55 million years: the age of the sedimentary rock strata in which scientists discovered this skeleton of a Archicebus achilles, the oldest-known primate fossil

90 days: the record-breaking time in which a Chinese firm plans to build the world’s next tallest building, the 2,750-foot, 220-story Sky City

The 90-Day Skyscraper

2017: the year NASA will test an intergalactic GPS that can determine your location even in deep space

Vela Pulsar

This is the Vela pulsar, located about 1,000 light-years from Earth. One NASA team is looking to use pulsar light in a GPS-like system that would help spacecraft navigate anywhere in space.

300 light-years: the distance from Earth to this newly discovered planet, the lightest exoplanet ever caught on camera

Exoplanet HD 95086 b, next to its parent star

The star itself was removed from the picture during processing to enhance the view of the faint exoplanet, which appears at the lower left.

2.6 miles: the span of last week’s tornado in El Reno, Okla., the widest twister ever recorded

El Reno Tornado

70 percent: the percent by which the presence of nearby islands can worsen a tsunami, according to a new computer simulation

Watch Out For Tsunami!

1 million: the average number of skin cells a human loses in a 24-hour period (that’s why people lose their tans in the winter)

$30,000: the cost to train a bomb-sniffing dog. Scientists are trying to build a mass-producible, artificial nose that detects explosives as well as a canine’s.

Artificial Nose?

200: the number of times more of the isotope Lithium-6 in our universe than Big Bang theory accounted for—until now. Scientists resolved this major inconsistency after a telescope upgrade revealed that earlier measurements of the isotope were faulty.

Lithium Levels