A: It tells readers there is something important happening on that asteroid.
The two needing to get back to the asteroid in two weeks' time shows that something is happening on that asteroid. We don't have any evidence to say that Kenniston has not been trying hard enough. Also, there is nothing to suggest that they have to get back because they are not where they should be. Lastly, there is nothing in this detail that suggests Holk Or is going to take over the planet.
Well, he was born in Ulm Germany on March 14, 1879, his research became famous in 1905 because of his laws of Physics, he died April 18, 1955, at the age of 76. He left Germany when Hitler became Dictator 1933. HE is the reason for the Manhatten project, he wanted to use nuclear fission as a weapon which highlighted the danger of nuclear weapons he became and American citizen in 1940. He had written more than 300 research papers along with 150 non-scientific works.
B) mainly
The word "mainly" shows that the story of Huck Finn is more fiction than fact. He repeats this word many times when he is talking about the story being one of truth. This intensifier introduces the idea of the story being a bit exaggerated and fictional. The other words add to the characterization of Huck. He uses ain't simply to mean isn't. When he says "that ain't no matter" he means that it is no big deal. Without is used to mean exactly that and is not meant as an opposite.
