New Horizons and Ultima Thule – the bonus mission

On 1 January 2019 the New Horizons probe – the one that whipped past Pluto in 2015 – will encounter another outer solar-system body: 2014 MU69. Informally it’s become known as Ultima Thule. The neat part is that this body wasn’t even known when New Horizons was launched in January 2006. Back then, the probe … More New Horizons and Ultima Thule – the bonus mission

How GPS finds you and lets Google send you adverts

If both Special and General Relativity didn’t work precisely as Einstein said it did, GPS would be far less accurate than it actually is. Like, way off, meaning those auto-drive cars wouldn’t even get to the right road. Or any road. And we’d all be lost. Let me explain. GPS works by very precise distance … More How GPS finds you and lets Google send you adverts

Science silliness with Star Wars: The Last Jedi

One of the things the Star Wars franchise isn’t particularly known for is the ‘science’ part of the science fiction calculation. I’m talking about everything from visible bolts of laser light that move at about 130 mph (ie: 0.00002 percent of light-speed) through to one-climate worlds, space ‘fighters’ that manoeuvre like First World War dogfighters, … More Science silliness with Star Wars: The Last Jedi