NASA`s Hubble captures `most colorful view of the Universe`

NASA`s Hubble captures `most colorful view of the Universe`

Scientists have discovered two new planets orbiting an ancient star near our Sun and one of them may have liquid water on its surface, a key ingredient to support life. An international team of astronomers studied Kapteyn’s Star, the second fastest-moving star in the sky, which is only 13 light years away from Earth.

The astronomers used new data from the HARPS spectrometer at the European Southern Observatory’s La Silla observatory, the Planet Finding Spectrometer at the Magellan/Las Campanas Observatory in Chile, and the HIRES spectrometer at Keck Observatory in Hawaii to measure tiny periodic changes in the motion of the star.

The Doppler Effect enabled the scientists – including Carnegie Institution’s Pamela Arriagada, Paul Butler, Steve Shectman, Jeff Crane, and Ian Thompson – to deduce some properties of these planets, including their masses and orbital periods.

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