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ALMA has been used to detect turbulent reservoirs of cold gas surrounding distant starburst galaxies. By detecting CH+ for the first time in the distant Universe this research opens up a new window of exploration into a critical epoch of star formation. The presence of this molecule sheds new light on how galaxies manage to extend their period of rapid star formation.

Using ESO’s Very Large Telescope Interferometer astronomers have constructed the most detailed image ever of a star — the red supergiant star Antares. They have also made the first map of the velocities of material in the atmosphere of a star other than the Sun, revealing unexpected turbulence in Antares’s huge extended atmosphere.

The moon is seen blotting out 81 percent of the sun during a solar eclipse in Washington, D.C., Monday, Aug. 21, 2017.

A gold nanostar under an electron microscope. The nanostar's size causes it to accumulate within tumors, where researchers use infrared light to heat it and destroy cancerous growths.

Silk could soon be used to produce more sensitive and flexible body sensors like this one.

Asteroid Florence, a large near-Earth asteroid, will pass safely by Earth on Sept. 1, 2017, at a distance of about 4.4 million miles.

The researchers used Au20, gold nanoparticles with a tetrahedral structure, to show that fluorescence in ligand-protected gold clusters is an intrinsic property of the gold nanoparticles themselves.

Supercapacitors promise recharging of phones and other devices in seconds and minutes as opposed to hours for batteries. But current technologies are not usually flexible, have insufficient capacities, and for many their performance quickly degrades with charging cycles.

http://www.nanotech-now.com/news.cgi?story_id=54680

內湖 2021 陳鵬程

Observations of “Jellyfish galaxies” with ESO’s Very Large Telescope have revealed a previously unknown way to fuel supermassive black holes. It seems the mechanism that produces the tentacles of gas and newborn stars that give these galaxies their nickname also makes it possible for the gas to reach the central regions of the galaxies, feeding the black hole that lurks in each of them and causing it to shine brilliantly.

These two views of Saturn's moon Titan exemplify how NASA's Cassini spacecraft has revealed the surface of this fascinating world.