Japan’s Hayabusa2 spacecraft has made an impressive journey, returning samples from the near-Earth asteroid Ryugu in 2018. Now, it’s on its way to a new target: the small, rapidly spinning asteroid known as 1998 KY26. It’s expected to arrive by July 2031, giving scientists plenty of time to ask questions about what it might find.
1998 KY26 is captivating because it could represent a new category of space objects. In 2017, the arrival of ‘Oumuamua—the first known interstellar visitor—changed how scientists view such objects. They started categorizing ‘Oumuamua as a “dark comet,” a type that behaves somewhat like a comet but is distinct from traditional asteroids and comets. Asteroids are rocky or icy objects orbiting the Sun, while comets release gas and dust to form a tail.
Experts speculate that 1998 KY26 might fit into this dark comet classification. But Harvard astronomer Avi Loeb presents a controversial idea. He proposes that 1998 KY26 could be a remnant of a failed Soviet mission to Mars called Phobos 1. This probe lost contact just two months after its launch in 1988 due to a simple yet critical command error—a missing hyphen.
Loeb’s team suggests that the orbited paths of Phobos 1 and 1998 KY26 align closely. They argue that their sizes and shapes also bear similarities. Though the idea is a long shot, Loeb believes we should consider all possibilities. He emphasizes the importance of including potentially human-made objects in our studies of space.
If 1998 KY26 turns out to be a technological artifact, it could lend credence to the theory that ‘Oumuamua was not just a natural object but possibly something crafted by an advanced civilization. This perspective is still viewed skeptically by many mainstream scientists, but the dialogue is vital.
As Hayabusa2 moves closer to its destination, the excitement grows. The spacecraft’s complex landing on such a fast-spinning asteroid presents significant challenges, but the findings could be groundbreaking. Loeb and his colleagues are advocating for ongoing research in anticipation of this milestone. They believe that understanding 1998 KY26 could reshape how we view our place in the universe.
For more information on Hayabusa2 and its mission, you can read reports from agencies like NASA and other credible sources here.
