It was a race against the rising sun as astrophotographer Josh Dury captured a fleeting cosmic moment before dawn’s light ...

Following the much-ballyhooed “planet parade” this winter, the planets have been gradually dipping below the horizon, ...

Noctilucent clouds, Earth's highest clouds, shine blue in the twilight sky from late May to August in the northern hemisphere ...

The photo was captured at 4:27 am local time on March 1, 2025, the 1,433rd Martian day, or sol, of Perseverance being on Mars ...