Though Moscow was once at the forefront of space travel—it sent the first man into space—its cosmic ambitions have dimmed thanks to poor financing and endemic corruption.

It has been eclipsed by China and the United States, which have both clocked major wins in space exploration and research in recent years.

The Russian space agency Roscomos said in a statement that it had signed an agreement with China's National Space Administration (CNSA) to develop a "complex of experimental research facilities created on the surface and/or in the orbit of the Moon".

The CNSA, for its part, said that the project was "open to all interested countries and international partners" in what experts said would be China's biggest international space cooperation project to date.

University of Arizona researcher Jekan Thanga is taking scientific inspiration from an unlikely source: the biblical tale of Noah's Ark. Rather than two of every animal, however, his solar-powered ark on the moon would store cryogenically frozen seed, spore, sperm and egg samples from 6.7 million Earth species.

Thanga and a group of his undergraduate and graduate students outline the lunar ark concept, which they call a "modern global insurance policy," in a paper presented over the weekend during the IEEE Aerospace Conference.

"Earth is naturally a volatile environment," said Thanga, a professor of aerospace and mechanical engineering in the UArizona College of Engineering. "As humans, we had a close call about 75,000 years ago with the Toba supervolcanic eruption, which caused a 1,000-year cooling period and, according to some, aligns with an estimated drop in human diversity. Because human civilization has such a large footprint, if it were to collapse, that could have a negative cascading effect on the rest of the planet.

France has begun its first military exercises in space to test its ability to defend its satellites, in a sign of the growing competition between world powers in Earth's orbit.

Michel Friedling, the head of France's newly created Space Command, called the exercises a "stress test of our systems" and said they "were a first for the French army and even a first in Europe."

Codenamed "AsterX" in a nod to the first French satellite Asterix from 1965, the drills will simulate the monitoring of a potentially dangerous space object, as well as a threat to a satellite.

"A series of events appear and create crisis situations or threats against our space infrastructure, but not only this," Friedling told reporters from the Space Command headquarters in Toulouse in southwest France.

The new US Space Force and German space agencies are taking part in the French exercises, which began on Monday and will run until Friday.

France's Space Command was announced in 2019 and is set to number 500 people by 2025.

"Our allies and adversaries are militarising space... we need to act," Defence Minister Florence Parly said at the time.