A major step toward launch day is complete as NASA's Artemis II astronauts ran through a countdown demonstration test.

Such "countdown demonstration tests" have traditionally taken place shortly before launch with the rocket and crew ship ...

The four astronauts preparing to fly around the Moon on Artemis II have now practiced their biggest moment short of launch ...

NASA has taken another significant step toward returning humans to the Moon. On December 20, 2025, the Artemis II crew and ...

I/ATLAS comet is the 3rd-ever object discovered that originated from outside our solar system. It's not a threat, approaches ...

If you thought 2025 was an exciting year for spaceflight, just wait until 2026. Here's a look at six missions that could define the year.

The interstellar comet 3I/ATLAS made its closest approach to Earth today (Dec. 19, 2025). Here's the latest news you need to ...

Interstellar comet 3I/ATLAS made its closest approach to Earth early on Friday, Dec. 19. While it didn't come close enough to ...

After stage separation, the Falcon 9 rocket's first-stage booster will descend for landing atop the SpaceX drone ship A ...

Country music's most popular video countdown show is ending. CMT's Hot 20 Countdown is ceasing production after more than a decade on television. The decision to end the show is part of massive ...