underground

Space 28 September 2020 By Leah Crane The ice cap that covers Mars’s south pole is composed of frozen water and carbon dioxideESA/DLR/FU Berlin / Bill Dunford A lake of liquid water surrounded by smaller ponds may be buried under 1400 metres of ice near the south pole of Mars. Radar observations had already suggested that…

By Leah Crane Lasers reflected by supermirrors sit at the bottom of a cavern in MunichJonas Igel Deep inside a concrete-filled pit just outside Munich, researchers are taking some of the best measurements ever of Earth’s motion. They’re using huge, red lasers set 15 metres below Earth’s surface to get data that could help make…