Answer:
Sunita Lyn Williams is an American astronaut and United States Navy officer who formerly held the records for most spacewalks by a woman and most spacewalk time for a woman. Williams was assigned to the International Space Station as a member of Expedition 14 and Expedition 15.
Albert Einstein's
Albert Einstein's theory of relativity is famous for predicting some really weird but true phenomena, like astronauts aging slower than people on Earth and solid objects changing their shapes at high speeds
What are the options? Grammar-wise, a colon is usually used to introduce a list in a sentence.
