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Questions and Answers

How long do stars live?

Questions and Answers

Can you see some planets with the naked eye?

Questions and Answers

How come exactly the moon has shadows that look like continents even when it’s a full moon?

Questions and Answers

Does the expansion of the universe cause light to travel a greater distance?

Questions and Answers

What is the evidence for rapid inflation after the Big Bang?

Questions and Answers

Is Mars clearly visible on August 27, 2009?

Questions and Answers

What was the first rocket on Mars?

Questions and Answers

Can (and if so how) a planetary ring form around the earth?