on April 22, 2022
Why are planets closer to the sun small and rocky?
Space and AstronomyThe Sun sent out energy and particles in a steady stream, called stellar winds. These winds proved so strong that they blew off mostthe gases of the four planets closest to the Sun, leaving them smaller, with only their rocks and metals intact. That’s why they are called rocky, or terrestrial, planets. Why rocky planets
on April 22, 2022
Do you double space after a semicolon?
Space and AstronomyThe question of when viability occurs has caused great controversy. 3. Place one space after a comma, a semicolon, and other forms of punctuation falling within a sentence. Should you put 2 spaces after a colon? Just as with the period, it used to be common to put two spaces after a colon, but now
on April 22, 2022
Can you travel to the edge of the universe?
Space and AstronomyAs far as we can tell, there is no edge to the universe. Space spreads out infinitely in all directions. Furthermore, galaxies fill all of the space through-out the entire infinite universe. Can you go past the edge of space? Thanks to dark energy and the accelerated expansion of the Universe, it’s physically impossible to
on April 22, 2022
What is the difference between a star’s apparent brightness and its absolute brightness?
Space and AstronomyAstronomers define star brightness in terms of apparent magnitude — how bright the star appears from Earth — and absolute magnitude — how bright the star appears at a standard distance of 32.6 light-years, or 10 parsecs. What is the difference between brightness and apparent brightness? Luminosity is the rate at which a star radiates
on April 22, 2022
What is P and Q in geometry?
Space and AstronomyIn conditional statements, “If p then q” is denoted symbolically by “p q”; p is called the hypothesis and q is called the conclusion. For instance, consider the two following statements: If Sally passes the exam, then she will get the job. What does P and q mean in mathematics? The statement p in an
on April 22, 2022
How often do partial lunar eclipses occur?
Space and Astronomyabout three times a yearabout three times a year. Lunar eclipses also can be seen by anyone, as long as it is dark out versus a solar eclipse which is very location dependent. How often do partial eclipses occur? about twice a year Partial eclipses occur about twice a year somewhere in the world. Sometimes
on April 22, 2022
What is Sexagesimal system in trigonometry?
Space and AstronomyIn the Sexagesimal system of measurement a right angle is divided into 90. equal parts called Degrees. Each degree is divided into 60 equal parts called Minutes, and each minute into 60 equal parts called Seconds. The symbols 1°, 1′, and 1″ are used to denote a Degree, a Minute, and a Second respectively. What
on April 22, 2022
Is the cork you used alive?
Space and Astronomycork cells are excellent for viewing the cell wall because it is easily visible. The cork is no longer living, the cell wall remains as the only evidence of once living material. Is a cork dead or alive? Cork cells are genetically programmed not to divide, but instead to remain as they are, and are
on April 22, 2022
Is the solar system inside a nebula?
Space and AstronomyThe Earth was formed from the nebula that produced the Solar System. It is almost universally accepted that the Sun, the planets and their satellites, the asteroids, and the comets of the Oort ‘cloud’ grew from a cloud of gas and dust that contracted under its own gravity. Is our solar system in a nebula?
on April 22, 2022
How many episodes of Cosmos A Spacetime Odyssey are there?
Space and AstronomyWill there be a season 2 of Cosmos: A Spacetime Odyssey? Cosmos is (finally) returning for a second season on FOX, and the documentary series now has a return date. Hosted by Neil deGrasse Tyson, Cosmos: Possible Worlds will come to the network on September 22nd but the 13 episodes already aired on National Geographic