A new fuel system may change the way that travel to Mars is possible.

This month will usher in two separate conjunctions — one between the moon and a rarely-visible Mercury, and another between ...

Living in today's age of ambitious robotic exploration of Mars, with an eventual human mission to the red planet likely to ...

A picture taken recently by a Japanese company’s spacecraft shows how your interpretation of objective reality can be tested ...

A spectacular double planetary conjunction is set to grace the night skies in late June 2025, offering rare and vivid views ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

This includes studying the formation and evolution of planets, the moons and rings that orbit them, and other smaller bodies such as asteroids and comets. Earth has been degassing volatiles since ...

This solectric energy penetrates the whole solar system, and there is a constant adjustment of this force according to the configuration of the planets and moon. The sum is constant, the whole ...

Fossil fuels still energize most of the planet, so the transition away from them will take years, but it has begun, and Donald Trump can’t stop it. We can now start to see how the fossil-fuel ...