In the vast tapestry of the universe, most galaxies shine brightly across cosmic time and space. Yet a rare class of galaxies remains nearly invisible — low-surface-brightness galaxies dominated by dark matter and containing only a sparse scattering of faint stars. One such elusive object, dubbed CDG-2, may be among the most heavily dark matter-dominated […]
Author: Guest authors
TB 26-02 Effects of Large Grain Size in Composite Overwrapped Pressure Vessel
The NASA Engineering and Safety Center (NESC) performed an assessment to characterize the effects of abnormal grain growth (AGG) within a metallic liner of a composite overwrapped pressure vessel (COPV). This effort focused on evaluating the mechanical response of the liner material, including the strain amplification factor (SAF), using a series of custom-designed coupons that […]
Only 52% Full!? Delta Air Lines’ 10 Emptiest International Routes
International markets are an exciting and important, but relatively small, part of Delta Air Lines’ total services. In the 12 months from November 2024 to October 2025, the SkyTeam member carried 29.1 million passengers on international flights.Some routes performed better than others while some routes performed far worse.
Train services resume between New Malden and Twickenham after four-day line closure for upgrades
Train services are running between New Malden and Twickenham in south west London again after Network Rail engineers carried out four days of improvements to the railway. In Kingston, engineers replaced 25 pairs of wheel timbers, the long blocks that support the tracks, on Kingston River Bridge. The team also carried out general maintenance in […]