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Articles on Space

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A Martian meteorite in cross-polarized light. This meteorite is dominated by the mineral olivine. Each grain is about half a millimeter across. James Day

Meteorites from Mars help scientists understand the red planet’s interior

These rare rocks come in a few different types, which can tell geologists about Mars’ volcanic past and hint at its potential habitability.
An artist’s depiction of the heliosphere, the Sun’s region of influence in space. Little is known of the actual shape of the heliosphere. NASA

Scientists call the region of space influenced by the Sun the heliosphere – but without an interstellar probe, they don’t know much about its shape

An interstellar probe could help scientists answer fundamental questions about how the Sun influences Earth, space and other planets in the solar system.

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