Surprised astronomers just discovered a world that blurs the line between planet and stellar remnant, hiding in a system ...

A new dataset from Lawrence Livermore National Laboratory maps one million cis-lunar orbits, highlighting orbital stability challenges, space domain awareness needs, and planning requirements for Moon ...

Is there a full moon tonight? Here's when to watch January's special wolf moon - a supermoon that will shine for days amid ...

NASA’s Europa Clipper spacecraft has recorded important new observations of the interstellar comet 3I/ATLAS using its Southwest Research Institute-led Ultraviolet Spectrograph (UVS). In July, 3I/ATLAS ...

Every January, Earth reaches its closest point to the Sun, known as perihelion. Yet, it’s winter in the Northern Hemisphere.

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

An astronaut on the ISS photographed a "lunar halo" over the Indian Ocean, revealing ice and rare optical phenomena from ...

Space debris – the collection of defunct human-made objects in Earth's orbit – is already affecting space agencies, companies ...

Space is always inspiring and 2025 was no exception, with finding Betelgeuse’s buddy, debuting a prolific survey telescope ...

While the solstice marks the shortest day of the year, the amount of daylight we gain in the first week afterward is ...

Even though the shortest day of the year is behind us, the sunrise in most of the U.S. will keep getting later and later for a couple of weeks.

Hidden star found orbiting a bloated red giant, Pi1 Gruis, offering a rare glimpse into how close companions shape dying ...