After looping through space for 53 years, a wayward Soviet spacecraft called Kosmos-482 returned to Earth, entering the dense layers of the planet’s atmosphere at 9:24 a.m. Moscow time on Saturday, according to Roscosmos, the Russian state corporation that runs the space program.

Designed to land on the surface of Venus, Kosmos-482 may have remained intact during its plunge. It splashed down in the Indian Ocean west of Jakarta, Indonesia, Roscosmos said.

Kosmos-482 was launched on March 31, 1972, but became stranded in Earth’s orbit after one of its rocket boosters shut down prematurely. The spacecraft’s return to Earth was a reminder of the Cold War competition that prompted science fiction-like visions of Earthbound powers projecting themselves out into the solar system.

“It recalls a time when the Soviet Union was adventurous in space — when we were all maybe more adventurous in space,” said Jonathan McDowell, an astrophysicist at the Harvard & Smithsonian Center for Astrophysics who tracks objects launched into orbit. “It’s a bit of a bittersweet moment in that sense.”

While America had won the race to the moon, the Soviet Union, through its Venera program, kept its sights on Venus, Earth’s twisted sister.