This shared virtual-reality experience takes groups of up to six to stars, space telescopes and a black hole. It was developed with the Smithsonian Astrophysical Observatory. The VR journey lasts around 40 minutes; allow an hour including briefing and equipment. Minimum age is six, with nine and over recommended; children aged six to 14 must be accompanied. The indoor experience is available in German and English. Arrive 15 minutes before the booked slot. Tickets currently extend through 10 January.