BlogArena

General blog about anything and everything of everyday's life.

19. Sep 2019

June 5, 2015
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Earthlike ‘Star Wars’ Tatooines may be common

Simulations dispute dogma: rocky planets may orbit many double stars Luke Skywalker’s home in “Star Wars” is the desert planet Tatooine, with twin sunsets because it orbits two stars. So far, only uninhabitable gas-giant planets have been identified circling such … Continue reading

August 5, 2014
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The Most Precise Measurement of an Alien World’s Size

Thanks to NASA’s Kepler and Spitzer Space Telescopes, scientists have made the most precise measurement ever of the radius of a planet outside our solar system. The size of the exoplanet, dubbed Kepler-93b, is now known to an uncertainty of … Continue reading

February 5, 2014
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Kepler Finds a Very Wobbly Planet

Imagine living on a planet with seasons so erratic you would hardly know whether to wear Bermuda shorts or a heavy overcoat. That is the situation on a weird, wobbly world found by NASA’s planet-hunting Kepler space telescope. The planet, … Continue reading

January 7, 2014
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NASA’s Kepler Provides Insights on Enigmatic Planets

More than three-quarters of the planet candidates discovered by NASA’s Kepler spacecraft have sizes ranging from that of Earth to that of Neptune, which is nearly four times as big as Earth. Such planets dominate the galactic census but are … Continue reading

February 3, 2012
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Blowing Up Stars

*For his discoveries about the lives and deaths of stars, the exotic physics of black holes and the origin of chemical elements, UA Regents’ Professor David Arnett has been honored with the Henry Norris Russell Lectureship.* What happens when a … Continue reading

January 15, 2012
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NASA’s Kepler Mission Finds Three Smallest Exoplanets

PASADENA, Calif. – Astronomers using data from NASA’s Kepler mission have discovered the three smallest planets yet detected orbiting a star beyond our sun. The planets orbit a single star, called KOI-961, and are 0.78, 0.73 and 0.57 times the … Continue reading

December 6, 2011
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NASA’s Kepler Confirms Its First Planet in Habitable Zone

PASADENA, Calif. — NASA’s Kepler mission has confirmed its first planet in the “habitable zone,” the region around a star where liquid water could exist on a planet’s surface. Kepler also has discovered more than 1,000 new planet candidates, nearly … Continue reading

February 3, 2011
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Earth-Size Planet Candidates Found in Habitable Zone

PASADENA, Calif. — NASA’s Kepler mission has discovered its first Earth-size planet candidates and its first candidates in the habitable zone, a region where liquid water could exist on a planet’s surface. Five of the potential planets are near Earth-size … Continue reading