In Germany it’s Jesus-Did-Something-Again-Day (at least here in the South. The North has significantly fewer public holidays because they aren’t aware of all those amazing, holiday-worthy things Jesus did around the year).
To be more precise, it’s Feast of the Ascension of Jesus Christ - or in German, Christ’s Heaven Trip (Christi Himmelfahrt).
That’s cool. But come on, the headline should have been the obvious “Shining a light on dark matter”!