Launch Photos: Spy Satellite NROL-71 Soars on Secret Mission Atop Delta IV Heavy Rocket: Page 2

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Another Setback

ULA Delta IV Heavy rocket with NROL-71 — United Launch Alliance

In mid-December, ULA again tried to launch the NROL-71 mission, only to find a hydrogen leak in one of the Delta IV Heavy rocket's boosters. The mission was called off to make fixes.

Another Target

The Delta IV Heavy rocket carrying the NROL-71 spy satellite for the U.S. National Reconnaissance Office is seen during tower rollback operations at Space Launch Complex-6 at Vandenberg Air Force Base in California. — United Launch Alliance

ULA initially aimed for Dec. 30 to attempt another launch of NROL-71, but stood down to complete work on the hydrogen leak fix.

NROL-71 Rolling Out

The NROL-71 spy satellite and its United Launch Alliance Delta IV Heavy rocket at Vandenberg Air Force Base in California.

Ready to Fly

By the second week of January, the Delta IV Heavy was ready to fly. This long-exposure image shows the rollback of the mobile service tower from the rocket during launch preparations.

Service Tower Rollback

The NROL-71 spy satellite and its United Launch Alliance Delta IV Heavy rocket at Vandenberg Air Force Base in California.

ULA NROL-71 Mission Art

Mission artwork for NROL-71, a reconnaissance payload that launched atop a United Launch Alliance Delta IV Heavy rocket on Jan. 19, 2019.

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Tariq is the award-winning Editor-in-Chief of Space.com and joined the team in 2001. He covers human spaceflight, as well as skywatching and entertainment. He became Space.com's Editor-in-Chief in 2019. Before joining Space.com, Tariq was a staff reporter for The Los Angeles Times covering education and city beats in La Habra, Fullerton and Huntington Beach. He's a recipient of the 2022 Harry Kolcum Award for excellence in space reporting and the 2025 Space Pioneer Award from the National Space Society. He is an Eagle Scout and Space Camp alum with journalism degrees from the USC and NYU. You can find Tariq at Space.com and as the co-host to the This Week In Space podcast on the TWiT network. To see his latest project, you can follow Tariq on Twitter @tariqjmalik.