Name of sighting / event | Date | Location | Effects | Media | Contact | Abduction |
| Jan, 1878 | USA | No | No | No | No |
| 1880s | U K | No | No | No | No |
| 1897 | USA | No | No | No | No |
| Apr, 1897 | USA | Yes | No | Yes | No |
| -1930- | Alaska | No | Yes | Yes | No |
| -1939 | USA | No | No | Yes | No |
Dates: 1940-1949 |
| 1940s | Europe | No | No | No | No |
| -1941- | USA | Yes | Yes | Yes | No |
| Feb,1942 | USA | Yes | Yes | No | No |
| 1946 | Norway | No | No | No | No |
| 1947 | USA | Yes | No | Yes | No |
| 1947 | USA | No | No | No | No |
| 1947 | USA | No | No | No | No |
| June, 1947 | USA | No | No | No | No |
| Jly, 1947 | USA | Yes | No | No | No |
| June, 1947 | Malta | No | No | Yes | No |
| July, 1947 | USA | Yes | Yes | No | No |
| July, 1947 | USA | Yes | Yes | Yes | No |
| Jan, 1948 | USA | No | No | No | No |
| Mar, 1948 | USA | Yes | No | No | No |
| July, 1948 | USA | Yes | No | No | No |
| Oct, 1948 | USA | No | No | No | No |
| Mar, 1949 | USA | Yes | No | No | No |
| Aug, 1949 | USA | No | Yes | No | No |
Dates: 1950-1959 |
| Mar, 1950 | Mexico | No | No | No | No |
| Apr, 1950 | Italy | No | No | No | Yes |
| May, 1950 | S Amer | Yes | No | Yes | No |
| May, 1950 | USA | No | Yes | No | No |
| Aug, 1950 | USA | No | Yes | No | No |
| Feb, 1951 | Canada | Yes | No | No | No |
| July, 1951 | USA | Yes | No | No | No |
| Aug, 1951 | USA | No | Yes | No | No |
| Sept, 1951 | USA | Yes | No | No | No |
| Apr, 1952 | USA | Yes | No | No | No |
| May, 1952 | USA | No | No | No | No |
| May 1952 | Brazil | No | Yes | No | No |
| July, 1952 | USA | Yes | No | No | No |
| July, 1952 | USA | No | Yes | No | No |
| July, 1952 | Peru | Yes | Yes | No | No |
| July, 1952 | USA | No | Yes | No | No |
| Aug, 1952 | USA | No | No | Yes | No |
| Aug, 1952 | USA | No | No | Yes | No |
| Aug, 1952 | USA | No | Yes | No | No |
| Aug, 1952 | Australia | Yes | No | No | No |
| Aug, 1952 | USA | Yes | No | No | No |
| Aug, 1952 | Gnland | No | No | No | No |
| Sept, 1952 | Den/Nor | No | No | No | No |
| Sept, 1952 | USA | Yes | No | No | No |
| Oct, 1952 | France | Yes | No | No | No |
| Dec, 1952 | G/Mexico | No | No | No | No |
| Jan, 1953 | USA | No | No | No | No |
| May, 1953 | USA | Yes | No | Yes | No |
| Aug, 1953 | USA | No | No | No | No |
| Nov, 1953 | USA | No | No | No | No |
| Dec, 1953 | USA | No | No | No | No |
| Feb 1954 | USA | No | No | Yes? | No |
| Aug, 1954 | France | No | No | Yes | No |
| Sept, 1954 | France | No | No | Yes | No |
| Oct, 1954 | UK | No | No | Yes | No |
| July, 1955 | U K | No | No | No | No |
| Aug, 1955 | USA | Yes | No | Yes | No |
| Oct, 1955 | Russia | No | No | No | No |
| 1956 | USA | Yes | Yes | No | No |
