The stealthy startup plans to use a network of satellites to harvest sunlight and send it to Earth using infrared lasers.

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

Neutrinos are one of the most mysterious particles in the universe, often called "ghost particles" because they rarely ...

With major eclipses, brilliant supermoons, and lineups of five or more planets, 2026 offers something awe-inspiring in every season. Here’s what to watch for.

The bright binary star system V Sagittae will flare up multiple times before finally going supernova within the next 100 ...

Scientists have long believed that the Moon was formed by a massive object crashing into the Earth. But what was that thing ...

New images taken by the Hubble Space Telescope and a Jupiter-bound mission showcase interstellar comet 3I/ATLAS ahead of its ...

Beyond the local interstellar clouds and their wispy clumps of hydrogen and helium atoms in the form of gas and dust, the ...

Earth has the perfect combination of a livable atmosphere and a protective magnetic field that prevents the Sun's harmful radiation and radioactive solar winds from damaging us, allowing us to live on ...

New research shows how the star's powerful outbursts could help scientists assess which worlds might support life.