Two monster black holes just collided — it’s so massive, it shouldn’t exist

The LIGO-Virgo-KAGRA (LVK) Collaboration has detected the merger of the most massive black holes ever observed with gravitational waves, using the US National Science Foundation-funded (NSF) LIGO Hanford and Livingston Observatories. The merger produced a final black hole more than 225 times the mass of our Sun. The signal, designated GW231123, was observed during the…

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Palm House set for major renovation

Alison Francis Senior Science Journalist RBG Kew The renovation will begin in 2027 and will take an estimated five years It’s a makeover on a massive scale – it involves moving 1,300 plants, replacing 16,000 panes of glass and cleaning up hundreds of tonnes of iron. This is the ambitious £50m plan to renovate the…

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Gravitational shockwave: LIGO catches a 225-solar-mass black-hole smash-up

The LIGO-Virgo-KAGRA (LVK) Collaboration has detected the merger of the most massive black holes ever observed with gravitational waves using the US National Science Foundation (NSF)-funded LIGO observatories. The powerful merger produced a final black hole approximately 225 times the mass of our Sun. The signal, designated GW231123, was detected during the fourth observing run…

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