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In search of time travelers

(Phys.org) —It started over a poker game. Astrophysicist Robert Nemiroff and his students were playing cards (for chips) last summer, chatting about Facebook. They wondered: If there were time travelers ...

Jan 06, 2014
2.5 / 5 (11) 4 | with audio podcast

What caused the recent explosion at Jupiter?

A bright flash was spotted on Jupiter early on the morning of September 10, 2012, and astronomers were hoping to later see an impact "scar" which would provide more information about the object that slammed ...

Sep 24, 2012
5 / 5 (5) 1

A new view of comet ISON

Here's a new image of Comet C/2012 S1 ISON, as seen on May 1, 2013 by Ernesto Guido and Nick Howes of the Remanzacco Observatory. They used the 2 meter La Palma Telescope. Their initial approximation of the ...

May 03, 2013
5 / 5 (5) 0

Will comet ISON survive its brush with the Sun?

(Phys.org) —The much-anticipated close approach of comet ISON to the Sun this November may be spectacular as viewed from Earth, but it's unlikely to spell the end of the comet, according to a numerical-simulation study ...

Oct 11, 2013
4.8 / 5 (5) 1 | with audio podcast

The dual personality of comet 67P/C-G

(Phys.org) —This week's images of comet 67P/Churyumov-Gerasimenko reveal an extraordinarily irregular shape. We had hints of that in last week's images and in the unscheduled previews that were seen a few ...

Jul 18, 2014
4.8 / 5 (5) 2

PanSTARRS K1, the comet that keeps going

Thank you K1 PanSTARRS for hanging in there! Some comets crumble and fade away. Others linger a few months and move on. But after looping across the night sky for more than a year, this one is nowhere near ...

Sep 30, 2014
4.8 / 5 (5) 0