On this day

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

  1. 2020

    Chang'e 5 Mission

    Landed near Mons Rümker in Oceanus Procellarum.

2 December

  1. 1995

    SOHO Mission

    SOHO launched on an Atlas II rocket.

3 December

  1. 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.

  2. 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.

  3. 2014

    Hayabusa2 Mission

    Hayabusa2 launched on an H-IIA rocket.

  4. 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.

    OSIRIS-REx · Dante Lauretta

5 December

  1. 1956

    Comet Blanpain Comets and showers

    A Phoenicid meteor storm, from the remains of Comet Blanpain, was seen from Japan.

6 December

  1. 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.

    Hayabusa2

  2. 2020

    Chang'e 5 Mission

    The ascent stage docked with the orbiter in lunar orbit.

7 December

  1. 1972

    Apollo 17 Mission

    Apollo 17 launched, the only Apollo night launch.

  2. 1995

    Galileo Mission

    Went into orbit around Jupiter.

  3. 2018

    Chang'e 4 Mission

    Chang'e 4 launched on a Long March 3B rocket.

8 December

  1. 2019

    Comet Borisov Comets and showers

    Comet Borisov passed closest to the Sun.

11 December

  1. 1972

    Apollo 17 Mission

    Cernan and Schmitt landed in the Taurus–Littrow valley.

13 December

  1. 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.

    In the timeline · Edward Topham · John Shipley

  2. 2012

    Chang'e 2 Mission

    Flew past the asteroid 4179 Toutatis.

  3. 2024

    Lucy Mission

    Second gravity-assist flyby of Earth.

14 December

  1. 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.

    In the timeline · Benjamin Silliman

  2. 1972

    Apollo 17 Mission

    The last people to walk on the Moon left the surface.

  3. 2009

    NEOWISE Mission

    WISE launched on a Delta II rocket.

15 December

  1. 1984

    Vega 1 and 2 Mission

    Vega 1 launched.

16 December

  1. 2018

    Comet Wirtanen Comets and showers

    Comet Wirtanen passed about 11.6 million km from Earth.

  2. 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.

    Chang'e 5

18 December

  1. 2001

    Deep Space 1 Mission

    The ion engine was switched off and the mission ended.

19 December

  1. 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.

    Edward Howard

  2. 1865

    Comet Tempel–Tuttle Comets and showers

    Wilhelm Tempel discovered the comet now called Tempel–Tuttle.

  3. 1972

    Apollo 17 Mission

    The crew splashed down with 110.5 kg of samples.

20 December

  1. 1900

    Comet Giacobini–Zinner Comets and showers

    Michel Giacobini discovered the comet now called Giacobini–Zinner.

21 December

  1. 1984

    Vega 1 and 2 Mission

    Vega 2 launched.

22 December

  1. 1983

    International Cometary Explorer Mission

    A final close pass of the Moon sent it towards comet Giacobini–Zinner; it was renamed ICE.

23 December

  1. 1998

    NEAR Shoemaker Mission

    Flew past Eros after a failed engine burn delayed its arrival.

24 December

  1. 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.

    In the timeline

25 December

  1. 1758

    Halley's Comet Comets and showers

    Johann Palitzsch recovered Halley's Comet, proving Halley's prediction of its return.

  2. 2003

    Mars Express Mission

    Entered orbit around Mars; Beagle 2 was lost on landing.

27 December

  1. 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.

    In the timeline · Roberta Score

28 December

  1. 1904

    Comet Borrelly Comets and showers

    Alphonse Borrelly discovered Comet Borrelly.

31 December

  1. 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.

    Philip Bland

  2. 2018

    OSIRIS-REx Mission

    Entered orbit around Bennu, the smallest body ever orbited by a spacecraft.