On 3 December, China's Zhuque-3 made the first non-American attempt at landing a booster. The booster failed to land following a landing-burn anomaly. A second attempt on the 23rd, this time using the new Long March 2A launch vehicle, also failed.
On 6 December, contact with NASA's MAVEN Mars orbiter was lost. The last received telemetry was from the 4th, with the fragmented transmission of the 6th suggesting that the craft was rotating in an unintended way, and possibly having changed orbit. As of 16 January 2026, the mission has not yet been officially ended, although reestablishing communications with MAVEN is considered highly improbable.
PROCYON (Proximate Object Close flyby with Optical Navigation) was an asteroid flyby space probe that was launched together with Hayabusa2 on 3 December 2014 13:22:04 (JST). It was developed by University of Tokyo and JAXA.
It was a small (70 kg, approx. 60 cm cube), low cost (¥500 million) spacecraft.
It was intended to flyby the asteroid (185851) 2000 DP107 in 2016, but the plan was abandoned due to the malfunction of the ion thruster.
Image of the month
STS-116 spacewalk
STS-116 was the 33rd mission of the Space Shuttle Discovery. Launched in the late evening of 6 December, the main aims of the mission were the installation of one of the International Space Station's Integrated Truss Structure segments, rewiring of the power system, and personnel exchange. Also known as ISS-12A.1, STS-116 was the first mission to include a Swedish astronaut, Christer Fuglesang. It returned to Earth in the evening of 22 December.
This image, of the first of three EVA sessions, was taken on the fourth day of the mission. Flight engineer Robert Curbeam is on the left, opposite mission specialist 3 Christer Fuglesang. The image was taken over New Zealand; the South Island is visible on the left, while the southern portion of the North Island, mostly consisting of the Wairarapa region, is visible in the top-right.
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December Launches All times stated here are in UTC. See the complete list here.
Since November 2025, there are one more mid-importance, 29 more low-importance, two more NA-importance, and 20 more unknown-importance class articles, for a total of 52 more articles. There are also one more FA-class articles, one less GA-class articles, ten more C-class articles, 20 more Start-class articles, eleven more Stub-class articles, and four more lists.
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