Have you downloaded a contact tracing app? If not, you’re in a huge majority. Most countries that have launched apps to alert users when they’ve come into contact with someone infected with COVID-19 have failed to get more than 20% of their populations to install the software. That’s a long way from the estimated 56% that a report published back during the first wave of COVID-19 said would help bring the pandemic to an end.

It’s too early to say that contact tracing apps won’t work but based on what we know about how their design, their popularity and how people respond to instructions to self-isolate, the signs aren’t looking good.

Landing a spacecraft on an asteroid is a major technological achievement. Monica Grady – part of the team that landed a probe on a comet in 2014 – explains the challenges involved. And closer to home, the increasing chances of a no-deal Brexit are threatening the UK’s ability to cope with pandemics.

Stephen Harris

Commissioning + Science Editor

Checking in. Danny Lawson/PA Wire/PA Images

Contact-tracing apps: there’s no evidence they’re helping stop COVID-19

Allison Gardner, Keele University

Download rates have been disappointing and people aren't following self-isolation warnings.

Artist’s concept of the OSIRIS REx spacecraft collecting material from Bennu. NASA/Goddard Space Flight Center

Asteroid Bennu: successful touchdown – but sample return mission has only just begun

Monica Grady, The Open University

Bennu will tell us about our own origins as much as about the origin of asteroid Bennu.

EU countries are working together to procure a lot of PPE. Shutterstock

A no-deal Brexit could damage the UK’s ability to cope with pandemics

Andrew Glencross, Aston University

The EU is becoming a key player in the global market for PPE and the UK could miss out if it doesn't strike a deal.

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