Space

Under pressure from SpaceX, some members of the European Space Agency are already considering a successor to the in-development Ariane 6 launcher.

The Hubble Space Telescope has resumed science operations following more than three weeks of troubleshooting involving its gyroscopes.

Comprehensive captive-carry flight-test campaign awaits 747 and LauncherOne combination following successful fit check with rocket and wing pylon.

How Stratolaunch is set up to handle the loss of its financier and visionary leader may serve as a role model for kindred space ventures whose billionaire backers are still around.

Finding Earth 2.0 is high on the list of priorities as next-generation space observatories vie for support from astronomers and astrophysicists.

The Long March 8 was originally supposed to be a cheap expendable launcher. Somewhere in the Chinese space launch sector, that was not considered good enough.

Defense Department officials continue to lay the framework for a U.S. Space Force and will submit a proposal to the White House in early December.

The Callisto, program includes five flights, the last one involving landing on a barge in the Atlantic Ocean.

Russia is aiming to return venerable Soyuz rocket to flight as early as Oct. 25.

A pair of European- and Japanese-built orbiters are headed to Mercury for a flagship science mission to learn more about the Solar System’s innermost and least-explored terrestrial planet.

Here is a look at some of the more than two dozen public and private organizations that have unveiled lunar exploration and development programs.

House and Senate Democrats differ on how the U.S. military should operate in space, and an influential Senate lawmaker is advocating for a combatant command similar to U.S. Cyber Command.

Large-company consolidation push is noted in aerospace sector, which some observers see as a classic positioning tactic ahead of softening business climate.

The launch of AEHF-4 lays the groundwork for faster data transfer for the U.S. military, as the Air Force plans for rapid acquisition of a follow-on program.

Allen’s death from non-Hodgkin lymphoma comes as one of his most cherished projects, the Stratolaunch air-launch system carrier aircraft, nears its long-delayed first flight.

Operational trial of oceanic surveillance system expected to begin next year in Caribbean region.

Awards tallying nearly $2.3 billion go to ULA, Northrop Grumman and Blue Origin.

NASA intends to conduct its own inquiry into the Oct. 11 Soyuz MS-10 launch abort.

The booster anomaly was identified shortly after liftoff on Oct. 11, triggering a ballistic re-entry of the capsule and subjecting the crew to higher-than-normal G forces.

Two LE-9 expander bleed engines have run, one for 1,000 sec. The H3 launcher project is on schedule.

Hayabusa2 is to depart Ryugu in late 2019 and parachute samples from the asteroid down to Earth in December 2020.

Five rules for portfolio-shaping.

NASA chief Jim Bridenstine aims to bridge partisan divide with political know-how.

Japan’s solid-propellant rocket is moving quickly from one version to the next. A new first stage will be the solid-propellant booster from H3.

Visiting near-Earth objects with multiple smallsats is to serve as a pilot run for a shared mission.