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Planet

— Space

The Solar System may really have nine planets

There's good news for those who were annoyed when Pluto was knocked off the list of planets. According to a pair of scientists at Caltech, there may actually be nine planets in the Solar System after all. Researchers Konstantin Batygin and Mike Brown say that a planet ten times the mass of Earth may be circling the Sun in a highly elliptical orbit 20 times the distance of Neptune or 36 billion mi (60 billion km), with a year of 10,000 to 20,000 Earth years.

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— Space

Unexplained ripples streaking away from neighboring star could hold clues to planet formation

Astronomers have been left puzzled after images from the ESO's Very Large Telescope in Chile revealed mysterious wave-shaped structures around a nearby star, the likes of which have never been seen before. The features were observed in the disc of dust surrounding the young star AU Microscopii (AU Mic), and could lead to a new understanding of how planets form inside such discs.

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— Space

Combination radio/radar imaging produces stunning view of Venus

A team of astronomers combining radio data from the Green Bank Telescope, West Virginia, and data from the radar transmitter at the National Science Foundation's Arecibo Observatory, Puerto Rico, have compiled a stunning new view of Venus. Often described as Earth's twin due to its similar proportions, capturing high quality images of the inhospitable planet has traditionally been a challenging prospect thanks to extreme atmospheric conditions. However, by combining observations from the instruments to create a more complete picture of Venus, astronomers can begin to observe how this enigmatic celestial object evolves over time. Read More
— Space

Scientists discover ancient solar system hosting five Earth-sized planets

A team led by scientists from the University of Birmingham, UK, have discovered an ancient solar system dating back to the dawn of the Milky Way. What makes the system truly fascinating is the confirmed existence of five Earth-sized planets, which may have profound implications for the presence of ancient life existing from an early point in our galaxy's 13.8 billion year history. Read More
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