A pipe dream or a scam to enrich himself further? Here's why scientists are skeptical of Elon Musk's dream for humans to colonize Mars.

No matter how many missions to Mars she takes part in, the sheer joy of unearthing discoveries about the red planet never gets old for Mariek Schmidt.

Here’s what you should know when you go outside to see for yourself: Yes, the planets are indeed lined up across our sky. No, ...

NASA researchers have identified geological structures on Mars that are unlike anything found on Earth. From spider-like ...

A Month of Bright Planets Venus blazes at its brightest for the year after sunset, then Mars and Jupiter to rule the night ...

Here's when and how to watch the next full moon and February's rare planetary parade, starting with the shiny bright planet of Venus.

Now, researchers have connected 49 seismic events to impact craters, proving that meteorite strikes leave distinct seismic ...

Boom!

These two next weeks offer all but one of the planets in lovely view at nightfall. Fred Schaaf goes step by step through the ...

On Feb. 6, 1954, during halftime at a home basketball game against the University of Wyoming, former Colorado State ...

Venus, Jupiter and Mars will dazzle in the night sky this month, giving stargazers of all levels a great show. The three ...

Using artificial intelligence, scientists have discovered a crater from a meteoroid that they say shook material as deep as ...