Atlas 5 – Spaceflight Now

September 17, 2026

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ULA launches 29 Amazon Leo satellites on Atlas 5 rocket from Cape Canaveral

May 29, 2026 Will Robinson-Smith

The Leo Atlas 07 mission was the second to last flight that Amazon booked on a United Launch Alliance Atlas 5 rocket. Liftoff from pad 41 at Cape Canaveral Space Force Station happened at 7:53 p.m. EDT (2353 UTC).

ULA confirms successful solid rocket booster test as Vulcan anomaly investigation continues

May 14, 2026 Will Robinson-Smith

The static fire test was conducted by Northrop Grumman, the manufacturer of the GEM 63XL solid rocket booster that can be used to help power United Launch Alliance’s Vulcan rockets. An in-flight anomaly was observed on one of those back in mid-February.

ULA launches 29 Amazon Leo satellites on Atlas 5 rocket from Cape Canaveral

April 27, 2026 Will Robinson-Smith

The mission, dubbed Amazon Leo 6 by United Launch Alliance and Leo Atlas 6 (LA-06) by Amazon Leo, is the 10th batch of production satellites launched to orbit. Liftoff from pad 41 at Cape Canaveral Space Force Station is scheduled for 8:53:30 p.m. EDT (0053:30 UTC).

ULA’s Atlas 5 rocket launches its heaviest payload ever with fifth Amazon Leo mission

April 3, 2026 Will Robinson-Smith

Liftoff from pad 41 at Cape Canaveral Space Force Station happened Saturday at 1:46 a.m. EDT (0546 UTC).

ULA sets sights on ramping up launch cadence in 2026

February 11, 2026 Will Robinson-Smith

The company came under new leadership in December following the departure of Tory Bruno, who left the company to join Blue Origin.

ULA Atlas 5 launch puts Amazon’s 180th broadband satellite in low Earth orbit

December 15, 2025 Will Robinson-Smith

Liftoff from Space Launch Complex 41 at Cape Canaveral Space Force Station occurred at 3:28 a.m. EST (0828 UTC), as the RD-180 engine on the booster roared to lift alongside five solid rocket boosters.

ULA launches Kuiper 2 mission on Atlas 5 rocket from Cape Canaveral

June 22, 2025 Will Robinson-Smith

The 27 Kuiper satellites will head to low Earth orbit on an Atlas 5 rocket flying in a 551 configuration, using five solid rocket boosters. ULA launched its rocket at 6:54 a.m. EDT (1054 UTC) on Monday, June 23.

Atlas 5 booster engine issue causes scrub of Monday’s Kuiper 2 launch

June 15, 2025 Will Robinson-Smith

The 27 Kuiper satellites will head to low Earth orbit on an Atlas 5 rocket flying in a 551 configuration, using five solid rocket boosters. ULA has not announced a new launch date following the scrub.

ULA begins de-stacking Vulcan rocket, pivots to Atlas 5 launch of Amazon’s Kuiper satellites for first 2025 mission

February 7, 2025 Will Robinson-Smith

The change in manifest comes as the U.S. Space Force’s Assured Access to Space continues the certification process for the Vulcan rocket. United Launch Alliance will begin stacking an Atlas rocket in the coming weeks.

ULA launches Atlas 5 rocket on the company’s 100th national security mission

July 29, 2024 Will Robinson-Smith

The United States Space Force 51 (USSF-51) mission was the 58th and final time an Atlas 5 rocket launches a national security payload. Liftoff happened at Tuesday, July 30, during a three-hour window that opens at 6:45 a.m. EDT (1045 UTC).

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