Sea ice extent is at record, and near record, lows for this time of year in both polar regions, leaving the planet ...

Martian lake beds and deltas reveal the Red Planet’s watery past. But many puzzles remain, scientist Bruce Jakosky says.

If you’re trying to cheat death on Mercury, this is very promising, but the news gets even better. Mercury's Solar Day is ...

Researchers found increased meltwater and rain explain 60% of a decades-long mismatch between predicted and observed temperatures in the ocean around Antarctica.

The Arctic Ocean likely had the smallest winter ice cover in 47 years of satellite records this season, with just 5.53 ...

Arctic sea ice had its weakest winter buildup since record-keeping began 47 years ago. Scientists say it's a symptom of ...

Trump has refused to rule out using military or economic action to acquire the island, leading some analysts to warn that ...