"You think you have an idea that can explain things and the next day you might get information that says that whole idea is wrong."

The Hubble image reveals details as small as 20 to 30 miles across

Announcement more than doubles the number of confirmed planets from Kepler

The moon—provisionally designated S/2015 (136472) 1 and nicknamed MK 2—is more than 1,300 times fainter than Makemake

Astronauts who experience Earth from orbit often report feelings of awe and wonder, of being transformed by what they describe as the magic such a perspective brings

As always, Hubble gives us much more than a pretty picture

The cosmic rays that are the subject of this study come from outside our solar system but within our Galaxy and are called galactic cosmic rays

Gamma-rays arising from a black hole merger would be a landmark finding because black holes are expected to merge "cleanly," without producing any sort of light

Some of the iron-metabolizing bacteria appear quite early on the tree of life, making the studies relevant to discovering the origins of life

Three recent studies reveal details about meteor impacts, giant planets and cosmic particle accelerators