Sizzling Summer Heat Breaks Records Across US By Andrea Mustain Summer temperatures could be warmer than average across much of country this year.
Iceland Offers Rare Glimpse of Tectonic Meeting Place By Andrea Mustain Scientists got a glimpse of a mid-ocean ridge without taking a dive to the seafloor.
What's Behind This Week's Extreme Heat By Andrea Mustain On the first day of summer, heat advisories have been issued up and down the East Coast.
US Monsoon Season Set to Make Annual Debut By Andrea Mustain The rainy season is the result of a change in the prevailing wind direction.
Soap Bubbles Shed Light on Paths of Hurricanes By Andrea Mustain Research used surprising source to develop a law to predict a hurricane's movement.
Stunning Map Shows Tornadoes' Historic Marks By Andrea Mustain The tornado-track map reveals that the U.S. is a hot-spot for twisters.
Videos Show Rare Tornado Striking Venice By Andrea Mustain Italy isn't Tornado Alley, but twisters can happen anywhere the conditions are right.
China Sub Set to Dive to Record-Breaking Depths By Andrea Mustain The attempt marks a game-changer for state-sponsored deep-sea exploration.
No Tornado Deaths in May: First Time Since 2005 By Andrea Mustain The month likely saw the lowest number of tornadoes since record-keeping began.
Venus Transit Inspires Dazzling Film With Surprising Star By Andrea Mustain Coral is far more charismatic than many may have guessed.
Transit of Venus to be Watched by Scientists Around Globe By Andrea Mustain Modern scientists are studying the transit around the world like their 18th century predecessors did.
Why This Tornado Season Has Been a Mild One By Andrea Mustain It may seem like a snooze, but it started with a bang.
Rare & Secretive Striped Rabbit Caught on Camera By Andrea Mustain These shy animals have almost never been captured on film.
'Normal' 2012 Hurricane Season Predicted By Andrea Mustain But nobody is off the hook and officials urge preparedness.
Earthquake Magnitude: Just How Big Was the Biggest Earthquake? By Andrea Mustain A visual aid makes this exponential scale a lot clearer.
Why Italy's Earthquake Was Weird By Andrea Mustain This area hadn't seen a strong quake in centuries.
Elusive 'Asian Unicorn' Faces Extinction By Andrea Mustain These secretive creatures were discovered only 20 years ago.
Hot Summer Projected for Much of US By Andrea Mustain No relief in sight for drought-stricken areas of the country.
Newly Discovered Seafloor 'Chimneys' Teem With Life By Andrea Mustain One chimney is as tall as a seven-story building.
First Images of Antarctic Volcano's Innards Revealed By Andrea Mustain Volcano's own gas bubbles reveal underground plumbing.
Antarctica from Above: Watch the Birth of an Iceberg By Andrea Mustain NASA scientists captured stunning footage during flights over the ice.
Rare Twin Waterspouts Caught on Camera By Andrea Mustain One twister moved over land and caused damage.
How on Earth? The Science Behind Earthquake Warnings By Andrea Mustain Authorities can sound the alarm seconds to minutes before shaking strikes.