News tagged with sun

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Why is comet ISON green?

Undoubtedly, you've been seeing the recent images of Comet ISON now that it is approaching its close encounter with the Sun on November 28. ISON is currently visible to space telescopes like the Hubble and ...

Oct 25, 2013 5 / 5 (2) 2

Brown dwarf companion stars

(Phys.org) —Astronomers trying to understand how the Sun and Earth formed, and why they have their characteristic properties, have made progress on a closely related problem: the nature of the lowest mass ...

Sep 02, 2013 4.3 / 5 (4) 0 | with audio podcast