Oumuamua: The Interstellar Visitor's Puzzling Acceleration and the Search for Natural Explanations
To the point
'Oumuamua' is the first known interstellar object that sped up like a comet but showed no gas, prompting scientists like Matthew Knight to consider natural explanations rather than an alien spacecraft, and future surveys such as LSST are expected to reveal whether such objects are rare curiosities or common travelers.
