Researchers are discussing 2025 PN7, a small celestial body that's following a similar orbital path to our planet's without being gravitationally tied to Earth ...

That's because autumn officially begins tonight! The autumn equinox takes place at 19:20 BST Monday – marking the point when the sun appears to shine directly over the equator. This annual ...

The Earth stands alone in the solar system as a habitable world, as far as we know. But that doesn’t mean we don’t get visitors, most often in the form of (usually harmless) asteroids. Some even ...

Gauging the mass of a black hole is tricky, but astronomers have devised multiple methods to measure the heft of these galactic gluttons ...

Tampa, Florida—The emerging market for small geostationary satellite manufacturing is experiencing a divergence in vertical integration strategies, as companies reshape space-based communications ...