Sea levels are not always calculated accurately, according to a major comparative study by Wageningen University & Research (WUR) and Deltares in Nature. In some places, sea levels are up to a metre higher than previously thought. This means that millions more people are coming into the danger zone. What went wrong? Elevation modeler Maarten Pronk explains.

The departments involved at TU Delft do not wish to disclose which collaborations with Israeli partners have been identified. They only mention numbers. Nine months ago, the Executive Board decided to refrain from establishing new ties and to reassess existing ones. That review is ongoing, and as far as those involved are concerned, only general information will be released.

PhD candidates at TU Delft sometimes have to wait so long for their defense that their visas expire or job applications are jeopardized. A simplified PhD ceremony and the addition of an extra beadle — both negotiated by the Works Council — are expected to ease the pressure. And not a moment too soon, because the real wave of PhD defenses is still to come.

On Monday morning 9 February, trains between The Hague and Delft were cancelled and traffic lights were not working due to a power outage. Is this an isolated incident or a sign of an increasingly vulnerable electricity grid? Power grid professor Peter Palensky: “Overall, the infrastructure is improving.”

Humans will soon be heading back to the moon, but the launch of Artemis II, which was planned for this week, has been postponed until March due to technical problems. What makes this launch unique and why is launching so difficult? Five questions for Sebastien Welters from student rocket association DARE.