Reuters Science News Summary

Following is a summary of current science news briefs.

Scientists make potential breakthrough ​in search for dark matter

Scientists have made a possible ​breakthrough in the hunt for dark matter — observing ‌hints ​of it during an experiment about a mile (1.6 km) underground in South Dakota — though they stopped short of saying they have finally detected this elusive cosmic component. The researchers described ‌a particle interaction documented at the Sanford Underground Research Facility — built in a former gold mine in the state's Black Hills region — that may have involved a hypothesized particle called a WIMP, short for "weakly interacting massive particle." This is one of the proposed ‌candidates for being a dark matter particle.

US, China arm for space warfare: hunter satellites and orbital weapons

In June, a ‌secretive unmanned Chinese spaceplane closely monitored by U.S. military analysts released a small satellite hundreds of miles above Earth in an orbital region crowded with commercial and military satellites. The object then looped around another Chinese satellite before returning towards the spaceplane, according to U.S. space-tracking firm LeoLabs. Little is ⁠known about ​the satellite or the mission. ⁠But the U.S. military operates a similarly secretive spaceplane resembling a small shuttle, also with no crew. Both programs reflect the rapidly evolving field of ⁠military space operations as Beijing and Washington prepare for the possibility of conflict extending into space, according to a Reuters review of documents, space-tracking ​data and interviews with current and former military officials.

Europe may accelerate space launches to meet satellite demand

The European Space ⁠Agency is considering increasing the launch rate of its Ariane 6 and Vega-C rockets in the coming years to overcome a potential bottleneck in satellite deployments, ⁠the ​agency's chief said on Wednesday. Director General Josef Aschbacher told reporters that a decision would be needed soon if forecasts of a sharp rise in demand, expected to peak around 2030, prove accurate.

Can sheep save the glaciers? Swiss scientists ⁠put wool to the test

As Switzerland struggles to contain the shrinking of its glaciers, researchers are conducting an unusual experiment in the ⁠Alps to see whether ⁠one of its less valued natural resources can help: sheep's wool. For years now, synthetic tarpaulins have been laid in summer over areas of ice and snow to reflect sunlight and reduce ‌heat absorption as ‌global warming melts away the ice sheets that have defined ​the high Alpine landscape for millennia.