Eighteen months on, the Juno mission to probe the otherwise little-known poles of Jupiter is producing incredible dividends. Check this out. This is just so cool on so many levels. One of the things that NASA and JPL have done is to publish the raw Juno-Cam images sent back by the probe, for everyday people … More By Jove, Jupiter’s impressive!
This week’s news that the first exo-moon might have been found, about 4000 light years away, is startling for several reasons. The first astonishing bit is that it was found at all. The majority of planets orbiting other stars have been found by light-curve analysis as the planet passes directly between the parent star and … More An exo-moon that’s as big as Uranus! But it ain’t Endor
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
One of the ways we justify going to Mars is that Earth is pretty much on the road to ruin just now, courtesy of human endeavour. We need a new planet. The only problem is that human nature doesn’t change, so we’d probably end up wrecking Mars too, likely while fighting viciously over how to … More Humanity – the scourge of the galaxy
There’s been a lot of speculation of late about a putative ‘Planet Nine’. No, Pluto hasn’t been restored to proper place – this one is a new idea, proposed in 2014 by Chad Trujillo and Scott S. Sheppard on the basis of the orbits of the trans-Neptunian objects Sedna and 2012VP (which hasn’t been given … More Planet Nine from Outer Space
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
There’s an apocryphal story about the time an eminent scientist was asked to write 500 words for a leading magazine on whether alien life might exist. The resulting article consisted of the words ‘nobody knows’, repeated 250 times. That point’s still true today. There are plenty of clues that point towards the idea that life … More Are there aliens? Nobody knows…