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Ceres Looks Seriously Young

Asteroids should not be so active. This one was, and is.

Did Earth Get Its Water from Meteor Squirt Guns?

You can't just fire bullets at pumice and claim that Earth got its oceans that way.

Dawn of a Young Ceres

The largest asteroid has a problem: she's too young to get a date.

Why Astronomers Hammer Planets

Secular planetary scientists have a skeleton key that unlocks any planetary mystery: the BFH.

Pounding Headaches for Solar System Dates

It's hard to tell when things crashed into each other.

Seriously, Ceres and Comets Look Surprising

Here are surprises found at asteroid Ceres and Comet 67P by spacecraft arriving there this year.

Solar System Puzzles Needing Explanation

Here are some of the latest observations that are baffling planetary scientists.

Solar System Reversals

The planets keep going around, but theories about them often stop and go backward or sideways. When nothing else works, send in the impactors!

Another Geyser World Erupts: Asteroid Ceres

The asteroid Ceres is popping off with water vapor on two sides. What's that world coming to? One thing is sure: DAWN is coming to it.

Planets and Moons Beneath the Surface

Can science peel back the surfaces of objects to see what's underneath? Can they go under the observations to find the explanations?

New Worlds

Members of our solar system that were little more than points of light for decades or centuries have now become familiar family members, seen up close and personal by spacecraft. Here are introductions to three worlds that are no longer mere names in a catalog. Even the names of members in this trio may be unfamiliar to some. They’re worth getting to know.

Planetary Eruptions

Eruptions can come in two types: literal and figurative. Some planetary bodies are literally erupting. Others are causing figurative eruptions in theories. Here are some recent news stories about planets, moons, comets and other objects circling our sun and other stars. There hasn’t been much news from Mercury or Venus this month, so we’ll start on the home planet and work outward.
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