There’s Something Strange Going On Inside Neptune

Something mysterious is going on inside the ice giant Neptune.

When Voyager 2 reached Neptune in 1989, just 12 years after setting off on its historic journey through the solar system, it discovered six new moons, took the first images of the planet's rings and noted a particularly violent storm.The storm was something of a surprise. In the southern hemisphere,

‘Planet Nine’ may actually be a black hole

Gallery of Space Time Travel

For nearly 5 years, growing numbers of scientists have blamed the weird orbits of distant solar system objects on the gravitational effects of an as-yet-undiscovered “Planet Nine” that lies in the icy realm far beyond Neptune. But a pair of physicists is now floating an intriguing idea that could offer

What makes a planet habitable

Artist's impression shows a view of the surface of the planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to the Solar System.

Which of Earth's features were essential for the origin and sustenance of life? And how do scientists identify those features on other worlds?A team of investigators with array of expertise ranging from geochemistry to planetary science to astronomy published this week an essay in Science urging the research community to

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’


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