It will be the first time a Space Force craft is refueled in orbit. Such a fuel shuttle could keep missions in space longer ...

"SPT2349-56 is a system so extraordinary that we may have caught one of the most massive clusters under formation at a very ...

"The high-resolution observations allowed us to pinpoint individual galaxies, while the lower-resolution data revealed the bigger picture—the extended gas that connects these galaxies and fuels ...

“During the Lunar Night, when the Moon is not receiving sunlight, some of the oxygen will be used for astronauts to breathe.