| 1956 | Ocean | No | No | No | No |
| Jly, 1956 | S.Africa | No | Yes | No | No |
| Aug, 1956 | U K | Yes | No | No | No |
| Nov, 1956 | USA | No | No | No | No |
| 1957 | USA | No | Yes | No | No |
| Feb 1957 | USA | No | No | No | No |
| July, 1957 | USA | Yes | No | No | No |
| Sept, 1957 | Brazil | No | Yes | No | No |
| Sept, 1957 | USA | No | Yes | No | No |
| Oct, 1957 | Brazil | Yes | No | Yes | Yes |
| Nov, 1957 | USA | No | No | No | No |
| Nov, 1957 | USA | Yes | No | No | No |
| Dec, 1957 | USA | No | Yes | No | No |
| Dec, 1957 | USA | No | No | Yes | No |
| 57-58 | USA | Yes | No | No | No |
| Jan, 1958 | Brazil | No | Yes | No | No |
| Oct, 1958 | USA | No | No | No | No |
| Oct, 1958 | USA | Yes | No | No | No |
| Oct, 1958 | USA | Yes | No | No | No |
| Mar, 1959 | USA | Yes | No | No | No |
| Apr, 1959 | N Guinea | Yes | No | Yes | No |
| Sept, 1959 | USA | No | No | No | No |
Dates: 1960-1969 |
| 1960s | India | No | No | No | No |
| July, 1960 | Arg | Yes | Yes | No | No |
| Aug, 1960 | USA | Yes | No | No | No |
| Apr, 1961 | USA | No | No | Yes | No |
| Sept, 1961 | USA | Yes | No | Yes | Yes |
| Nov, 1961 | USA | No | No | Yes | No |
| Apr, 1962 | USA | Yes | No | No | No |
| Feb, 1963 | Australia | Yes | No | No | No |
| Aug, 1963 | USA | No | No | No | No |
| Apr, 1964 | USA | Yes | No | Yes | No |
| Apr, 1964 | USA | Yes | No | Yes | No |
| May, 1964 | U K | No | Yes | No | No |
| June 1964 | USA | No | No | No | No |
| June, 1964 | USA | Yes | No | No | No |
| Sept, 1964 | USA | Yes | Yes | No | No |
| Sept, 1964 | USA | Yes | No | Yes | No |
| Dec 1964 | USA | No | Yes | No | No |
| Dec, 1964 | U K | Yes | No | No | No |
| 1964/65 | USA | No | No | No | No |
| Jan 1965 | USA | No | No | Yes | No |
| Mar, 1965 | USA | Yes | No | No | No |
| July, 1965 | France | Yes | No | Yes | No |
| July,1965 | Alaska | No | Yes | No | No |
| Aug, 1965 | USA | Yes | Yes | No | No |
| Aug, 1965 | USA | Yes | Yes | No | No |
| Aug, 1965 | USA | No | Yes | No | No |
| Sept, 1965 | S Africa | Yes | No | No | No |
| Sept, 1965 | USA | Yes | No | No | No |
| Sept, 1965 | USA | Yes | No | No | No |
| Oct,1965 | USA | Yes | No | No | No |
| Dec, 1965 | Space | No | Yes | No | No |
| Dec, 1965 | USA | Yes | No | No | No |
| Jan, 1966 | USA | No | No | No | No |
| Jan, 1966 | USA | No | No | No | No |
| Jan, 1966 | Australia | Yes | No | No | No |
| Mar, 1966 | US | No | Yes | No | No |
| Mar 1966 | USA | No | No | No | No |
| Apr 1966 | USA | No | Yes | No | No |
| Apr, 1966 | Australia | Yes | No | No | No |
| Apr, 1966 | USA | Yes | No | No | No |
| Apr, 1966 | USA | No | No | No | No |
| June, 1966 | V. Nam | Yes | No | No | No |
