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NYC's air quality ranked worst of any major city on Wednesday. With climate change, will it happen again?
By Rebecca Sohn published
New York City's normally good air quality rating recently plummeted to the worst of any major city in the world, as wildfire smoke drifted over the city from Canada.

Why don't hurricanes form at the equator?
By Charles Q. Choi published
Here's why hurricanes, also known as tropical cyclones and typhoons, don't form at the equator and why it would be rare for them to cross it.

Eerie ring of red light flashes like a massive UFO above Italy. What was it?
By Harry Baker published
An enormous red halo of light flashed in the night sky above Italy before disappearing within milliseconds. It was likely caused by an electromagnetic pulse from a nearby thunderstorm.

'Wedge tornado' in Mississippi is the deadliest in more than 50 years
By Sascha Pare published
A devastating, nearly mile-wide "wedge tornado" has killed at least 26 people and battered Mississippi with golf ball-size hail and winds up to 200 mph.

Gigantic 'solar tornado' taller than 14 Earths raged for 3 days. What caused it?
By Harry Baker published
A massive solar tornado recently towered over the sun's north pole for three days. The plasma twister was created by a rapidly rotating magnetic field.

Deadly cyclone 'Freddy' may be the longest-lived and most energetic storm ever recorded
By Harry Baker published
Cyclone Freddy, which is finally dissipating after battering Southeast Africa, has crossed the entire Indian Ocean and made landfall three separate times.

How accurate are Punxsutawney Phil's Groundhog Day forecasts?
By Live Science Staff published
The rodent has been predicting the start of spring since 1887. But how good is Phil at his prognostications?

Ultra-rare 'rainbow clouds' light up the Arctic Circle like auroras in stunning new photos
By Harry Baker published
Rare clouds that give off bright, multi-colored light like an aurora were recently spotted at multiple locations in the Arctic. But what causes them?
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