NASA's Roman Space Telescope is fueled and launching Aug. 30, nine months early, with the power to beam down 500 terabytes of cosmic data a year. Also this week: a spent Falcon 9 upper stage slams into the Moon on Aug. 5, and astronomers caught a wandering black hole shredding a star 750 million light-years away.

The Full Picture

Roman is fueled, early, and about to drown Hubble in data

• What happened: NASA pumped hydrazine into the Nancy Grace Roman Space Telescope...