| July, 1966 | USA | No | No | No | No |
| Aug 1966 | USA | No | No | No | No |
| Nov, 1966 | U K | Yes | No | No | No |
| Nov 1966 | USA | Yes | No | No | No |
| Nov, 1966 | USA | No | Yes | No | No |
| 1967 | USA | No | No | No | No |
| Jan, 1967 | USA | Yes | No | Yes | Yes |
| Feb 1967 | USA | No | No | No | No |
| Feb 1967 | USA | No | No | No | No |
| Mar, 1967 | USA | No | No | Yes | No |
| Mar,1967 | USA | No | Yes | No | No |
| May, 1967 | Canada | Yes | No | No | No |
| June, 1967 | Canada | No | No | No | No |
| July, 1967 | USA | Yes | No | No | No |
| Oct, 1967 | N Scotia | Yes | No | No | No |
| Oct, 1967 | U K | No | No | No | No |
| Oct, 1967 | U K | No | No | No | No |
| Nov 1967 | USA | No | No | Yes | No |
| Dec, 1967 | USA | Yes | No | Yes | Yes |
| Dec, 1967 | USA | No | No | Yes | No |
| 1967-68 | USA | No | No | No | No |
| 1968 | Atlantic O. | No | No | No | No |
| Feb1968 | USA | No | No | No | No |
| Apr, 1968 | USA | No | No | No | No |
| May 1968 | USA | No | No | No | No |
| July 1968 | USA | No | No | No | No |
| July 1968 | USA | No | No | No | No |
| Aug, 1968 | USA | Yes | No | Yes | Yes |
| Oct, 1968 | USA | No | No | No | No |
| Oct 1968 | USA | Yes | No | No | No |
| Oct 1968 | USA | Yes | No | Yes | No |
| Nov, 1968 | U K | Yes | No | Yes | No |
| 1969 | USA | Yes | No | No | No |
| Mar, 1969 | Russia | Yes | Yes | Yes | No |
| 1969 | GOM | No | No | No | No |
| May 1969 | Brazil | No | No | Yes | No |
Dates: 1970-1979 |
| 1970s | Canada | No | No | No | No |
| Jan, 1970 | Canada | Yes | No | Yes | No |
| Aug, 1970 | USA | No | No | No | No |
| 1970 | Canada | No | Yes | No | No |
| 1971 | USA | No | No | No | No |
| 1971 | Atl. O | Yes | No | No | No |
| Mar, 1971 | Austria | No | Yes | No | No |
| May, 1971 | USA | No | Yes | Yes | No |
| 1971 | USA | No | No | Yes | Yes |
| July, 1971 | USA | No | Yes | No | No |
| J/J/A, 1971 | USA | Yes | No | No | No |
| Sept, 1971 | Costa Rica | No | Yes | No | No |
| Nov, 1971 | USA | Yes | No | No | No |
| Feb, 1972 | Peru | No | No | Yes | No |
| Apr, 1972 | Space | No | Yes | No | No |
| Oct. 1972 | Uruguay | Yes | No | Yes | No |
| Oct, 1972 | USA | Yes | No | No | No |
| Oct, 1972 | USA | No | No | No | No |
| Feb, 1973 | USA | No | No | No | No |
| May, 1973 | USA | Yes | No | Yes | Yes |
| June 1973 | USA | Yes | Yes | No | No |
| Aug, 1973 | USA | No | No | No | No |
| Oct, 1973 | Space | No | Yes | No | No |
| Oct, 1973 | USA | Yes | Yes | Yes | No |
| Oct, 1973 | USA | No | No | No | No |
| Oct, 1973 | USA | No | No | No | No |
| Oct, 1973 | USA | No | No | No | No |
| Oct, 1973 | USA | Yes | No | Yes | Yes |
| Nov, 1973 | USA | No | No | Yes | Yes |
| Dec, 1973 | France | No | No | No | No |
