China’s megaconstellation launches spark debris concerns; commercial space expands; Lightyear Explorer raises funds; key ...

The planet orbits its host star in just 30.5 hours, losing a mass of material roughly equal to Mount Everest each time ...

To mark the 35th anniversary of the Hubble Space Telescope, Space.com looks at some of the most scientifically significant images that have emerged from the observatory's lens.

Some experts suspect that a series of aviation incidents traces back to Russian aggressors. The sophistication only rivals ...