After Jose won the singing competition, his friend said "you're a star". What does "you're a star" mean?

After meeting Taylor Swift, Ren was said she was very "down to Earth" and was very kind. What does "down to Earth" mean?

Poppi said that she "has stars in her eyes", she has a big crush on Steve. What does "have stars in one's eyes" mean?

Howie told Jon that he went to Neptune over the weekend and saw Taylor Swift. Jon asked him, "Are you from Mars?" there's no way that happened. What does "Are you from Mars" mean?

When given a new phone, Bryan said this is "not rocket science", I can turn this on soon. What does "not rocket science" mean?

After getting hit in the head during football practice, Brandon said he was "seeing stars" and needed to sit down. What does "seeing stars" mean?

Twins, Jamie and Jonni liked very different things. You could say that they are "worlds apart". What does "worlds apart" mean?

After winning the bingo game, Charlie said that she should "thank one's lucky stars". What does "thank one's lucky stars" mean?

Peter was "over the moon" about going to Europe this summer. He couldn't stop talking about it. What does "over the moon" mean?

When deciding between being on the soccer or running team, Lisa's mom told her that she could have the "best of both worlds" and play both sports. What does the "best of both worlds" mean?

Carl asked his dad for an airplane for his birthday. His dad told him, "you ask for the moon". What does "ask for the moon" mean?

Kyle wanted to be an olympic swimmer. His coach told him to, "reach for the stars" and practice really hard. What does "reach for the stars mean"?