As scientists get closer to putting humans on Mars, the need to understand why clocks tick faster on the red planet is more ...

Calls for the US to land astronauts back on the moon before China have been increasingly loud and frequent. But it all hinges on SpaceX’s Starship.

Reflect Orbital has already millions in funding, but scientists say sunlight beamed at night will be devastating for ...

China laser hits the Moon in daylight at 130,000 km, enabling 24/7 lunar navigation, precise tracking, and a future-ready lunar GPS network.

Evidence points to a long-lost ocean beneath Ariel’s icy crust. Tides and orbit shifts may have cracked its surface billions of years ago. Growing evidence indicates that a deep ocean may lie hidden ...

Sir James Jeans, one of the world’s top mathematicians and an influential physicist and astronomer at the time, advanced his tidal hypothesis of planet formation in 1916. According to this theory, ...

Ancient Greek astronomer Aristarchus was the first who presented the heliocentric system, maintaining that the Earth revolves around the Sun.

Astronomers had long suspected that certain quasars—those brilliant, otherworldly light sources fueled by supermassive black ...

SpaceX will have the chance on Monday to show that Starship's successful August flight, the first to complete all its primary mission goals, was no fluke.

Astronomers have for the first time spotted two black holes two black holes circling each other locked in a cosmic dance.

When Earth is opposite Mars from the sun, it will appear full because you’re looking directly on the daylit side. But ...

Artemis astronauts may walk across the Moon’s deepest story - rock blasted from a 4.3-billion-year-old impact that still ...