John Quinn, chief operating officer of Exos Aerospace, poses for a portrait in his office on Friday, July 13, 2018, in Greenville, Texas. ( Brett Coomer / Houston Chronicle ) ...

This launch, called Mission 3 by Exos, came after two earlier flights of SARGE in August 2018 and this March.Both those launches suffered some issues that prevented them from reaching the edge of ...

John Quinn, chief operating officer of Exos, gave few details about the potential cause of the failure at the end of a webcast of the flight. “This is rocket science.

Spaceport America and EXOS made a joint announcement Tuesday of the successful "tie down test" of the Suborbital Autonomous Rocket with Guidance, known as SARGE, at the Caddo Mills airport in Texas.

Exos Aerospace performed what it called a "very successful" test launch of a reusable suborbital sounding rocket from New Mexico Aug. 25.

WASHINGTON — With a key test completed and a launch license in hand, Exos Aerospace is preparing for the first flight of its reusable suborbital rocket in April. In a statement, the company said ...