Virtual Hearts, Fanged Deer And Other Amazing Images Of The Week

Plus a drone's-eye-view of Greenland

Comet Revealed

Examine the surface detail of a comet as never seen before. The Rosetta spacecraft, scheduled to make contact with comet 67P/Churyumov-Gerasimenko on November 12, took this remarkable photo of the "rubber ducky" comet. The image shows the extraterrestrial landscape in high contrast, with sand dunes drifting across the middle. It looks beautiful, but the comet apparently smells awful, like "sharing a horse barn with a drunk and a dozen rotten eggs."ESA/Rosetta/Navcam

Egmont National Park

From space, New Zealand's Egmont National Park looks like a stunning green circle centered around the volcano Mount Taranaki, which has lain dormant for more than 150 years. The park is home to a tropical rainforest.KARI/ESA

Speed Boost

Run up to 25 miles per hour with the Bionic Boot. Watch as inventor Keahi Seymour's fancy footware allows him to emulate an ostrich's wide strides and running style.Keahi Seymour

Little Earth, Big Moon

With a play on perspective, Earth and the Moon have reversed roles. The picture came from China's lunar test probe, Chang'e 5TI, during its trip around the moon this week.Xinhua

Pick Your Poison

You might want to limit your Halloween binge following a new recommendation from the World Hearth Organization, which states that free sugars should only make up five percent of one's daily calories. An active 10-year-old should only consume about 5.8 teaspsoons of sugar per day--that's approximately eight Starburst, or five mini peanut butter cups.Sam Kaplan

Fanged Deer

These toothy deer haven't been seen in 60 years, until this October--just in time for Halloween! Kashmir musk deer may be reminiscent of Dracula but they use their fangs to challenge other males and woo females, not to suck anyone's blood. Habitat loss and poaching for their musk glands have dramatically shrunk their populations. There were five recent reported sightings of the elusive Kashmir musk deer, but no photographs were taken. The deer pictured above is its cousin, the Siberian musk deer.Julie Larsen Maher © WCS

Virtual Heart

A 3-D model of a patient's heart shows unique characteristics like scar tissue to study personal ailments. With these virtual organs, doctors can make more informed diagnoses and improve treatment of heart diseases. A 3-D model is made by merging MRI scans with image processing tools.Johns Hopkins University

3D Gastric Tissue

For the first time, scientists have successfully grown functional human gastric tissue in a lab. They were able to turn stem cells into stomach cells which formed a sort of a "mini-stomach" which could mimic major cellular activities off a full-sized human version.Kyle McCracken

Titan's Glowing Seas

The Cassini space probe soared near Saturn's moon, Titan, this week and captured a photo of its hydrocarbon seas. You can see the sun glistening off its north polar seas.NASA/JPL-Caltech/Univ. Arizona/Univ. Idaho

Dark Snow Project

A drone's-eye-view of the camp of the Dark Snow Project, an effort by climate scientists and geologists to find out how dust, soot, and algae are changing the reflectivity of Greenland's ice sheet. The dirty snow absorbs more heat from the sun, which quickens melting.Johnny Ryan/Dark Snow Project