More from BBC Sky at Night

BBC Sky at Night5 min read
Surfing Spacetime With LISA
In September 2015, some of the most sensitive instruments ever built made a remarkable discovery: the first-ever detection of tiny ripples in space and time, known as gravitational waves. Created by a pair of black holes spiralling towards each other
BBC Sky at Night2 min read
A New Star In The Northern Crown
Look to the sky in the coming months and there could be what appears to be a bright new star. In reality, this is T Coronae Borealis (T CrB), a star that's usually dim but which jumps dramatically in brightness every 80 years to become visible to the
BBC Sky at Night1 min read
Dark Stars Could Leave Scars Across The Cosmos
The scars left behind by exploding ‘dark stars’ could allow astronomers to examine the invisible Universe, a new study has found. Dark matter is the invisible substance believed to suffuse the entire Universe – though as we can only detect it through

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