Scientists have said in new studies that the core of Mars can look bigger than it actually is because of a previously unknown layer of molten rock which is surrounding it.

Researchers say a surprise layer of molten rock envelops Mars' liquid-metal core

The topography of Mars has been a subject of interest for researchers over the years and they have now found a new process to understand how the surface of the planet has changed over time due to the impact of space rocks.

Scientists use impact shock waves to understand new craters on surface of Mars

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Researchers say a surprise layer of molten rock envelops Mars' liquid-metal core

Scientists use impact shock waves to understand new craters on surface of Mars