The problem with going interstellar is that the distances involved are huge. Couple that with the fact that our friend Albert Einstein imposed an annoying speed limit on the universe, and going even to the nearest star at light-speed is going to take 4.3 years, Earth time. That’s always supposing you can get your rocket to… More Albert’s a spoilsport when it comes to going interstellar
I didn’t join in the Back to the Future fun the other week, on Back to the Future day. I mean, when it comes to time travel, I can join in now. Right? It was a pretty cool series. I never saw the second one, but I saw the first and the third – the… More Relatively going back to the future with Doc Einstein
Back in 2007, a science team under Eric Mamajek of the University of Rochester announced something unusual – a giant world, orbiting the star 1SWASP J140747.93-394542.6 with a ring system so immense it makes Saturn’s look like a kiddie toy. This world – officially known as 1SWASP J140747.93-394542.6b to differentiate it from its star 1SWASP… More Saturn’s no longer the Lord of the Rings…
Would anybody who lived on Pluto be called a ‘Plutocrat’, or something? I might not be the first to ask this question – I think Heinlein did it in Have Spacesuit, Will Travel, where his hero ended up being kidnapped by the Wormface aliens and taken to Pluto. Being Heinlein, the story was a lot better than… More Would a denizen of Pluto be a Plutocrat?
This post begins on a personal note. My Mum passed away, suddenly, last week. Mum got me writing, encouraged me to write – and was an avid reader of what I wrote. Including this blog, where her favourites were my science posts. Mum taught me to wonder about everything – about the way our curiosity fuels our… More Of the sense of wonder that casts light into the darkness
This week the SETI institute announced they were going to check the newly discovered Earth-size world 1400 light years away, Kepler 452b, for radio transmissions. I don’t think they’ll find any. Here’s why. The problem is that near-Earth size, insolation and orbit – which is all we know just now – doesn’t necessarily mean Earth-like. The planet was… More Why the new ‘Earth 2.0’ is more likely to be Venus 1.1
I was asked the other week, on Facebook, why Jupiter doesn’t just fly off into space. You know, it’s so enormous, surely the Sun can’t hold it. Actually, it can. Jupiter is around 300 times the mass of Earth, sure – but it’s only 0.09 percent the mass of the Sun. Not only can the Sun… More The Sun’s big. Really big. And really grippy.