Latest headlines from around the world.

When you use GPS, you rely on Einstein’s relativity laws

New nasal spray shows promise fighting memory loss and brain inflammation

When Persian served in Bengal as the language of power and culture

73 landings to a permanent home: Nasa unveils ‘Moon Base User’s Guide’

Four-planet parade: How and when to watch the rare alignment in India

Moon’s oldest craters hiding 3-billion-year-old secret that could fuel future expeditions

Are we talking less? Study reveals sharp drop in use of words

Artemis II astronauts complete milestone voyage around the moon

Artemis II splashdown: Orion comes back, begins a new era in human space travel