| 1974 | USA | No | No | No | No |
| Jan, 1974 | Wales | No | No | No | No |
| Aug, 1974 | Mexico | No | No | No | No |
| Oct, 1974 | USA | No | No | No | No |
| Sept, 1974 | Canada | Yes | No | No | No |
| Jan, 1974 | USA | Yes | No | No | No |
| Jan, 1975 | Switz | Yes | Yes | Yes | No |
| Aug, 1975 | USA | Yes | No | Yes | Yes |
| Oct, 1975 | USA | Yes | No | No | No |
| Oct, 1975 | USA | Yes | No | No | No |
| Nov, 1975 | USA | Yes | No | Yes | Yes |
| Jan, 1976 | USA | Yes | No | Yes | Yes |
| Jan, 1976 | USA | No | No | No | No |
| June, 1976 | Spain | Yes | Yes | Yes | No |
| Aug, 1976 | Iran | Yes | No | No | No |
| Aug, 1976 | USA | Yes | No | Yes | Yes |
| Oct, 1976 | USA | No | No | No | No |
| Fall 1976 | USA | No | No | No | No |
| Apr, 1977 | Chile | No | No | No | ? |
| May, 1977 | US | Yes | No | No | No |
| May, 1977 | USA | No | No | No | No |
| July, 1977 | U K | Yes | No | No | No |
| Aug, 1977 | Brazil | Yes | Yes | No | No |
| Oct, 1977 | USA | No | No | No | No |
| Nov, 1977 | USA | Yes | No | Yes | No |
| Jan, 1978 | USA | No | No | No | No |
| Jan, 1978 | USA | Yes | No | Yes | No |
| May, 1978 | USA | No | No | No | No |
| May, 1978 | USA | Yes | No | Yes | Yes |
| May, 1978 | USA | Yes | No | No | No |
| Jly, 1978 | Spain | No | No | Yes | No |
| Oct, 1978 | USA | Yes | No | No | No |
| Oct, 1978 | Australia | Yes | No | No | No |
| Dec, 1978 | N Zealand | Yes | Yes | No | No |
| 1979 | France | No | No | No | No |
| 1979 | P. Rico | No | Yes | Yes | No |
| Apr, 1979 | Space | No | No | No | No |
| Jly, 1979 | USA | No | No | No | No |
| Aug, 1979 | USA | No | No | No | No |
| Nov, 1979 | U K | Yes | No | Yes | Yes |
Dates: 1980-1989 |
| 1980 | Russia | No | No | No | No |
| Aug, 1980 | USA | No | No | No | No |
| Sept, 1980 | Australia | Yes | No | No | No |
| Nov, 1980 | U. K. | No | No | ? | ? |
| Dec, 1980 | U K | Yes | Yes | Yes | No |
| Dec, 1980 | USA | Yes | No | No | No |
| 1979 | USA | No | No | No | No |
| 1981 | Germany | No | No | Yes | No |
| Jan, 1981 | France | No | No | No | No |
| Jan, 1981 | Mexico | Yes | Yes | No | No |
| Oct, 1981 | Can | No | Yes | No | No |
| Dec, 1981 | USA | No | No | No | No |
| 1982 | Portugal | No | No | No | No |
| 1982 | France | Yes | No | No | No |
| 1982 | USA | No | No | No | No |
| June, 1983 | USA | Yes | No | Yes | Yes |
| July, 1983 | Poland | No | No | No | No |
| Aug, 1983 | U K | No | No | Yes | Yes |
| Aug, 1983 | Poland | No | Yes | No | No |
| 1984 | USA | No | No | No | No |
| Oct, 1984 | Italy | Yes | No | Yes | No |
| 1984 | USA | No | No | ? | ? |
| 1985 | USSR | Yes | No | No | No |
| 1985 | USA | Yes | No | No | No |
| 1985 | USA | No | Yes | No | No |
| 1985 | Poland | No | No | No | No |
