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Editors of EarthSky

Does wandering Jupiter account for our strange solar system?

Jupiter may have swept through the early solar system like a wrecking ball, destroying a first generation of inner planets before retreating into its current orbit.

EarthSky meets its first crowd-funding campaign goal in one day

Web users help support the popular science website, citing “the value and impact of science education,” “science and beauty” and “sharing the wonder” as reasons.

Most stars have planets in habitable zone

Researchers calculate that billions of stars in our Milky Way galaxy have 1-3 planets in the habitable zone, where there may be liquid water and life.

New California earthquake forecast

A new long-term earthquake forecast for California by the U.S. Geological Survey revises estimates for the chances of large earthquakes over the next several decades.

Underground ocean on Jupiter’s largest moon

An ocean below the surface of Jupiter's large moon Ganymede has more water than all earthly oceans, according to evidence from the Hubble Space Telescope.

Lack of snow forces Iditarod start north

Alaska’s famous Iditarod sled dog race traditionally runs from Anchorage to Nome. But this year, lack of snow forced a reroute and moved the kickoff 250 miles north.

Distant planet has four suns

Were it possible to see the skies from this world, the four parent stars would look like one small sun and two very bright stars visible in the daylight.

Mars lost ocean of water to space

About 4 billion years ago, a primitive ocean on Mars held more water than Earth's Arctic Ocean, say researchers, but Mars has lost 87 percent of it to space.

Why comets are like deep fried ice cream

Astronomers tinkering with ice and organics in the lab might have discovered why icy comets have hard, outer crusts.

Do pulses from seafloor volcanoes trigger climate swings?

Volcanoes on the ocean floor flare up on regular cycles - lasting from two weeks to 100,000 years. Do they help produce suddenly seesawing hot and cold periods?

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