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Bennu Facts
Introduction
Bennu is a carbon-rich asteroid that is about one-third of a mile (half a kilometer) wide at its equator.
An ancient relic of our solar system’s early days, asteroid Bennu has seen more than 4.5 billion years of history.
Scientists think that within 10 million years of our solar system’s formation, Bennu’s present-day composition was already established.
Namesake
Bennu’s original designation was 1999 RQ36. The name “Bennu,” referencing an ancient Egyptian deity, was picked in 2013 by nine-year-old Michael Puzio, from North Carolina, who won a naming competition.
Potential for Life
Bennu does not appear to have the conditions necessary for life as we know it.
Temperatures range from a toasty 240 degrees Fahrenheit (116 Celsius) to a frigid -100 degrees. Because there is no atmospheric pressure, liquid water cannot exist on or under its surface.
Size and Distance
At about one-third of a mile (half a kilometer) wide at its equator, Bennu is minuscule compared to the planets – in fact, it is only slightly wider than the height of the Empire State Buil
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