The Week In Numbers: An Asteroid-Zapping Space Laser, The Worst Planets In The Universe, And More

Exoplanet COROT-7b

It rains rocks hereESO/L. Calçada

4,580 degrees Fahrenheit: the surface temperature on exoplanet COROT-7b, one of the 10 worst places to live in the universe, according to NASA scientists

600 miles: the diameter of the largest known asteroid, Ceres (could an asteroid impact knock the moon into Earth?)

Collision Course

It would take a moon-sized object to move the moon.NASA/JPL-Caltech

70 gigawatts: the power of a concept space laser that would vaporize incoming asteroids

Asteroid Impact Avoidance

Trevor Johnston

50 percent: the reduction in suicide risk for men who drank two to four cups of coffee daily, in a new study

.01 millimeters: the smallest motion that the Leap Motion controller can track (see how two grade-school friends created the technology that could kill the computer interface as we know it)

How Leap Motion Works

Sensors on the Leap Motion controller capture movement within an eight-cubic-foot cone. Holz's algorithms translate hand motions into 3-D data with .01 millimeter accuracy.Cody Pickens

11.5 million light-years: the distance to the spiral Sculptor Galaxy, which looks like a trippy watercolor painting in an image from the new Atacama Large Millimeter-submillimeter Array

The Sculptor Galaxy

This picture shows a view of a three-dimensional visualisation of ALMA observations of cold carbon monoxide gas in the nearby starburst galaxy NGC 253 (The Sculptor Galaxy). The vertical axis shows velocity and the horizontal axis the position across the central part of the galaxy. The colours represent the intensity of the emission detected by ALMA, with pink being the strongest and red the weakest. These data have been used to show that huge amounts of cool gas are being ejected from the central parts of this galaxy. This will make it more difficult for the next generation of stars to form.ESO

10 days: the average time it took men to recover after heart surgery during the full moon, compared with 14 days during other parts of the moon cycle

2017: the year the U.S. Army may get a new surveillance blimp that can float at 10,000 feet for 30 days straight

Raytheon's JLENS Blimp

U.S. Army

20 hours: the time it takes this button-bashing robot to crack the passcode on an Android phone

3 million miles: about how close you could get to the sun before you died

The sun, ooh

NASA

2.2 billion years: the time creatures have been living on land, according to new fossil evidence (that's waaaay earlier than previously thought)

Diskagma buttonii

Fossils found in South African soil suggest evidence of life 2.2 billion years ago.courtesy of Gregory Retallack

41 degrees Fahrenheit: the temperature of a special cap that could prevent hair loss if worn during chemotherapy

Cold Cap

Hospital staff help a patient put on a cold cap.Dignitana

$35: the price of Google's new Chromecast device, a small streaming TV stick

Google Chromecast

Google