| Aug 1985 | Canada | No | No | Yes | No |
| Dec, 1985 | USA | No | No | Yes | Yes |
| 1986 | USA | Yes | No | No | No |
| Nov, 1986 | USA/Alaska | Yes | No | No | No |
| Jan 1987 | USA/Alaska | No | No | No | No |
| Aug 1987 | USA | No | Yes | No | No |
| June,1987 | USA | Yes | No | Yes | Yes |
| July, 1987 | USA | Yes | No | Yes | Yes |
| July, 1987 | USA | No | No | Yes | Yes |
| Sept, 1987 | Canada | Yes | No | Yes | Yes |
| Oct, 1987 | USA | No | Yes | No | No |
| Nov, 1987 | USA | Yes | Yes | No | No |
| Dec, 1987 | U K | Yes | Yes | Yes | Yes |
| 1988 | USA | No | No | No | No |
| 1988 | USA | No | Yes | No | No |
| Jan, 1988 | Australia | Yes | No | No | No |
| Mar, 1988 | USA | Yes | No | No | No |
| July, 1988 | Australia | Yes | No | Yes | Yes |
| July, 1988 | Space | Yes | Yes | No | No |
| Oct, 1988 | USA | No | No | Yes | Yes |
| 1989 | USA | No | Yes | No | No |
| 1989 | USA | No | No | No | No |
| Mar, 1989 | Belgium | No | Yes | No | No |
| July, 1989 | USA | No | No | No | No |
| Aug, 1989 | Russia | No | Yes | Yes | No |
| Sept, 1989 | Russia | No | No | No | No |
| Sept 1989 | USA | No | Yes | No | No |
| Oct, 1989 | Russia | Yes | No | Yes | No |
| Nov, 1989 | USA | Yes | No | Yes | Yes |
| Nov, 1989 | Russia | Yes | No | Yes | No |
| Nov, 1989 | Canada | Yes | Yes | No | No |
Dates: 1990-1999 |
| 1990 | Turkey | Yes | No | No | No |
| 1990 | U K | No | Yes | No | No |
| 1990s | USA | No | Yes | Yes | No |
| Jly, 1990 | USA | No | Yes | No | No |
| Aug, 1990 | Germany | No | Yes | No | No |
| Nov, 1990 | France | No | No | No | No |
| Mar, 1991 | USA | No | Yes | No | No |
| Apr, 1991 | U K | No | No | No | No |
| Jly, 1991 | Mexico | No | Yes | No | No |
| Dec, 1991 | Pacific O. | Yes | No | No | No |
| 1992 | U K | Yes | No | Yes | Yes |
| 1993 | USA | No | No | No | No |
| Mar,1993 | U K | No | No | No | No |
| Mar, 1993 | U K | No | Yes | No | No |
| Mar, 1993 | Aus | No | Yes | Yes | Yes |
| Jan, 1994 | France | Yes | No | No | No |
| Mar, 1994 | USA | Yes | No | No | No |
| Aug, 1994 | USA | Yes | Yes | No | No |
| Sept, 1994 | Zim | No | No | Yes | No |
| Dec, 1994 | USA | Yes | No | No | No |
| Dec, 1994 | Aust | No | No | No | No |
| Jan, 1995 | U K | No | No | No | No |
| May, 1995 | USA | No | No | No | No |
| Aug, 1995 | USA | Yes | No | No | No |
| Nov, 1995 | USA | No | No | No | No |
| Nov, 1995 | N.S. Wales | No | No | No | No |
| Jan, 1996 | Brazil | Yes | Yes | Yes | No |
| Feb, 1996 | USA | No | No | No | No |
| Aug, 1996 | Russia | No | Yes | Yes | No |
| Sept, 1996 | USA | No | Yes | No | No |
| Oct, 1996 | Hungary | No | Yes | No | No |
| 1996 | Ireland | No | No | No | No |
| Aug, 1996 | S.Africa | No | Yes | No | No |
