Why is Nasa looking into UFOs and what has it found so far?

Last week, Nasa held the first public meeting of a panel
established to investigate sightings of UFOs. It came just before a
whistleblower former intelligence official told the Debrief that
the US government had ‘intact and partially intact’ craft of
non-human origin. Ian Sample talks to Prof David Spergel, the
independent chair of Nasa’s panel, about why this is happening now,
what they hope to find and why there is so much stigma attached to
this field. Help support our independent journalism at
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