The Deep Space Optical Communications (DSOC) test will be the first demonstration of laser, or optical, communication beyond the Moon and could help ease the way as astronauts return to the Moon and take the next giant leap - to Mars. It also represents a key step in opening a new era in space communications.
If so, getting a whiff of its unique mix of iron, nickel, and rock may be the closest we will ever come to investigating the metal core of Earth.
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