What is the earliest time from which we observe light in the universe?

Need in all of themmm only answer if you know pls

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c. the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors

Why do astronauts in the space shuttle weigh less?