For almost a decade—ever since 2017, when our first known interstellar visitor, 1I/'Oumuamua, swooped through the inner solar system—astronomers have been grappling with a small but stubborn mystery.
The water that makes up the oceans acted as a key ingredient for the development of life on Earth. However, scientists still do not know where the water here on Earth came from in the first place. One ...
In 2017, NASA discovered and later confirmed the first interstellar object to enter our Solar System. It wasn’t aliens. But artist impressions of the object (called ‘Oumuamua, the Hawaiian word for ...
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