| Oct 1996 | USA | Yes | Yes | Yes | No |
| Dec, 1996 | Canada | No | No | No | No |
| 1997 | USA | No | Yes | No | No |
| Mar, 1997 | USA | Yes | Yes | No | No |
| Aug, 1997 | USA | No | No | No | No |
| Sept, 1997 | S Africa | No | No | No | No |
| Nov, 1997 | Wales | Yes | No | Yes | Yes |
| 1998 | USA | No | No | No | No |
| April, 1998 | UK | Yes | No | No | No |
| 1999 | U K | No | Yes | Yes | No |
| Feb, 1999 | USA | No | No | No | Yes |
| Feb, 1999 | Den. | No | No | No | No |
| Apr, 1999 | U K | No | No | No | No |
| July, 1999 | Sweden | No | No | No | No |
| Oct, 1999 | USA | Yes | No | Yes | Yes |
| Nov, 1999 | Argentina | No | No | No | No |
Dates: 2000-2009 |
| Jan, 2000 | USA | No | No | No | No |
| Feb, 2000 | USA | Yes | Yes | No | No |
| Mar, 2000 | Malaysia | Yes | No | No | No |
| Oct, 2000 | USA | No | Yes | No | No |
| Mar 2001 | Brazil | No | No | Yes | No |
| Mar, 2001 | USA | No | Yes | No | No |
| Apr, 2001 | USA | No | No | No | No |
| Jly, 2001 | USA | No | No | Yes | No |
| Oct, 2001 | USA | No | No | Yes | Yes |
| -2002- | USA | No | Yes | No | No |
| Jan, 2002 | USA | No | No | No | No |
| July, 2002 | USA | Yes | No | Yes | No |
| Aug, 2002 | USA | Yes | No | No | No |
| Oct, 2002 | USA | No | Yes | No | No |
| Oct, 2002 | USA | No | Yes | No | No |
| Oct, 2002 | USA | No | Yes | No | No |
| Nov, 2002 | U K | No | Yes | No | No |
| Nov, 2002 | Chile | Yes | Yes | No | No |
| Feb, 2003 | USA | No | Yes | No | No |
| Nov, 2003 | USA | No | No | No | No |
| Nov, 2003 | USA | No | No | No | No |
| Nov, 2003 | USA | No | Yes | No | No |
| Jan, 2004 | USA | Yes | No | No | No |
| Mar, 2004 | Mexico | Yes | Yes | No | No |
| Aug, 2004 | AUS | No | Yes | No | No |
| Aug, 2004 | U K | Yes | No | No | No |
| Oct, 2004 | USA | Yes | No | No | No |
| Nov, 2004 | USA | No | No | No | No |
| Dec, 2004 | USA | Yes | No | Yes | No |
| May 2005 | USA | No | No | No | No |
| Sept, 2005 | Mexico | No | No | No | No |
| Dec, 2005 | USA | Yes | No | No | No |
| June, 2006 | USA | No | No | No | No |
| Jly, 2006 | USA | Yes | No | No | No |
| Nov, 2006 | USA | No | No | No | No |
| Jan, 2007 | USA | No | No | Yes | No |
| Jan, 2007 | USA | No | Yes | No | No |
| Mar, 2007 | USA | No | Yes | No | No |
| April, 2007 | UK | No | No | No | No |
| Oct, 2007 | Greece | No | No | No | No |
| Jan, 2008 | USA | Yes | Yes | No | No |
| 2008 | U K | Yes | Yes | No | No |
| May, 2008 | USA | No | No | No | No |
| June, 2008 | S.Wales | No | Yes | No | No |
| Nov, 2008 | USA | No | No | No | No |
| 2009 | Canada | No | No | No | No |
| 2009 | USA | No | Yes | No | No |
| Apr, 2009 | Slovakia | No | Yes | No | No |
| Jan, 2011 | US | No | No | Yes | No |