The first launch opportunity of a Pegasus XL rocket, carrying NASA’s Ionospheric Connection Explorer (ICON), was skipped due to communication issues between the ground team at Cape Canaveral Air Force Station in Florida and Northrop Grumman’s L-1011 aircraft, Stargazer. The launch team is re-evaluating; the launch window remains open until 10:55 p.m. EDT.
Stargazer Enters the Drop Box

Northrop Grumman’s Stargazer aircraft, carrying the company’s Pegasus XL rocket with NASA’s Ionospheric Connection Explorer (ICON), has entered the drop box – a 40-mile long area that the rocket can be dropped in. At this point, Stargazer has reached the required altitude of 39,000 feet. In just a few moments, the rocket will drop from …
ICON Launch Countdown Continues

Follow along on NASA TV and the agency’s website for the live launch broadcast, happening now. Before NASA’s Pegasus XL rocket can carry the agency’s ICON satellite to low-Earth orbit, Northrop Grumman’s L-1011 Stargazer aircraft has to reach an altitude of 39,000 feet, which requires about an hour of flight time. Once there, Pegasus will …
Stargazer Aircraft Now Airborne

Northrop Grumman’s Stargazer aircraft is airborne after taking off from the Skid Strip runway at Cape Canaveral Air Force Station. Stargazer is carrying the company’s Pegasus XL rocket – a small expendable rocket that is the only operational air-launched rocket in the world. Pegasus is attached beneath the aircraft and will be carried to an …
Stargazer Preparing for Takeoff

Stargazer’s engines have powered up on the Skid Strip runway at Cape Canaveral Air Force Station in Florida. Takeoff is scheduled for 8:33 p.m. EDT. Stick with us here on the blog for live updates.
Stargazer Aircraft Carrying Pegasus XL Rocket Positioned for Takeoff

A Northrop Grumman L-1011 Stargazer aircraft is positioned for takeoff from the Skid Strip runway at Cape Canaveral Air Force Station. Takeoff is scheduled for 8:33 EDT tonight. Attached to the aircraft is a Pegasus XL rocket, carrying NASA’s Ionospheric Connection Explorer, or ICON, satellite. Weather officials are predicting an 80% chance of favorable weather …
ISS Daily Summary Report – 10/10/2019
P6 Battery Extravehicular Activity (EVA) #2 (US EVA#57) Preparations: Today, the ISS crew completed multiple road-to activities in preparation for the P6 Battery EVA that is planned for Friday, October 11. The P6 Battery EVA#2 will focus on upgrading the Solar Array Channel 2B with a third and final Li-Ion battery. Today’s preparations included the …
Teams Prepare for ICON Launch Tonight

The Ionospheric Connection Explorer (ICON) will launch tonight on a Northrop Grumman Pegasus XL rocket from the company’s Stargazer L-1011 aircraft. The Stargazer will take off from the Cape Canaveral Air Force Station at 8:33 p.m. EDT. The first launch attempt for ICON is 9:30 p.m. EDT. Follow live coverage here on the blog as well …
Space Biology, Human Research Day Before Spacewalk

Two astronauts will suit up Friday morning for the second spacewalk in a series of five this month to upgrade International Space Station power systems. In the meantime, the duo and the rest of the Expedition 61 crew are staying on top of ongoing microgravity research today aboard the orbiting lab. NASA Flight Engineers Andrew …
“Another Planet:” Exploring Hunga Tonga-Hunga Ha’apai

By Grace Callahan /HUNGA TONGA-HUNGA HA’APAI, KINGDOM OF TONGA/ Hello from the newest land mass on earth! I’m Grace, and today was my first day on Hunga Tonga Hunga Ha’apai. (I spent yesterday on the ship, helping to ensure that our anchor wouldn’t slip and allow us to be blown out to sea.) After breakfast …


