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Editors of EarthSky

Where lightning flashes most

According to satellite observations, more lightning happens over land than over the oceans, and more often closer to the equator. Check out this map.

Swirling mystery of Jupiter’s Great Red Spot

The Great Red Spot has been swirling wildly over Jupiter for the past 150 years, but scientists still aren't sure what causes the gigantic storm's reddish hues.

Is this the largest feature in the universe?

Astronomers have found what appears to be the largest feature in the universe: a ring of gamma ray bursts - and hence galaxies - 5 billion light years across.

El Niño conditions growing stronger

El Niño has strengthened in the past several months. Will this El Niño rival the event of 1997–98?

Tracking an oddball group of near-Earth asteroids

Astronomers have traced some mysterious near-Earth asteroids back to their likely source.

A third of Milky Way stars have changed orbit

Astronomers have created a new map of the Milky Way that shows that about 30 percent of the stars have traveled a long way from the orbits they were born with.

US deserts wet until 8,200 years ago

Research suggests that around 8,200 years ago, the climate of the American West began transitioning from a lush landscape to the desert terrain we know today.

California lacking a year’s worth of rain

Drought and more drought in California, whose accumulated rain debt now equals an average year's precipitation, according to a new study.

Exciting news! Astronomical League and EarthSky join forces

Popular astronomy website and nation’s largest federation of astronomy clubs have joined forces to bring the night sky's wonder, beauty, and mystery to the public.

Video: The science of dogs

The newest video from AsapSCIENCE is for dog lovers. That is, for everyone!