Curiosity at the Sand Shadow Site in Mars' Gale Crater
NASA
2 percent: the portion of Martian soil that was water in a recent analysis from the rover Curiosity
4: the number of aluminum mirrors in these telescopic contacts lenses
Contact Lens
Trevor Johnston
66: the number of radio dishes in the most ambitious ground telescope ever built
On the move
Transporting the ALMA observatory's 100-ton antenna dishes requires a truck with two 700-hp engines.
ESO/S. Stanghellini
1969: the year scientists first used the word "flashback" to describe a reoccurrence of an LSD-like state (are acid flashbacks a myth?)
100 microns: the length of the magnetic nano-cages that could some day carry drugs into your brain or eyes
Magnetic Microrobots
It's like a magic elevator for medicine.
Sangwon Kim, Famin Qiu, Samhwan Kim, Ali Ghanbari, Cheil Moon, Li Zhang, Bradley J. Nelson, Hongsoo Choi
$449: the price of the new Microsoft Surface 2 tablet
Microsoft Surface 2's New Screen
Dan Nosowitz
19: the number of elements that got new official atomic weights this week, thanks to improved measurements
