NASA tests new supersonic jet X-59 that flies at 1,175 km/h, almost as quiet as a car door slamming; in addition, the agency aims to reach Mach 1.5 without the aircraft producing much noise.

Written by Andriely Medeiros de Araújo

Published on 08/05/2026 at 09:34

Updated on 08/05/2026 at 09:35

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The X-59 reached 1,175 km/h in recent tests. Learn how NASA’s new jet aims to fly at Mach 1.5 with the sound of a car door closing.

NASA took a decisive step to enable the return of ultra-fast travel over inhabited areas with the new X-59 tests. During maneuvers performed on April 14, 2026, the aircraft demonstrated stability in precise turns and abrupt climbs, preparing the ground to break the sound barrier in an unprecedented way.

According to the website Aventuras na História, the project aims to reach Mach 1.5, but with a revolutionary difference: instead of the deafening boom that currently prohibits civilian supersonic flights over land, the jet will emit only a soft sound, comparable to the noise of a car door closing.

Altitude and Supersonic Speed Goals for NASA’s X-59

The QueSST (Quiet Supersonic Technology) project schedule sets ambitious goals for the next flight phases. NASA and manufacturer Lockheed Martin intend to take the X-59 to performance levels not seen in civil aviation for decades.

ARTICLE CONTINUES BELOW

The end of the traditional sonic boom

When an object breaks the sound barrier, it generates shockwaves that result in an audible explosion on the ground.

The X-59 reached 1,175 km/h in recent tests. Learn how NASA's new jet aims to fly at Mach 1.5 with the sound of a car door closing. — The X-59 reached 1,175 km/h in recent tests. Learn how NASA’s new jet aims to fly at Mach 1.5 with the sound of a car door closing. Source: NASA.

According to a statement from Lockheed Martin, continued testing will focus on different altitude ranges to calibrate this sound suppression.

Therefore, the jet’s success will not only be measured by travel time but by the acceptance of the noise by urban communities. If the “quiet boom” is validated, restrictions on supersonic flights over land could finally be reviewed.

History of Tests and Evolution of NASA’s Project

Although publicly unveiled in January 2025, the aircraft’s development already spans over a decade of research. Progress has accelerated in recent months, with the jet accumulating real flight experience in varied conditions.

October 2025: Inaugural flight performed in subsonic regime.

April 2026: Acrobatic maneuvers performed over the Mojave Desert to test control.

Test Volume: The aircraft has already completed nine experimental takeoffs successfully.

Stability: Recent turns and maneuvers proved that the exotic design does not compromise safety.

The feasibility of silent supersonic flight is seen as the “gateway” to a new era of air transport. While military aircraft already use these speeds, civil application depends on harmonious coexistence with cities. Furthermore, the interest of the global aeronautical industry is growing as the X-59 proves to be stable and controllable.

With information from the website Aventuras na História

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NASA tests new supersonic jet X-59 that flies at 1,175 km/h, almost as quiet as a car door slamming; in addition, the agency aims to reach Mach 1.5 without the aircraft producing much noise.

The X-59 reached 1,175 km/h in recent tests. Learn how NASA’s new jet aims to fly at Mach 1.5 with the sound of a car door closing.

Altitude and Supersonic Speed Goals for NASA’s X-59

The end of the traditional sonic boom

History of Tests and Evolution of NASA’s Project

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NASA tests new supersonic jet X-59 that flies at 1,175 km/h, almost as quiet as a car door slamming; in addition, the agency aims to reach Mach 1.5 without the aircraft producing much noise.

The X-59 reached 1,175 km/h in recent tests. Learn how NASA’s new jet aims to fly at Mach 1.5 with the sound of a car door closing.

Altitude and Supersonic Speed Goals for NASA’s X-59

The end of the traditional sonic boom

History of Tests and Evolution of NASA’s Project

Libya built over 4,000 kilometers of underground pipelines to bring water from the Sahara to coastal cities in a project that the government itself called the Eighth Wonder of the World.

Desert sand, previously discarded for being too smooth for concrete, becomes an ecological brick in the United Arab Emirates, dispensing with Portland cement, curing at room temperature, and attempting to transform dunes useless for construction into raw material for a new arid engineering.

He transformed an abandoned plastic water tank into an underground house in the “hobbit hole” style, using only repurposed pallet wood, without heavy machinery or expensive labor.

China transforms desert-devastated area into the world’s largest artificial forest, planting trees for 60 years, blocking sand that reached Beijing, and creating a “green lung” of 92,000 hectares in a region once considered lost.

Toyota launches “family hybrid van” with 7 or 8 seats, 1.8 hybrid engine, fuel consumption of up to 23.8 km/l, and a price equivalent to about R$ 104,000 without taxes, below the Tiggo 8 Pro Plug-in Hybrid sold in Brazil: meet the Noah Hybrid 2026 in Japan.

With 70 tons of rock removed by hand and an 800-year-old abandoned cave, a former businessman transforms a dark shelter into a modern home carved in the heart of the forest.

Scientists have created a material six times lighter than air, 75 times lighter than styrofoam, and that becomes stronger the more it is compressed: aerographite seems impossible, but it can reinforce structures, batteries, and satellites.

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