In this episode:
To protect themselves against viral infection, bacteria often use CRISPR-Cas systems to identify and destroy an invading virus’s genetic material. But viruses aren’t helpless and can deploy countermeasures, known as anti-CRISPRs, to neutralise host defences. This week, a team describe a new kind of anti-CRISPR system, based on RNA, which protects viruses by mimicking part of the CRISPR-Cas system. The researchers hope that this discovery could have future biotechnology applications, including making CRISPR-Cas genome editing more precise.
Research article: Camara-Wilpert et al.
Carved inscriptions suggest a queen named Thyra was the most powerful person in Viking-age Denmark, and the discovery of a puffed-up exoplanet that has just 1.5% the density of Earth.
Research Highlight: Runes on Viking stones speak to an ancient queen’s power
Research Highlight: ‘Super-puff’ planet is one of the fluffiest worlds ever found
Climate-change induced melting of Greenland’s vast ice sheet would contribute to 7m of sea level rise. But it has been difficult to calculate how the ice sheet will respond to future warming. This week, a team suggest that abrupt ice loss is likely if the global mean temperature is between 1.7 °C and 2.3 °C above pre-industrial levels. Keeping temperature rise below 1.5 °C could mitigate ice loss, if done within a few centuries, but even a short overshoot of the estimated threshold could lead to several metres of sea-level rise.
Research article: Bochow et al.
A massive reproducibility exercise reveals over 200 ecologists get wildly-diverging results from the same data, and how melting simulated lunar-dust with lasers could help pave the Moon.
Nature News: Reproducibility trial: 246 biologists get different results from same data sets
Nature News: How to build Moon roads using focused beams of sunlight
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‘Tree islands’ give oil-palm plantation a biodiversity boost
JWST shows an ancient galaxy in stunning spectroscopic detail
Nature's Take: Can Registered Reports help tackle publication bias?
‘Pangenome’ aims to capture the breadth of human diversity
Menopause and women’s health: why science needs to catch up
Audio long read: Conquering Alzheimer’s — a look at the therapies of the future
How Rosalind Franklin’s story was rewritten
A smarter way to melt down plastics?
How to battle misinformation with Sander van der Linden
Octopuses hunt by 'tasting' with their suckers
Giant black-hole pair from the early Universe gives clues to how galaxies form
Audio long read: What Turkey’s earthquake tells us about the science of seismic forecasting
Bacterial ‘syringes’ could inject drugs directly into human cells
How to make driverless cars safer — expose them to lots of dangerous drivers
How to build a virus-proof cell
How the Australian wildfires devastated the ozone layer
How an increased heart rate could induce anxiety in mice
Nature's Take: How Twitter's changes could affect science
Audio long read: How your first brush with COVID warps your immunity
A twisting microscope that could unlock the secrets of 2D materials
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