Tuesday, 11 July 2017

Hidden Stars May Make Planets Appear Smaller

This cartoon explains why the reported sizes of some exoplanets may need to be revised in cases where there is a second star in the system.

In the search for planets similar to our own, an important point of comparison is the planet's density.





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NASA Finds Young Stars Dim in X-rays Surprisingly Quickly

Trumpler 3 and NGC 2353 (Labeled). X-ray: NASA/CXC/Penn State Univ/K. Getman; Optical/IR: PanSTARRS; Image Processing: NASA/CXC/SAO/N....