Nyos: the night a lake released gas
Sudden deaths of people and animals were investigated through water, gas and terrain measurements.
An explanation exists#0273
OPEN ARCHIVE
Observations
Documented events, historical claims and public reports. Event dates and review status are listed separately; unidentified does not mean extraterrestrial.
Event year, not the article publication date.
Chandrayaan-1: how water appeared in lunar soil spectra
Measurements by three spacecraft changed the picture of a dry lunar surface. What did the instruments actually detect?
An explanation exists#0183
17 March 2013 flash: an impact that left a new crater
A bright ground-based flash received an independent check when LRO identified a fresh surface crater.
An explanation exists#0103
Krakatau: an explosion, waves and extraordinary sunsets
The August 1883 eruption left records in the ocean, atmosphere and observers’ accounts around the world.
An explanation exists#0097
Laki: the dry haze over Europe
The 1783–1784 eruption linked Icelandic lava fields with an unusual haze thousands of kilometres away.
An explanation exists#0095
Murchison: space rocks and organic chemistry
A witnessed fall supplied samples for research into chemistry preceding life.
An explanation exists#0084
Carancas: the meteorite that made a crater
A witnessed 2007 fall linked to a crater and laboratory-studied fragments.
An explanation exists#0074
May 2024 auroras: skies far from the poles
A geomagnetic storm brought auroras to places where they are rarely expected.
An explanation exists#0029
Tunguska: an explosion above the Siberian taiga
A historical event studied through physical effects, witness accounts and modelling.
An explanation exists#0027