Mars does not have Earth’s kind of magnetic shield, so it has often been treated as the solar system’s more exposed world. It ...

The Psyche mission, on its way to study an asteroid of the same name, approached within 2,864 miles of the red planet on May ...

Have you seen the bright star in the west after sunset? It’s Venus — and it’s about to do something spectacular. On June 9-11, Earth’s sister planet will appear to tangle with Jupiter in the night sky ...