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Telemetry from both GRACE-FO satellites indicates that both satellites are healthy. For the next few days, they will be in different orbits, one slightly lower than the other. The different orbits cause them to move apart until the lower satellite is 137 miles (220 kilometers) in front of the other, the optimal separation distance for …

Crew: Captain Scott ”Maker” Tingle, USN ISS Location: Low Earth Orbit Earth Date: 4 March 2018 Earth Time (GMT): 13:30 Wow, time has gone by extremely fast. The mid-deployment phase will be short-lived for me this time, as the new crew (Drew Feustel, Ricky Arnold, and Oleg Artemyev) will arrive on March 23rd, and then …

Crew: Captain Scott ”Maker” Tingle, USN ISS Location: Low Earth Orbit Earth Date: 25 February 2018 Earth Time (GMT): 21:00 While flying fast-moving jets, we practice the art of recovering from unusual attitudes. We close our eyes, and let the instructor put the jet in an unexpected attitude. Sometimes straight up, sometimes straight down, sometimes …

At NASA's Building 836, the Spacecraft Labs Telemetry Station at Vandenberg Air Force Base in California, a United Launch Alliance (ULA) Delta II booster is removed from its shipping container on Monday, April 16, 2018. Once it was offloaded, preliminary checkouts and preflight processing began in preparation for the agency's Ice, Cloud and land Elevation …

NASA's ground tracking station at McMurdo, Antarctica, has acquired signals from both GRACE-FO spacecraft.

The GRACE-FO satellites have successfully separated from the Falcon 9 rocket and are now flying independently. They will be in different orbits for the next few days that will put them into the correct configuration for science operations.

Advanced Combustion via Microgravity Experiments (ACME):  The crew replaced the Combustion Integrated Rack (CIR) manifold bottles this morning. To prepare for the second part of the CLD Flames investigation the crew configured the ACME Chamber Insert, replaced the igniter tip, and replaced two ACME controllers.  The ACME experiment series being performed in the CIR includes …

The main engine has cut off, and second stage engine has ignited as planned on the Falcon 9 rocket carrying GRACE-FO to orbit. The payload fairing, which protects the payloads during launch, has been jettisoned.

The Expedition 55 crew members had a full complement of work today as they conducted microgravity research, trained to capture a resupply ship and prepared for a June spacewalk. Astronaut Norishige Kanai explored how living and working in space affects everything from fluid physics to the human body today. He first set up hardware to …

The SpaceX Falcon rocket lifted off Space Launch Complex 4E at Vandenberg Air Force at 12:47 p.m. PDT, carrying the NASA/German Gravity Recovery and Climate Experiment Follow-On mission. In about two and a half minutes, a series of critical milestones will occur in rapid succession, starting with main engine cutoff.