At left, head and neck squamous cell carcinoma invasive growth, and at right, cancer stem cells (shown in red) in head and neck squamous cell carcinoma. Credit: Demeng Chen and Cun-Yu Wang/UCLA

Head and neck squamous cell carcinoma is a highly invasive form of cancer and frequently spreads to the cervical lymph nodes. Currently, cisplatin is the standard therapeutic drug used for people with HNSCC. Yet, more than 50% of people who take cisplatin demonstrate resistance to the drug, and they experience a recurrence of the cancer. The 5-year survival rates remain sorely low and researchers still don’t understand the underlying mechanisms behind head and neck squamous carcinoma.

Cancer stem cells are known to be responsible for tumor formation and development; they also self-renew and tend to ...

Scientists at Los Alamos National Laboratory and their research partners are creating innovative 2-D layered hybrid perovskites that allow greater freedom in designing and fabricating efficient optoelectronic devices. Credit: Los Alamos National Laboratory

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating innovative 2D layered hybrid perovskites that allow greater freedom in designing and fabricating efficient optoelectronic devices...

These raw, unprocessed images of Saturn’s moon Pan was taken on March 7, 2017 by NASA’s Cassini spacecraft. Image Credit: NASA/JPL-Caltech/Space Science Institute

New raw, unprocessed images of Saturn’s tiny moon, Pan, were taken on March 7, 2017, by NASA’s Cassini spacecraft. The flyby had a close-approach distance of 24,572 kilometers (15,268 miles).
These images are the closest images ever taken of Pan and will help to characterize its shape and geology.

The Cassini-Huygens mission is a cooperative project of NASA, ESA (European Space Agency) and the Italian Space Agency. NASA’s Jet Propulsion Laboratory in Pasadena, California, manages the mission for the agency’s Science Mission Directorate in Washington...

Still image from a movie clip showing a global map of Mars with atmospheric changes from Feb. 18, 2017, through March 6, 2017, a period when two regional-scale dust storms appeared. Credit: NASA/JPL-Caltech/MSSS

A regional dust storm currently swelling on Mars follows unusually closely on one that blossomed less than 2 weeks earlier and is now dissipating, as seen in daily global weather monitoring by NASA’s Mars Reconnaissance Orbiter. Images from the orbiter’s wide-angle Mars Color Imager (MARCI) show each storm growing in the Acidalia area of northern Mars, then blowing southward and exploding to sizes bigger than the United States after reaching the southern hemisphere.

That development path is a common pattern for generating regional dust storms during spring and summer in Mars’ south...