Tag Archive for 'rover'

Deep-sea fishes living in darkness have evolved unique predation and communication mechanisms involving bioluminescence and other strategies. Another adaptation is the transparency of the teeth of several species, which is hypothesized to provide stealth for predation. Velasco-Hogan et al investigated the transparent teeth of Aristostomias scintillans and discovered that it is due to the mixture of nanocrystalline and amorphous phases in both its enamel-like and dentin layers and the absence of tubules. This structure significantly decreases the Rayleigh scattering of the hydroxyapatite-collagen mixture. Image credit: Velasco-Hogan et al, doi: 10.1016/j.matt.2019.05.010.

Why Deep-Sea Dragonfish Has Transparent Teeth

Jun 10, 2019 by News Staff

A species of dragonfish called Aristostomias scintillans is a voracious predator of the deep sea with an arsenal of tools to hunt prey. It has proportionately...

Mysterious Spherical Objects on Mars Puzzle NASA Scientists

Sep 21, 2012 by News Staff

NASA’s rover Opportunity has returned an image of the Martian surface that is puzzling researchers. Opportunity photographed these small spherical...

Mars Rover Opportunity Sees Its Own Shadow

May 24, 2012 by News Staff

NASA’s Mars Exploration Rover Opportunity has taken a memorable view of a large Martian crater. Late afternoon shadows at Endeavour Crater on Mars,...

Model of Wind-Driven Tumbleweed Mars Rover Developed

May 23, 2012 by News Staff

North Carolina State University researchers have developed a model of a wind-driven tumbleweed Mars rover capable of moving across rocky Martian terrain. Model...

Study Provides More Evidence of Water and Dense Atmosphere on Early Mars

May 4, 2012 by James Freeman

A team of US researchers has found new evidence that early Mars was saturated with water and that its atmosphere was considerably thicker, at least 20...

Rover Opportunity Data Reveals Necessary Conditions for Life Once Existed on Mars

May 4, 2012 by News Staff

An international team of scientists analyzing data from NASA’s Mars Rover Opportunity has announced that the rover found what appeared to be veins...