The launch of Katalyst’s robotic servicing spacecraft LINK on Northrop Grumman’s Pegasus XL rocket was postponed Thursday.
Launch of Swift Boost Mission Delayed, Teams Reviewing Data


The launch of Katalyst’s robotic servicing spacecraft LINK on Northrop Grumman’s Pegasus XL rocket was postponed Thursday.

A major update to Eyes on Exoplanets was released on June 11, 2026, complete with a brand-new tutorial. The introductory welcome screen was completely updated, and in a major upgrade, every single star in the app (4,716 stars and counting) now has its own description panel, similar to those of the exoplanets in the application. […]

Four Expedition 74 astronauts had a light duty day on Wednesday following the previous day’s spacewalk for external robotics maintenance. The remaining three crew members from Roscosmos focused on cardiac research and lab maintenance aboard the International Space Station.

NASA air quality information is supporting CDC planning as World Cup crowds gather across North America.

The launch of Katalyst Space’s LINK, designed to boost the orbit of NASA’s Swift observatory, was postponed again Wednesday due to unfavorable weather conditions.

The Sun emitted a strong solar flare, peaking at 4:50 p.m. ET on June 30. NASA’s Solar Dynamics Observatory, which watches the Sun constantly, captured an image of the event. Solar flares are powerful bursts of energy. Flares and solar eruptions can impact radio communications, electric power grids, navigation signals, and pose risks to spacecraft […]

NASA astronauts Chris Williams and Jessica Meir concluded their spacewalk outside the International Space Station at 3:40 p.m. EDT. During the 7-hour, 20-minute spacewalk, Williams and Meir completed their primary objective to remove and replace a wrist joint on the Canadarm2 robotic arm.

We’re at the onset of summer skywatching, with a double feature of the Southern Delta Aquariids and alpha Capricornids in July and the dazzling Perseids approaching in August. Before we step outside to enjoy the celestial fireworks, we’re kicking off the season by observing Meteor Watch Day and Asteroid Day, both today, June 30. Meteors […]

Spacewalkers Chris Williams and Jessica Meir successfully removed the wrist joint that malfunctioned on May 27 during Canadarm2 robotic arm operations. They now are working to install the replacement joint, which was already attached to the orbital complex.

NASA astronauts Chris Williams and Jessica Meir began a spacewalk at 8:20 a.m. EDT today to replace a wrist joint that malfunctioned during normal Canadarm2 operations on May 27.