Netflix's Lost in Space may be a bona fide hit, with Nielsen data showing the reboot of the 1960s sci-drew drew 6.3 million viewers in the United States during its first three days of release.

Viewers watched the show on average for 2.5 hours, and the data offered indicated that plenty of viewers were watching Lost in Space in its entirety, with about 1.2 million reaching the 10th episode, the season finale, within that same three-day period.

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The streaming service doesn't release metrics, so the Nielsen data is based on estimates covering the United States, and only on televisions accessing Netflix. Phones, tablets and computers are not included in those estimates.

Variety reports that other recent Netflix offerings like Stranger Things 2 and Bright topped Lost in Space's early numbers. The second season of Stranger Things drew about 15.8 million viewers to its opening episode in three days, while the Will Smith-starring Bright brought in 11 million during the same time frame.

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With a major cliffhanger at the end of Season 1 and plans set in motion for a second season, it looks like Netflix may have enough reason to renew Lost in Space.

Steaming now on Netflix, the 10-episode first season of Lost in Space stars Toby Stephens, Molly Parker, Maxwell Jenkins, Taylor Russell, Mina Sundwall, Ignacio Serricchio and Parker Posey.