NEW YORK (AP) — Six planets are linking up in the sky at the end of February, and most will be visible to the naked eye. It’s ...

When and where to watch rare planetary parade without a telescope this week - The parade should be visible over the weekend ...

A collapsed lava tube detected in 30-year-old radar data from Venus may be part of a much wider network of underground caves.

During the "planetary parade," six planets will appear to align in the evening sky, according to NASA.

If you think auroras on Earth are a strange and mesmerizing sight, that's nothing like what occurs on the perplexing world of Uranus.

NASA's Perseverance rover can now pinpoint its exact location on Mars without help from Earth, paving the way for longer, ...

Venus used to be pitched as an ocean world or a jungle twin of Earth—because nobody could see through the clouds. Then one flyby shattered the fantasy: scorching ground heat (over 400°C), no ...