Daily briefing: Animals without brains sleep too - hinting at why we sleep at all

"The centre of a young galaxy cluster is hotter than the Sun - way hotter than predicted by current theories of how such clusters formed. Astronomers peered into deep space (and thus far back into the early Universe) using the ALMA telescope in Chile to observe the cluster, SPT2349-56, about 1.4 billion years after the big bang. "From our conservative calculation, it is 5 to 10 times hotter than expected based on simulations," says study co-author Dazhi Zhou. "That is very surprising because this kind of hot gas was expected to exist only billions of years later.""

"Lawmakers in the United States have put forward a slate of bills that would keep funding for some major science agencies close to current levels, declining proposals by President Donald Trump to slash science budgets. The three bills, which cover the National Science Foundation, NASA and Department of Energy research programmes, must still be approved by Congress and signed into law by the president. Bills covering other areas, such as the health department that funds the National Institutes of Health, are still to come."

"Even when a person's tumour is successfully treated, it doesn't necessarily mean they're cancer-free for life. Some cancer cells can go dormant - hidden from the immune system and not actively dividing - and reawaken later to form new tumours. Over the past decade, a flurry of efforts have attempted to understand what induces dormancy and how to stop it - questions that have attracted more and more researchers to the field."

Jellyfish enter sleep-like states with behaviors resembling human sleep despite lacking a brain. US lawmakers proposed bills to maintain near-current funding for major science agencies, pushing back on presidential proposals to cut budgets; the measures cover the National Science Foundation, NASA and Department of Energy research programmes and still require Congressional approval and the president's signature. Some cancer cells can become dormant, evade the immune system and later reawaken to form new tumours, attracting research into triggers and prevention of dormancy. Astronomers using ALMA observed galaxy cluster SPT2349-56 about 1.4 billion years after the big bang and found its centre five to ten times hotter than simulations predicted.

Read at Nature