It took that bird 38 hours to fly more than 700km across the Coral Sea, according to findings published in the journal Pacific Conservation Biology on Monday. It was the first time scientists had ...

A species of heron has been tracked flying for almost two days non-stop between Australia and Papua New Guinea during its northern migration, scientists say.

This paper proposes a biased proportional navigation guidance (BPNG) law providing enhanced target observability for passive homing missile systems against a nonmaneuvering target. After examining the ...