p.659

Drug trials need more participants. Research shows the potential benefits of changing the criteria used to determine who can enrol.

doi: 10.1038/d41586-021-01099-4

p.660

The pandemic has given scientists a more prominent voice in society. They need to use it to push for better health through equality.

doi: 10.1038/d41586-021-01100-0

p.667

The virus is spreading faster than ever before in India despite previous high infection rates in megacities, which should have conferred some protection.

doi: 10.1038/d41586-021-01059-y

p.668

NASA’s Ingenuity helicopter successfully hovered for 40 seconds in Mars’s thin atmosphere.

doi: 10.1038/d41586-021-00909-z

p.670

doi: 10.1038/d41586-021-01061-4

p.672

University of Cape Town faces losing ‘irreplaceable’ historical material on anthropology, ecology and politics.

doi: 10.1038/d41586-021-01045-4

p.673

Researchers say the commitment to roughly halve emissions is a good start to slowing climate change, but fear it still isn’t enough.

doi: 10.1038/d41586-021-01071-2

p.674

doi: 10.1038/d41586-021-00943-x

p.682

doi: 10.1038/d41586-021-01086-9

p.687

Magnesium atoms typically lose two electrons to form chemical compounds. A reactive complex has finally been made in which magnesium keeps all of its electrons, and which can be thought of as a soluble form of the metal.

doi: 10.1038/d41586-021-01014-x

p.688

Microorganisms living in hydrothermal vents that emit carbon dioxide gas provide a striking example of metabolic finesse. This pathway sheds light on microbial ecology in extreme environments and offers clues to early life on Earth.

doi: 10.1038/d41586-021-00977-1

p.690

The molecular mechanism governing the destruction of key cell-cycle proteins, D-type cyclins, has been elucidated. This mechanism might underlie the lack of response of some human tumours to an inhibitor treatment.

doi: 10.1038/d41586-021-00889-0

p.692

A study of melting in the mantle under northern Canada more than one billion years ago shows that the oldest blocks of continent not only break apart but can also be repaired by the gluing action of major melting episodes.

doi: 10.1038/d41586-021-01087-8

p.695

doi: 10.1038/s41586-021-03307-7

p.704

doi: 10.1038/s41586-021-03394-6

p.708

doi: 10.1038/s41586-021-03443-0

p.712

doi: 10.1038/s41586-021-03428-z

p.717

doi: 10.1038/s41586-021-03401-w

p.722

doi: 10.1038/s41586-021-03432-3

p.726

doi: 10.1038/s41586-021-03436-z

p.732

doi: 10.1038/s41586-021-03395-5

p.737

doi: 10.1038/s41586-021-03451-0

p.747

doi: 10.1038/s41586-020-03040-7

p.756

doi: 10.1038/s41586-020-03039-0

p.763

doi: 10.1038/s41586-021-03358-w

p.768

doi: 10.1038/s41586-021-03425-2

p.773

doi: 10.1038/s41586-021-03320-w

p.778

doi: 10.1038/s41586-021-03350-4

p.784

doi: 10.1038/s41586-021-03456-9

p.789

doi: 10.1038/s41586-021-03445-y

p.794

doi: 10.1038/s41586-021-03474-7

p.799

doi: 10.1038/s41586-021-03422-5