Far Out! by Lili Wilkinson.

But she has no idea of just HOW exciting and terrifying and important it will be. And what it will mean for the future of interstellar travel. Join the Kaufmanns as they go FAR OUT! in Lili Wilkinson’s heartstopping short story, a rollercoaster ride of rocket thrusters, astronauts, life and death decisions …and a groovy dancing robot frog.