The Athena lander, built by Texas-based company Intuitive Machines, descended to the lunar surface but the orientation of the lander is currently unknown.

A lunar lander built by Intuitive Machines is scheduled to descend to the moon’s surface today, potentially marking the second landing by a private company on the moon in the last week, roughly a year after the aerospace firm completed the first lunar landing by an American spacecraft in decades.

After hours of uncertainty, officials from the Houston company said there are clues that the spacecraft is on its side, which could limit the mission’s scientific accomplishments.