1 Proterozoic: this eon refers to the time from the lower Cambrian boundary, 541.0 Â± 1.0 Ma, back through 2500 Ma. 2  As originally used, it was a synonym for Precambrian and hence included everything prior to the Cambrian boundary.
Canon's 50-megapixel EOS 5DS is the highest-resolution full-frame DSLR ever. If you thought the megapixel wars were over, think again: Canon's latest DSLRs cram just over 50 of them into a full-frame sensor.
Uranus with its Rings. This is the highest resolution image of Uranus with its rings ever assembled. Four separate images were mosaicked together to create the picture of Uranus. The rings were made from two high resolution images of Uranus's rings in which a strip was cut out and projected for a full 360 degrees.