Nasa’s Nancy Grace Roman Space Telescope is now scheduled to launch on August 30, 2026, as engineers complete final preparations for the observatory’s journey to deep space. Roman will be loaded with approximately 290 gallons (around 1,100 litres) of hydrazine fuel before being attached to the adapter that will connect it to a SpaceX Falcon Heavy rocket. The heavy-lift launcher will send the observatory toward its destin... [1152 chars]