The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Staring up at the night sky, you might see thousands of stars sprinkled above the horizon. It feels as though you can see so ...

NASA has shared details of what to look out for in the night sky this month, with the moon appearing alongside a parade of planets.

NASA’s Juno discovered a massive volcanic eruption on Io, hotter than anything seen before. This event, powered by Jupiter’s ...

Sending a spacecraft to a near-Earth asteroid, gathering dust and rock from its surface, and returning the rare cache to ...

After decades of study, scientists sound genuinely optimistic about the possibility of detecting primordial black holes, which might explain dark matter.

NASA has found something on Uranus and Neptune. The ice giants of the solar system have long been enigmas for science.

Mauna Kea When you think of the tallest mountains, instinctively, Mount Everest comes to mind. But here's a shocker: Mauna ...

Welcome to this month’s edition of “What’s up in the sky?” February has a nice lineup of planets and some eye-catching ...

SPHEREx is slated to launch Feb. 27 on a SpaceX rocket. It is meant to map the entire night sky in infrared — something even ...

The UR-100V 'Hunter Green' combines Urwerk's signature satellite display with new materials and finishes. Urwerk's choice of ...