Permanent historical records · Updated 2026-11-03

1989 in United States of America — Page 4

Explore 134 historical events and records for United States of America in 1989.

Historical records for United States of America in 1989

Sorted by month and day. Records with no month are shown last. Showing 14 of 134 unique records.

134Unique records
4 of 4Page
14Named events on this page
11Named people on this page
1Places on this page

Other events (month unknown)

Tour de France

LeMond, Greg · Sport / Cycling

Winner of the Tour de France, 2nd win, with 37 shotgun pellets remaining in his body (including two in the lining of his heart)

Trial

North, Oliver · Warfare / Military

Fined $150,000

Triton Active Plumes

Hansen, Candice J. · Science / Astronomy

Hansen helps characterize active Triton plumes and their dark material carried by high-altitude winds.

Triton Cantaloupe Terrain

Soderblom, Laurence A. · Science / Astronomy

Voyager images reveal distinctive pitted terrain on Triton resembling the surface texture of a cantaloupe.

Triton Geysers

Soderblom, Laurence A. · Science / Astronomy

Voyager images reveal active geyser-like plumes erupting from Triton's surface.

Triton Methane Ice

Cruikshank, Dale · Science / Astronomy

Spectroscopic interpretation supports the presence of methane ice on Triton's surface during the Voyager encounter.

Triton Nitrogen Atmosphere

Broadfoot, Andrew L. · Science / Astronomy

Ultraviolet observations help establish that Triton possesses a thin nitrogen-rich atmosphere.

Triton Nitrogen Frost

Owen, Tobias · Science / Astronomy

Voyager results show that nitrogen frost dominates large areas of Triton's bright surface.

Triton Plume Height

Soderblom, Laurence A. · Science / Astronomy

Soderblom's team finds Triton plumes rising roughly eight kilometres before material is carried downwind.

Triton Plume Mapping

Kirk, Randolph L. · Science / Astronomy

Kirk helps analyse Voyager images showing long dark streaks associated with active plume deposits on Triton.

Triton Surface Volatiles

Brown, Robert H. · Science / Astronomy

Brown helps analyse nitrogen and methane volatiles on Triton's extremely cold surface.

Triton Young Surface

Soderblom, Laurence A. · Science / Astronomy

Voyager imagery indicates that much of Triton's surface is geologically young and has been extensively resurfaced.

Voyager Neptune Science Return

Stone, Edward C. · Science / Astronomy

Stone oversees the return of an extensive Neptune data set from all ten functioning Voyager 2 instruments.

You Can't Do That on Stage Anymore Vol. 3

Zappa, Frank Vincent · Los Angeles · Bandleader · Arts / Popular Music

Releases the third volume of You Can't Do That on Stage Anymore, continuing his curated live archive.

How these records were prepared

Generated from the World History Database historical_events table. Identical display records are collapsed; descriptions otherwise retain the stored text. Coverage and source quality vary. Check primary and specialist sources before citing individual historical claims.