Author: Olivia Hartman

Olivia Hartman is GeekBlog's general technology reporter, covering the wider world of tech beyond smartphones: AI and software, laptops and PCs, gaming, streaming, space, science, consumer gadgets, deals and the policy stories shaping the industry. A versatile journalist with a nose for what actually matters, Olivia turns breaking news and product launches into accessible, no-hype reporting for everyday readers.

NASA’s Goddard Instrument Field Team spent part of the summer hiking tidal cliffs in the north-west Scottish Highlands with instruments on their backs. The reason is a set of grey-green spots in Martian rock that could be the residue of ancient life, or could be ordinary chemistry. The rocks at Stoer are 1.2 billion years old and they contain the same spots, which makes them the control group.

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