Orbital Forensics Hint at Sun’s Long-Lost Planet

Our solar system might have once ejected a giant planet that now wanders among the stars, much like the lonely world illustrated here.

Our solar system is like a 4.6-billion-year-old crime scene.Crater-ridden surfaces, misaligned planetary orbits and streams of interplanetary debris are the cosmic equivalents of blood spatters on the wall and skid marks from a getaway car. These and other clues tell of a chaotic beginning for our planetary family.Buried in those

Trio of infant planets discovered around newborn star

Two independent teams of astronomers have uncovered convincing evidence that three young planets are in orbit around an infant star known as HD 163296. Using a new planet-finding strategy, the astronomers identified three discrete disturbances in a young star’s gas-filled disk: the strongest evidence yet that newly formed planets are

Devourer of planets? Researchers dub star ‘Kronos’

Kronos

In mythology, the Titan Kronos devoured his children, including Poseidon (better known as the planet Neptune), Hades (Pluto) and three daughters.So when a group of Princeton astronomers discovered twin stars, one of which showed signs of having ingested a dozen or more rocky planets, they named them after Kronos and

Twilight observations reveal huge storm on Neptune

Neptune

Spectacular sunsets and sunrises are enough to dazzle most of us, but to astronomers, dusk and dawn are a waste of good observing time. They want a truly dark sky.Not Ned Molter, a UC Berkeley astronomy graduate student. He set out to show that some bright objects can be studied

Mysterious ‘orphan’ planets found roaming through space

orphan

The rocky worlds are believed to move through galaxies and could host life in deep hydrothermal vents, according to new research Earth sized planets that could harbour life roam the darkness of space - between the stars, according to new research.The wandering worlds - known as 'free floating' or 'orphan' planets

The worst storm in the solar system

storm

Whenever you want to have a non-controversial conversation with someone you don’t know very well, it’s a safe bet that talking about the weather will do the trick. Everyone has some memorable weather stories — getting soaked in a downpour, the air conditioning breaking during a heat wave, camping in

The Moon’s Interior Could Contain Lots of Water

lunar

Ancient volcanic deposits on the moon reveal new evidence about the lunar interior, suggesting it contains substantial amounts of water.Using satellite data, scientists from Brown University studied lunar pyroclastic deposits, layers of rock that likely formed from large volcanic eruptions. The magma associated with these explosive events is carried to the

Eight Other Worlds In Our Solar System Might Have Life Beyond Earth

Kepler

In all the known Universe, to the best that we've examined it, only our home planet, Earth, contains confirmed signs of life. But the raw ingredients required for life appear everywhere, from the interiors of asteroids to interstellar gas clouds to protoplanetary nebulae to the exploded remnants of supernovae. The

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