Mercury in motion
If you missed yesterday’s rare Mercury transit across the Sun – the last was in 2006, the next in 2019 – then where were you! [Busy… – Ed] But even if you were paying attention you’re unlikely to have had as wondrous a view as that of Nasa’s Solar Dynamics Observatory. They’ve helpfully released a stunning time-lapse video compressing the entire 7 hour spectacle into a digestible couple of minutes. I recommend switching to full screen mode and cranking up the volume. Enjoy! [Video …