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Scientists watch a comet being born 3 billion miles away

    From:  Space.Com  By Keith Cooper Edited by:  Amal Udawatta An artist's impression of a centaur gradually transitioning into a comet with a coma and tail. Image credit: iStock) Astronomers have witnessed a small, icy body that orbits the Sun out beyond Jupiter transforming into a comet, providing a missing link between comets and inert bodies called centaurs. The object in question is called 450P/LONEOS and is named after the Lowell Observatory survey that found it back in 2004. It is a centaur, which is a breed of inactive body that orbits the sun between Jupiter and Neptune . These objects are thought to have wandered in from the Kuiper Belt beyond Pluto , their paths perhaps perturbed by distant gravitational interactions with the gas giant planets, or even a nudge from a passing star . Because a given centaur's orbit crosses the path of at least one of Jupiter, Saturn , Uranus and Neptune, a centaur's orbit is unstable over millions of years. C...
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How a small island in Canada appeared, vanished, and was found again

   From: BBC World News By :-   Nadine Yousif      Senior Canada reporter Edited by:  Amal Udawatta  Supplied by Rocky Avery The floating island was first spotted by boaters in mid-August   A small, floating island on a lake in the Canadian province of British Columbia has been spotted again after officials lost track of it on satellite images following its initial discovery. The forested island was first spotted in the middle of Williston Reservoir, BC's largest fresh water lake, in early August by boaters who captured the scene in a video that has since gone viral. : S A satellite image from late July confirmed the existence of the island, which is the size of about one-and-a-half American football fields. But a few weeks later, it had vanished from that spot. Officials in BC say they have now been able to locate it again near shore, though it's unclear where it came from. Bob Gammer, a spokesperson for BC Hydro, a government-owned uti...

‘Super-Earth’ planet shows signs it could have an atmosphere

   Edited by : Amal Udawatta   By : Jacopo Prisco From:  CNN Science News       An artist’s concept shows exoplanet LHS 1140b (right) surrounded by a helium-rich atmosphere. Melissa Weiss/CfA/Harvard Scientists say they have detected promising signs that a planet orbiting a star 49 light-years from Earth could have an atmosphere, making it potentially suitable for life. Called LHS 1140b, the object is about five times the mass of our planet, or a “ super-Earth .” This planet orbits around its star in the “ Goldilocks zone ,” also known as the habitable zone, meaning its surface temperature is not too hot or too cold for liquid water to exist. “We believe it is also predominantly a rocky planet, based on its mass and its radius measurements, which gives us a density estimate,” said Collin Cherubim, a planetary scientist and lead author of a paper on the finding, published July 16 in the journal Science. “It appears to be consistent with Earth, m...