Question

When the Philae probe landed on Comet 67P, it took approximately 28 minutes for a
radio signal to be received at the European Space Operations Centre. Determine the
distance (in metres) from the Philae probe to Earth.

Answer 1

distance=speedlight*timeinseconds

Answer 2

so remember that light from our Sun to get to Earth takes only 8 minutes frm Sun to Earth, so this distance must be about 3 1/2 times as far.

Answer 3

Thank you!