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Planet News

How Long is a Day on Venus? Astronomers Make Their Best Measurement Yet

There's a problem with Venus. We don't know how fast it rotates. For a space-faring civilization like ours, that's a…

4 weeks ago

This Dried Up Riverbed Shows that Water Once Flowed on the Surface of Mars

From some viewpoints, Mars is kind of like a skeleton of Earth. We can see that it had volcanoes, oceans,…

1 month ago

Io’s Largest Volcano, Loki, Erupts Every 500 Days. Any Day Now, It’ll Erupt Again.

Jupiter's moon Io is in stark contrast to the other three Galilean moons. While Callisto, Ganymede, and Europa all appear…

2 months ago

Whoa. Lakes on Titan Might be the Craters from Massive Underground Explosions

The Cassini spacecraft ended its mission to Saturn and its moons two years ago when it was sent plunging into…

2 months ago

Mercury has Magnetic Poles that Drift Like Earth’s

Earth's magnetic poles drift over time. This is something that every airplane pilot or navigator knows. They have to account…

2 months ago

A Bunch of New Names for Pluto’s Surface Features Were Just Approved

Pluto is getting some new names. In the past, prior to the New Horizons mission, there wasn't much to name.…

3 months ago

There are Ring-Like Formations Around the Lakes on Titan

Some lakes on Titan have ring-like shapes around them, and scientists are trying to find out how they formed. Understanding…

4 months ago

Martian Clouds Might Start with Meteor Trails Through the Atmosphere

On Earth, clouds form when enough droplets of water condense out of the air. And those droplets require a tiny…

5 months ago

Earth has a Water Cycle. Mars has a Dust Cycle

To say there are some myths circulating about Martian dust storms would be an understatement. Mars is known for its…

5 months ago

Ceres is a Strange Place, Including a Volcanic Peak 4,000 Meters High Made From Bubbling Salt Water, Mud and Rock

Ceres, at almost 1,000 km (620 miles) in diameter, is the largest body in the asteroid belt. Between 2015 and…

5 months ago