while in the International Space Station to the force of gravity that is felt from the Earth while standing on the Earth’s surface is smaller.

The magnitude of the change is large. This is because the full Earth gravity in the International Space Station is smaller as compared to the force of gravity that is felt from the Earth while standing on the Earth’s surface.C. Given the answers to the above questions about mass and the force of gravity felt in the International Space Station, “weightlessness” on the International Space Station is an illusion. The International Space Station is really free-falling toward the Earth constantly but because of its orbital speed, it misses the edge of the Earth.

Any free-falling objects appear to be weightless because both the object and the container are falling at the same rate. 2. The appearance of Mars in our sky changes as Mars and the earth both orbit the sun. When Mars is in the same location on the sky as the sun from the point of view of the earth, we call this conjunction, and we cannot see Mars during the night. When Mars is 180 degrees from the sun from our point of view on earth, we call this opposition, and Mars is visible around midnight.A. Mars is visible when it is near conjunction for either a short while before dawn or a short while before sunset.

To compare and contrast how Mars is expected to appear to observers on Earth during conjunction and opposition, the surface of Mars appears mainly reddish-orange when seen from earth against dark space. This is probably due to the presence of iron oxide (rust), with darker gray areas that appear blue-green for physiological reasons, as the human eye and brain misjudge the color contrast.