The Hranice Abyss — or "Hranická propast," in Czech — is the deepest known freshwater cave in the world. Geologists think it ...

Six earthquakes were recorded at the Mount Adams volcano in September — a significant increase on the normal rate of one ...

The sun has unleashed the most powerful solar flare since 2017, just days after it spat out another monster explosion. Both ...

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The newfound wreck could help maritime archaeologists better understand how 20th-century warships were designed.

A gold coin unearthed at the site of a medieval fortress in Bulgaria indicates the wealth of the people who lived there ...

On Oct. 2, a partial "ring of fire" solar eclipse was visible from the remote island of Rapa Nui, also known as Easter Island ...

The Thule Inuit people and Norse both hunted walrus in the High Arctic in the 13th century, according to a new study.

Images captured by Curiosity's onboard cameras show several large tears in the tire of one of the rover's wheels. However, the damage does not appear to be slowing the roaming robot down.

A new physical model suggests meltwater from thawing permafrost on Russia's Yamal Peninsula can unlock methane sources at ...

The U.S. Federal Aviation Administration is investigating the uncontrolled reentry of part of a Falcon 9 rocket that ...

Save $60 and get the Celestron TrailSeeker 8x42 binoculars for $239.95 at Amazon — but you'll have to be quick as we've seen ...