Astronomers have uncovered a distant planetary system that flips a long-standing rule of planet formation on its head. Around the small red dwarf star LHS 1903, scientists expected to find rocky ...

A small red dwarf star in the Milky Way has drawn attention after astronomers mapped four closely orbiting planets around it. The system, known as LHS.

Low-Earth orbit is more crowded—and fragile—than it looks. Satellites constantly weave past each other, burning fuel and making dozens of evasive maneuvers every year just to stay safe. A major solar ...

What happens at the end of our world? Scientists have found an Earth-like planet orbiting a star 4,000 light years away from the solar system that may reveal our planet’s ultimate fate. The rocky ...

A rare disruption like a major solar storm could overwhelm Earth's satellite system and trigger a debris-producing disaster ...

Researchers estimate that the planet has about a 50% chance of being in its star's Hoble zone.

The newborn planetary system appears to be emerging 1,300 light-years away around a baby star known as HOPS-315. Planet-forming materials were first identified using NASA's James Webb Space Telescope.

China's planned Xihe-2 solar probe — set to launch between 2028 and 2029 and become the world's first spacecraft stationed at the Sun-Earth L5 point — will enable detection of solar active regions 4-5 ...