Questions with the keyword 'spaceships'

• can you explain the thing that spaceships do called a gravity assist? by 298grak45 to Daniel, Maggie, Ry, Scott Comments: (No comments so far )
• how far do spaceships travel into the sky because when i’m on an airplane i’m pretty sure all i see are clouds not the by 755grak26 to Ry, Hannah, Daniel Comments: (No comments so far )