The uncrewed aircraft manufacturer says it has completed two test flights of a Gray Eagle 25M controlled remotely via a ...

NASA’s ICESat-2 has hit an incredible milestone: 2 trillion laser shots fired from orbit! This Earth-monitoring marvel has ...

It’s a miracle. There are now signs the Ukrainians could actually beat the huge Russian army. Watch the evidence. Ukraine’s heroes have shamed us. These real men have shown us something that ...

Failure to agree on global grants to help low- and middle-income countries to achieve net-zero emissions cannot be the end of the story. An urgent solution is needed.

Out on the playground, small groups of children are running around with clipboards and long strips of paper. It is “Pi Day,” and the ... on the unit circle and to introduce the concept of polar ...

A detailed comparison of ACORN-SAT and AWAP data can be found in the research paper linked to from the ACORN-SAT website ... They are not global – for example high elevations and polar regions require ...