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The united states. we have also seen a defence project to look at unidentified aerial phenomenon have increased over the past 19 years, and looking back at them and investigating them, they have determined that a lot of them were probably balloons, so as part of recent efforts to find them and be able to give tech to the more effectively, the us has apparently been resetting radar parameters so they are better at detecting objects of the low radar returns and high altitude, particularly low velocity profiles, things that were just drifting on the wind. that makes them more sensitive and it als...

Returns and it's also people like radar operators and air traffic controllers so i think the discussion should be broader than that. people are focusing just on two videos coming from a set of f-18s. >> recently in october astronomers said they spotted their first interstellar asteroid from beyond the solar system. what do you see when you look at that? >> well, you know, i have to admit to you when i ran this program, i was looking at two things. what is it and how does it work? we have deliberately stayed away from going down the rabbit hole of who is behind the wheel and what are their inte...

The area. >> thank you so much for weighing in, former british senior military office, michael kay. right now, we'll turn to ron mott. monitoring the situation from london. ron, what have you learned? >> good morning, again, dara. well, i'm looking at the flight returns, the radar returns and it would indicate to me as a pilot that before this plane lost its radar signal that there was some oscillating of the aircraft where it was doing one of these up in the air at flight level 27, up to flight level 30,000 feet in the air. obviously, something went wrong. we are getting reports from the as...

In the northern region of sinai. what we can tell you, there were 217 passengers, 17 of those children along with seven crew members. and what might be interesting if the black boxes, when they are recovered, if the pilot did in fact transmit some sort of trouble in flight, what specifically was that trouble? i have been looking over the radar returns here from flight data -- flight radar 24, one of online websites that you can follow and track flights in realtime. and this plane seemed to be at a rather level altitude at under 31,000 feet when something went wrong and suddenly the plane start...

Of bad weather that a pilot would have gotten in advance or maybe he wouldn't have taken off if he had gotten that information. >> it's a problem -- reuters is saying this airasia plane made what was described as an unbelievably steep climb before it crashed. what does that say to you? >> well first of all, you have to put it into context. we don't know where the radar was located, what kind of radar it was. when we remember flight 370, there were numerous reports that proved not to be completely accurate based on primary radar returns. we just don't know whether it's accurate or not. i'm not ...