On this day in December
38 dates to remember in December: meteorites that fell, discoveries, space missions, comets and the birthdays of the people who built the science.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 2 3 5 6 7 8 11 13 14 15 16 18 19 20 21 22 23 24 25 27 28 31
1 December
- 2020
Chang'e 5 Mission
Landed near Mons Rümker in Oceanus Procellarum.
2 December
- 1995
SOHO Mission
SOHO launched on an Atlas II rocket.
3 December
- 1917
A shower of stones over Strathmore Fall
Several stones fall across the Strathmore valley in Perthshire and Angus, the largest meteorite fall recorded in Scotland.
- 1980
The Kaidun meteorite falls in Yemen Fall
A small stone that fell on a military base in Yemen in 1980 and turned out to be a jigsaw of many different worlds.
- 2014
Hayabusa2 Mission
Hayabusa2 launched on an H-IIA rocket.
- 2018
OSIRIS-REx reaches Bennu Mission
NASA's OSIRIS-REx arrives at the asteroid Bennu, finding a rugged surface covered in boulders and even throwing out small pebbles into space.
5 December
- 1956
Comet Blanpain Comets and showers
A Phoenicid meteor storm, from the remains of Comet Blanpain, was seen from Japan.
6 December
- 2020
Ryugu samples land in Australia Mission
Hayabusa2's capsule lands in the South Australian desert with about 5.4 grams of asteroid. The samples are like CI chondrites, but untouched by Earth's air and water.
- 2020
Chang'e 5 Mission
The ascent stage docked with the orbiter in lunar orbit.
7 December
8 December
- 2019
Comet Borisov Comets and showers
Comet Borisov passed closest to the Sun.
11 December
- 1972
Apollo 17 Mission
Cernan and Schmitt landed in the Taurus–Littrow valley.
13 December
- 1795
The Wold Cottage stone lands in Yorkshire Fall
A stone of about 25 kilograms buries itself in a field at Wold Cottage, near Wold Newton, only metres from a farm worker. The landowner, Edward Topham, exhibits it in London and later builds a monument on the spot.
- 2012
Chang'e 2 Mission
Flew past the asteroid 4179 Toutatis.
- 2024
Lucy Mission
Second gravity-assist flyby of Earth.
14 December
- 1807
Weston: the first recorded American fall Fall
Stones fall on farms around Weston, Connecticut, after a fireball and explosions. Yale's Benjamin Silliman and James Kingsley investigate within days and publish a careful report.
- 1972
Apollo 17 Mission
The last people to walk on the Moon left the surface.
- 2009
NEOWISE Mission
WISE launched on a Delta II rocket.
15 December
- 1984
Vega 1 and 2 Mission
Vega 1 launched.
16 December
- 2018
Comet Wirtanen Comets and showers
Comet Wirtanen passed about 11.6 million km from Earth.
- 2020
Chang'e 5 returns Moon rock Mission
China's Chang'e 5 brings back about 1.7 kilograms of lunar rock and soil, including volcanic rock about 2 billion years old, younger than any Apollo sample.
18 December
- 2001
Deep Space 1 Mission
The ion engine was switched off and the mission ended.
19 December
- 1798
A shower of stones falls at Benares Fall
Villagers near Benares, now Varanasi, in India see a fireball and collect fallen stones. Samples sent to London are among those Edward Howard analyses in 1802.
- 1865
Comet Tempel–Tuttle Comets and showers
Wilhelm Tempel discovered the comet now called Tempel–Tuttle.
- 1972
Apollo 17 Mission
The crew splashed down with 110.5 kg of samples.
20 December
- 1900
Comet Giacobini–Zinner Comets and showers
Michel Giacobini discovered the comet now called Giacobini–Zinner.
21 December
- 1984
Vega 1 and 2 Mission
Vega 2 launched.
22 December
- 1983
International Cometary Explorer Mission
A final close pass of the Moon sent it towards comet Giacobini–Zinner; it was renamed ICE.
23 December
- 1998
NEAR Shoemaker Mission
Flew past Eros after a failed engine burn delayed its arrival.
24 December
- 1965
Barwell: Britain's biggest meteorite shower Fall
On Christmas Eve, stones fall across the village of Barwell in Leicestershire. About 46 kilograms are recovered, the largest total mass of any British fall.
25 December
- 1758
Halley's Comet Comets and showers
Johann Palitzsch recovered Halley's Comet, proving Halley's prediction of its return.
- 2003
Mars Express Mission
Entered orbit around Mars; Beagle 2 was lost on landing.
27 December
- 1984
ALH 84001 is found Find
On the ice of the Allan Hills, Roberta Score spots a greenish stone of about 1.9 kilograms. It is later shown to be a 4-billion-year-old rock from Mars.
28 December
- 1904
Comet Borrelly Comets and showers
Alphonse Borrelly discovered Comet Borrelly.
31 December
- 2015
Murrili is pulled from a salt lake Find
The Desert Fireball Network team led by Philip Bland finds a 1.7-kilogram meteorite in the mud of Kati Thanda–Lake Eyre, a month after cameras caught its fireball.
- 2018
OSIRIS-REx Mission
Entered orbit around Bennu, the smallest body ever orbited by a spacecraft.