The European Space Agency (ESA) satellite observatory Gaia, whose mission is to produce a 3D map of the Milky Way, has sent back a new and updated map of the galaxy that contains detailed information on more than 1.8 billion sources and is being called a "treasure trove for astronomers."
You think 41 megapixels is a lot? Try 1000 megapixels! That's how much resolution the camera attached to the ESA's Gaia satellite is packing; a satellite that, as of yesterday, has left the Earth in its quest to photograph things that have never been photographed before at a resolution as of yet unheard of in space photography.
A 268-megapixel sensor might suffice for photographing the stars through a telescope, but apparently a sensor many times more powerful is needed for photographing alien planets from space.