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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New hope for vaccine against a devastating livestock disease
Audio long-read: How harmful are microplastics?
The 'zombie' fires that keep burning under snow-covered forests
Coronapod: The variant blamed for India's catastrophic second wave
The brain implant that turns thoughts into text
Coronapod: Waiving vaccine patents and coronavirus genome data disputes
Oldest African burial site uncovers Stone Age relationship with death
Coronapod special: The inequality at the heart of the pandemic
What fruit flies could teach scientists about brain imaging
Audio long-read: How drugmakers can be better prepared for the next pandemic
Coronapod: Kids and COVID vaccines
Meet the inflatable, origami-inspired structures
Coronapod: could COVID vaccines cause blood clots? Here's what the science says
The sanitation crisis making rural America ill
Coronapod: A whistle-blower’s quest to take politics out of coronavirus surveillance
Audio long-read: Rise of the robo-writers
Coronapod: How to define rare COVID vaccine side effects
Antimatter cooled with lasers for the first time
Coronapod: the Oxford-AstraZeneca COVID vaccine - what you need to know
Network of world's most accurate clocks paves way to redefine time
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