More from All About Space

All About Space2 min read
Treasures Of The Serpent, Serpent-bearer And Hero
Although there aren’t many hours of darkness in which to observe the night sky in late spring, if you plan your viewing there’s a good chance you will be rewarded. This time of year is especially good for globular star clusters. These objects, as th
All About Space5 min read
Unistellar Evscope 2
Cost: £3,999 / $4,899 From: Unistellar Optical design: Reflector Aperture: 4.5 inches (114 millimetres) Focal length: 17.7 inches (450 millimetres) Focal ratio: f/3.9 Highest useful magnification: 50x optical, 150x digital Total kit weight: Nine kilo
All About Space1 min read
What Happens When Black Holes Collide?
Colliding black holes emit a powerful burst of gravitational waves – ripples in the geometry of space-time. Black holes are disconnected regions of the universe defined by an invisible one-way membrane called the event horizon: you can enter, but nev

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