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sao bằng Cục Không gian châu Âu mất 19 năm mới cập nhật được bản windows 98 cho phần mềm của máy thăm dò sao Hỏa... :)
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Patch (chắp vá) management for the latest versions of Windows might the concern of most of us located here on Earth, but meanwhile, the European Space Agency’s (ESA) Mars Express spacecraft has received the first major update to its software in 19 years.


The probe (tàu thăm dò vũ trụ) first began orbiting (bay theo quỹ đạo quanh) Mars in 2003. Its current mission (nhiệm vụ): to discover of signs of liquid water on Mars, including a suspected 20 x 30km lake of salty water buried under 1.5 km of ice in the red planet’s southern polar region.

The agency said the upgrade will enable the spacecraft to view Mars and its moon Phobos with better levels of detail (chi tiết).

The Mars Advanced Radar for Subsurface and Ionospheric (tầng điện ly) Sounding (MARSIS) instrument on Mars Express sends low-frequency radio waves down towards the planet using its 40-metre long antenna.

Most of these waves are reflected from the planet’s surface, but significant amounts travel through the crust (vỏ trái đất) and are reflected at boundaries between layers of different materials below the surface, including ice, soil, rock, and water.

By examining the reflected signals, scientists can map the structure below the surface of Mars to a depth of a few kilometres and study properties such as the thickness and composition (thành phần cấu tạo, kết cấu) of its polar ice caps and the properties of volcanic and sedimentary (thuộc trầm tích) rock layers.

Tags: science

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