23.
astronomers have discovered more than 300
objects that could cross Earth's orbit, though none is
predicted to hit any time soon.
ASo far
BAs
CProvided that
DNonetheless
EOn condition that
astronomers have discovered more than 300
objects that could cross Earth's orbit, though none is
predicted to hit any time soon.
ASo far
BAs
CProvided that
DNonetheless
EOn condition that