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Planetary Formation

It’s Tough to Find Evidence of Stars Eating Planets

Tragically sometimes stars engulf their own planets. While most stars are able to quickly cover up the evidence...

A new way to Discover Planets? Astronomers Detect an Exoplanet by Seeing its Trojan Belts

Although we have found thousands of exoplanets in recent years, we really only have three methods of finding them....

Massive Stars don’t Always Grow Their own Planets. Sometimes They Steal Them

Recently astronomers have discovered Jupiter-sized planets orbiting at extremely large distances from giant stars. How can these stars...

Carbon Monoxide is Plentiful in Nebulae, but Then Disappears When Planets Form. Now we Know Where it Goes!

Protoplanetary disks—those nurseries around young stars where planets form—are filled with gas and dust. In particular, many show...

How Do Hot Jupiters Get So Close to Their Stars?

In this age of exoplanet discovery, we’ve discovered thousands of exoplanets of different types. The hot Jupiter is...

Jupiter is up to 9% Rock and Metal, Which Means it Ate a lot of Planets in its Youth

Jupiter is composed almost entirely of hydrogen and helium. The amounts of each closely conform to the theoretical...

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