Comment in 2024

In August 2024, the International Astronomical Union General Assembly was held for the first time on the African continent, as a fully hybrid and open-access conference. This opportunity to approach such a traditional and historical event from a new perspective encouraged a spirit of innovation enabled by emerging technologies.

The XXXII IAU General Assembly, held for the first time on the African continent from 6–15 August 2024, marked a historic milestone in the global astronomy community. Driven by a bold vision, the event highlighted Africa's growing scientific capacity, and embodied the African spirit of Ubuntu, emphasizing accessibility, impact, and sustainability.

Humans first reached Mars in 1971, initiating the record of human activity on the Red Planet. As planetary scientists plan for future planetary protection procedures for Mars, they should also consider the developing archaeological record on one of our nearest planets.

The sample numbers required to achieve a 95% confidence, with high precision, that Martian environments are lifeless can exceed many hundreds. This might not be achievable by sample return only and might require human explorers.

In hyperarid environments, life can obtain water through salts that draw moisture from the atmosphere. These salts, then, should be a focus of searches for life on Mars. The experiments performed by NASA’s Viking landers may have accidentally killed Martian life by applying too much water.

A survey of astronomy and geophysics professionals has revealed prevalent bullying and harassment within the sector, with women and marginalized groups most likely to suffer. It is time for the community to face up to the issue and discuss ways of tackling it.

In response to concerns raised by the Navajo Nation on treating the Moon as a grave, NASA has a unique opportunity to advance the conversation with Indigenous communities regarding how we interact with space environments, and who gets to decide.