October 18, 2017
Second stars can distort planet size estimates
When light from a star is blocked by another celestial body — as when the moon obstructed light from the much-larger sun during the recent solar …
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September 25, 2014
High-powered simulation tracks evolution of universe in detail
The universe burst into existence 14.6 billion years ago, and has been expanding ever since. Of course, humans have only been around to glimpse …
August 19, 2014
Twinkle, twinkle new little star
What’s red, sparkly and far from home? Not Dorothy’s shoes, but a Thorne-Zytkow object (TZO), a type of hybrid star theorized since 1975 to exist …
August 12, 2014
Unprecedented low water-vapor levels detected on exoplanets
Dust surrounding a star coalesces into larger particles, spinning and building over a million years or more to create the beginning of a planet. …
April 25, 2012
North star loses mass but still shines bright
The North Star, the Pole Star, the Guiding Star, Polaris: Its many names reflect the many centuries humans have gazed northward to it for …
January 5, 2012
Scientists find watery super-Earth
The search for Earth-like planets has never looked better. Scientists say they have discovered a water-rich planet that is only 2.7 times larger …
January 5, 2012
Online stargazing with GigaGalaxy Zoom
Blogging on EARTH In need of a sense of perspective? The European Southern Observatory has a new way to look at the universe: with a zoom button. …