Physics research drives technological innovation, from medical imaging to data processing, write Dr Phil Bull and Prof Chris Clarkson; plus letters from Tim Gershon and Vincenzo Vagnoni, and Prof Paul Howarth

Your article (UK ‘could lose generation of scientists’ with cuts to projects and research facilities, 6 February) is right to highlight the serious consequences of proposed 30% funding cuts on the next generation of physics and astronomy researchers. The proposals also risk a generational destruction of the country’s ability to produce skilled graduates, retain specialist knowledge, and support physical science in industrial and educational settings.

This comes against a backdrop of wider threats to university finances, from rising costs to declining international student numbers. An estimated one in four UK physics departments are already at risk of closure, and recent cuts and delays to Science and Technology Facilities Council (STFC) grants have further depleted finances and will result in the loss of some highly skilled technical staff.

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© Photograph: Murdo MacLeod/The Guardian

© Photograph: Murdo MacLeod/The Guardian

© Photograph: Murdo MacLeod/The Guardian

Back in 2022, astronomers were puzzled by a so-called “tidal disruption event” (TDE), dubbed AT2018hyz, that had faded when it was first noticed three years earlier, only to unexpectedly reanimate and burp out extremely bright radio waves. University of Oregon astrophysicist Yvette Cendes, a co-author of that 2022 paper, dubbed the black hole “Jetty McJetface” (a nod to the 2016 online British competition to name a research vessel Boaty McBoatface).

Astronomers have continued to monitor it ever since. Far from fading again, the TDE has grown 50 times brighter, and that brightness continues to increase. The black hole's energy emission might not peak until 2027, according to a new paper published in the Astrophysical Journal.

As we've previously discussed, it’s a popular misconception that black holes behave like cosmic vacuum cleaners, ravenously sucking up any matter in their surroundings. In reality, only stuff that passes beyond the event horizon—including light—is swallowed up and can’t escape, although black holes are also messy eaters. That means that part of an object’s matter is actually ejected out in a powerful jet.

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A professor at the University of California, Santa Cruz, he was a key contributor to a landmark paper that laid out how the universe came to look like it does today.

Trump Media plans to merge with a company developing nuclear fusion technology, putting the president’s financial interests in competition with other energy companies over which his administration holds sway.

© Pete Marovich for The New York Times