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‘Super Earth’ really may be hiding at the edge of our solar system

A ‘Super Earth’ really may lie at the edge of the Solar System, according to new research (Picture: Carnegie Institution for Science) And its unusual orbit supports the theory there may be a huge, roc... read more

Wandering Jupiter accounts for our unusual solar system

Jupiter is thought to have migrated inward toward the sun before retreating to its current position in the solar system. (Photo credit: NASA/Cassini) This diagram shows the orbital distribution of ext... read more

Does wandering Jupiter account for our strange solar system?

Jupiter may have swept through the ... Laughlin said: Now that we can look at our own solar system in the context of all these other planetary systems, one of the most interesting features is the abse... read more

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Wandering Jupiter swept away super-Earths, creating our unusual Solar System

This artist’s concept illustrates an imminent planetary collision between first generation planets whose orbits have been disrupted due to Jupiter ... at our own Solar System in the context of all the... read more


Video Shows More and More Asteroids Smashing Into the Moon as Time Goes By

“If one of these breakup events occurred sometime before 290 million years ago, that could account for the current increased ... “Changes in the rate can signal interesting processes in our solar syst... read more

Was our Solar System Once Home to a now-Rogue Planet?

Astronomers know that it is not entirely unusual ... life wandering alone throughout the interstellar medium, directly orbiting the galaxy itself instead of a parent star. Could one of these orphan pl... read more

Stony meteorites reveal the timing of Jupiter’s migration

Our solar system ... to vaporize iron on impact. Jupiter’s gravitational pull would also have pulled in material from the outer reaches of the solar system, mixing it with what was already in the aste... read more

The galaxy may swarm with billions of wandering planets

So that leaves them forming in solar systems like our planets did ... will be tossed out of the system entirely. It’s those last that are so interesting. If the inward-moving planet is, say, five time... read more

How special is the Solar System?

Is ours really unique? Our solar system follows ... Hot planets, such as Mercury and Venus in our solar system, warm (possibly habitable) planets such as Earth and Mars, and cold planets such as Jupit... read more

‘Rogue Planets’ Are Roaming Our Galaxy

We live in an era when it is not unusual ... our expectations from planet formation theories." That is great news for anyone who fears unexpected collisions between Earth and unmoored gas giants like ... read more

Wandering Jupiter accounts for our unusual 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, according to a new study published ... read more

Wandering Jupiter accounts for our unusual solar system

This snapshot from a new simulation by Caltech and UC Santa Cruz researchers depicts a time early in the solar system's history when Jupiter likely made a grand inward migration (here, Jupiter's orbit ... read more



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