The taikonauts underwent medical examinations in orbit including bone density measurements and electrocardiogram checks.

Zhang Lu previously served in the People’s Liberation Army Air Force and achieved the rank of Senior Colonel.

Wu Fei was born in 1993 and selected as part of the third taikonaut group in October 2020.

The Shenzhou-21 crew utilized electroencephalography equipment for cognitive monitoring studies.

The Shenzhou-21 crew has been in orbit for two months.

Wangtian, Lanyue, Zhuiyun, and Zhumeng are the names given to the four mice that went to space via popular vote.

Zhang Hongzhang was born in 1986 and selected as part of the third taikonaut group in October 2020.

Wu Fei is the Flight Engineer for the Shenzhou-21 mission and this is his first trip into space.

One of the female mice conceived and delivered nine offspring on December 10th after returning to Earth.

A project on the in-situ electrochemical and optical study of lithium-ion batteries has commenced aboard the Tiangong Space Station.

The crew completed disassembly and reassembly of complex fluid experiment modules in the fluid physics experiment cabinet.

The crew performed maintenance work on new structural cables during the Shenzhou-21 mission.

Wu Fei joined the Communist Party of China in 2015.

The surviving six offspring of the space-flown mice are reportedly active and healthy.

Before becoming a taikonaut, Wu Fei was an engineer at the China Aerospace Science and Technology Corporation.

The crew conducted routine maintenance and software upgrades on space station equipment last week.

Zhang Lu is the Commander and Pilot for the Shenzhou-21 mission and has flown previously on the Shenzhou-15 mission.

The Shenzhou-21 taikonauts conducted a spacewalk three weeks prior to the report.

Arabidopsis thaliana seedlings were introduced in the Wentian experimental module during the Shenzhou-21 mission.

The Shenzhou-21 crew conducted sample collection using scientific gloves last week.

Zhang Lu was awarded the Spaceflight Merit Medal (Third Class) after the Shenzhou-15 mission.

Before being selected as a taikonaut, Zhang Hongzhang was a researcher at the Dalian Institute of Chemical Physics.

Researchers plan to study the growth and development of the remaining offspring of the space-flown mice.

Four mice were flown alongside the Shenzhou-21 trio during their launch on October 31st.

Zhang Lu was born in November 1976 and selected as part of China's second taikonaut group in 2010.

The Shenzhou-21 mission crew includes taikonauts Zhang Lu, Wu Fei, and Zhang Hongzhang.

Zhang Lu joined the Communist Party of China in April 1999.

NORAD starts tracking Santa Claus when he takes off from the North Pole.

Satellites in the SBIRS network have more sensitive sensors than those on DSP spacecraft, which will be phased out once the SBIRS constellation is complete.

The NORAD Santa Tracker will be online at 6:00 ET (11:00 GMT) on December 24.

The US Space Force is currently launching satellites to build a new infrared early warning constellation known as SBIRS-GEO (Space Based Infrared System Geosynchronous Earth Orbit).

Over 1,000 volunteers dedicate their time every Christmas at the NORAD headquarters at Peterson Space Force Base in Colorado Springs, Colorado.

Children who want to know Santa Claus's location can call the number (+1) 877-HI-NORAD (877-446-6723) or visit the website NORADSanta.org.

In 2025, NORAD will continue its tradition of tracking Santa Claus on radar as he travels around the world with his reindeer-drawn sleigh.

NORAD can track Santa Claus using infrared sensors installed on satellites designed to detect heat from rocket or missile launches.

NORAD volunteers answer hundreds of thousands of phone calls each year.

The Continental Air Defense Command (CONAD) is the precursor to the North American Aerospace Defense Command (NORAD).

The NORAD Santa Tracker is also available as an app for Android and iOS.

NORAD does not know in advance the route that Santa Claus will take during his flight.

NORAD began publishing public updates on Santa Claus's location every Christmas starting in 1960.

Every year on December 24, Santa Claus departs from the North Pole early in the morning for his journey around the world.

NORAD's radar has intercepted Santa Claus's sleigh numerous times as it entered its airspace.

NORAD uses a series of satellites known as the Defense Support Program (DSP) to detect light and heat signatures from intercontinental ballistic missiles and rocket launches.

The Interstage on Soyuz-5/Sunkar is regarded as visually superior to hot staging sections on R-7, Proton, or Zenit.

The payload fairing of the Falcon 9 rocket contains the CSG-3 SAR-satellite for the Italian Space Agency and Ministry of Defence.

SpaceX's Falcon 9 rocket will be vertical for launch for the 166th and final time in 2025.

The Falcon 9 launch is scheduled for NET 02:09:19 UTC.

Land Space plans to increase the ZQ-3's production capacity to 15 annually.

Land Space is investing 1 billion RMB to purchase equipment.

The interstage on Soyuz-5/Sunkar is perceived as more aesthetically appealing than the hot staging sections on the R-7, Proton, or Zenit launch vehicles.