DiscoveriesSep 23, 20267 min

Why we keep sending rovers to Mars

Ancient river deltas, layered rock, and the question of past life keep Mars at the top of the exploration agenda.

Sample article — placeholder editorial content for COSMOS Phase 1.

Orbital and surface observations show that Mars once had liquid water on its surface, carving channels and depositing sediments in crater lakes.

Rovers act as mobile geology labs, drilling and analysing rocks that preserve a record of the planet’s ancient environment.

Each mission builds on the last, refining where to look for signs that Mars may once have been habitable.

TechnologyOct 28, 20267 min

Light from the first galaxies has been stretched into the infrared by cosmic expansion. Here is why that matters for how we build observatories.

Space ExplorationOct 21, 20265 min

Launches are timed to the second for a reason. Orbital mechanics, target trajectories, and weather all decide when a rocket can fly.

MissionsOct 14, 20266 min

Extravehicular activity is among the most demanding tasks in human spaceflight. A look at the preparation behind every hour outside.

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