About 4.5 billion years ago, Earth had a violent neighbor. A young, still-forming planet named Theia slammed into our world with enough force to melt vast portions of its mantle and scatter a huge ...

Today, Nov. 22, 2025, the moon is 2 days old and is in the Waxing Crescent phase of its lunar cycle. It is 5% illuminated.

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.

Space has a knack for bending our sense of scale. The Moon feels close enough to touch—after all, we see its craters with ...

The probe flew 3,438 kilometres above Earth during its swing. It moved closer than several high-orbit satellites circling the ...

Key PointsAbout 4.5 billion years ago, a dramatic event transformed the young Earth when a large protoplanet known as Theia struck our planet ...

Fleet Space’s Matt Pearson explains how the “space pirate” company designs technology for exploration and mining on the Moon ...

Min Read November marks 25 years of human presence aboard the International Space Station, a testament to international ...

The Cold Supermoon 2025 is the last full moon of the year, shining brightest on December 4. Learn why it’s called the Cold ...

The outer planets of the Solar System are swarmed by ice-wrapped moons. Some of these, such as Saturn’s moon Enceladus, are ...

Moss spores survived nine months outside the space station, revealing surprising strength and new clues about life in space.

Learn when fall begins with the autumnal equinox. Get upcoming dates, Harvest Moon info, and understand meteorological vs ...