The saga of a Venus-bound lander probe that launched from Soviet-run Kazakhstan in 1972 and made an uncontrolled reentry into Earth’s atmosphere on Saturday had triggered wide international interest, partly because there was so much uncertainty about its return. Would the spacecraft make it through the atmosphere intact? Where exactly would it end up?

One thing is for sure: the Cosmos 482 spacecraft is down (and no one has to worry anymore about the very remote possibility of an encounter with flying spacecraft debris). But the answers to some of the mysteries about the lander still appear to elude scientists, or at least are the subject of continuing debate.

Russian space agency Roscosmos said on Telegram on Saturday that the lander “entered the dense layers of the atmosphere at 9:24 Moscow time, 560 km west of Middle Andaman Island, and fell in the Indian Ocean west of Jakarta.”

The Russian statement was extensively reported by media organizations around the world. However, Dr. Marco Langbroek, a scientist based in the Netherlands, said on X that “it is not at all clear how accurate that position is and what it is based on, and whether it better represents the other estimates.”

Some other space agencies and institutions had predicted other reentry points, including in the Pacific Ocean.

“There is a planet-size discrepancy in some predictions about the Soviet Venus probe’s impact point this morning, but everybody seems to agree it is down and it is in the ocean (our condolences to all “hope it is in my backyard” wishes),” space journalist Anatoly Zak wrote on Saturday.

For its part, NASA concurred with Roscosmos that the lander probe had plunged into the ocean west of Jakarta, but the U.S. space agency didn’t say how it arrived at the conclusion. “Because the probe was designed to withstand entry into the Venus atmosphere, it is possible it survived reentry,” NASA said.

The spacecraft had a titanium protective shell originally designed to get through the extreme atmosphere of Venus, which has the hottest surface of any planet in the solar system.

There was also uncertainty at the European Space Agency, which said in its last update on Saturday that the spacecraft hadn’t been spotted over Germany as expected and that it hadn’t received “any reports on visual direct observations of the final re-entry, or on any impacts on the ground.”

The Soviet Union launched Cosmos 482 from the Baikonur Cosmodrome in Kazakhstan, then a Soviet republic. The probe never got out of Earth’s orbit and moved closer to Earth’s atmosphere over the decades.

Today, Russia operates the Baikonur Cosmodrome, which retains a popular allure for its role in early space exploration and is still a vital part of the Russian space program.