"Death plunge" refers to a sudden and dangerous fall that often results in death.
Sentences with «death plunge»
No End to Saturn's Mysteries in Cassini's Closing Days: Scientists are preparing for a bountiful harvest of science data when the Cassini probe makes its final death plunge into Saturn's atmosphere. (space.com)
If it already may be seriously depleted in its meager reserves of volatiles, how much will be left available for its final death plunge into the solar corona?» (space.com)
Brainstorm Health: Gun Violence and Public Health, Inversion Mergers, Breast Cancer Deaths Plunge (fortune.com)