Nasa boss says he hopes astronauts may one day return his rover. The director of Nasa's Mars exploration programme says he hopes that one day the rover Curiosity might be brought back to Earth by astronauts. Doug McCuistion said it was his personal hope that humans would visit the Red Planet in the 2030s or 2040s. He said he could imagine astronauts walking up to Curiosity.
If you mean personal income taxes, you can file them any time after January 1, and they are due on or before April 15, unless you file for an extension. In USA, you may file personal income taxes beginning January 2 and the deadline is April 15 or the first business day thereafter.
As of publication, single taxpayers under age 65 are not required to file federal taxes if their gross income is less than $10,000. If someone else can claim you as a dependent on his income taxes, then you must file if your gross income is $6,100 or more.