A bright flash of white light from straight ahead that passed directly under our airplane within 3-5 seconds of appearing

In or around February 24th, 2021 at approximately 1330 we were flying a training mission in a U.S. Navy C-2 greyhound flying at approx 10,000’ MSL at N37.00W076.00 on a rough heading of 360 magnetic right at the mouth of the Chesapeake Bay at approx 250 KIAS when a bright white flying object appeared in front of the airplane almost co-altitude. It was white as if it was radiating light and headed right toward our airplane at speeds unimaginable. Within 3-5 seconds it had passed just under our plane and I thought we would collide with the object but the pinpoint precision allowed it to fly head-on just below the belly of our plane. I doubt this was a UAV as the size and speed was not conducive to any I possess knowledge of. The encounter gave me the chills and I had a weird feeling in my stomach afterwards as we continued our flight. Both the other pilot and I recalled the encounter and pondered reporting it to the UAP reporting program which had recently been discussed after the F-18s in our area had sighted UAP’s recently but we did not decide to report the encounter at that time.