Group items tagged

After recently undertaking a journey to walk -- not fly -- across the United States in the "Grounded" storyline and reconnect with the country and everyday Americans, Superman appears to be taking another step that could have major implications for his national identity: in Action Comics #900... ...Superman announces that he is going to give up his U.S. citizenship. Despite very literally being an alien immigrant, Superman has long been seen as a patriotic symbol of "truth, justice, and the American way," from his embrace of traditional American ideals to the iconic red and blue of his costume. What it means to stand for the "American way" is an increasingly complicated thing, however, both in the real world and in superhero comics, whose storylines have increasingly seemed to mirror current events and deal with moral and political complexities rather than simple black and white morality.

Examples of the damages caused by these so-called "invasive species" are seemingly as endless as the amount of battles waged against them. But are all non-native species bad? Biologist Mark Davis says no. Davis, a professor from Macalester College in St. Paul, Minnesota, believes it's time to raise the white flag against non-native species. Most non-native species, he said, are harmless -- or even helpful. In a letter published in the journal Nature this past June, Davis and 18 other ecologists argued that these destructive invasive species -- or those non-native species that cause ecological or economic harm -- are only a tiny subset of non-native species, and that this tiny fraction has basically given all new arrivals a bad name.

In what is starting to become a familiar theme, researchers have speculated on what types of observational data from distant planetary systems might indicate the presence of an alien civilization, in this case asteroid mining - but end up concluding that most of the effects of such activity would be difficult to distinguish from natural phenomena.