Prizes & Awards: British Council ISA: Celebrating Internationalism in Schools  |  Science Innovations: Heart simulations on cellphone   |  National Edu News: Science film production  |  International Edu News: Singapore medical training move  |  Scholarships & Sponsorships: National Scholarships Portal- Single Point Solution for Students, Institutions  |  Education Information: World Population To be 9.7 Bn, India to be Most Populated Nation by 2050  |  Life Inspirations: How Rhodell Kpandyu of Liberia Became a Heavy Equipments Technician  |  Health Monitor: FB Posts Indicator of Mental Health and Diabetes  |  Career News: IBPS RRB 2019 Application Link Activated   |  Life Inspirations: Sushila Sable-From Waste Picker to Ambassador of Climate Change  |  Science Innovations: Killing drug-resistant bacteria  |  Technology Inceptions: Canon EOS 200D II DSLR With Dual Pixel AF  |  Teacher Insights: Exercise activates memory neural networks   |  Management lessons: BPCL Allows Women Chemical Engineers in Night Shift  |  Health Monitor: Increase in Global Alcoholism Raises Global Disease Burden  |  
  • Pallikkutam Magazine
  • Companion Magazine
  • Mentor
  • Smart Board
  • Pallikkutam Publications

October 28, 2017 Saturday 05:51:00 PM IST

NASA's sounding rocket to find dark regions of space

Science Innovations

Washington: NASA plans to launch on Monday a sounding rocket to study the darks voids in between the stars and galaxies that fill the night sky.The cold, diffuse gas between galaxies -- called the intergalactic medium, or IGM for short -- hardly emits any light. To shed light on the nature of the IGM, the sounding rocket will be equipped with special ultraviolet optics, NASA said on Saturday. The experiment will launch from the White Sands Missile Range Las Cruces in New Mexico. 

The Dual-channel Extreme Ultraviolet Continuum Experiment, or DEUCE for short, plans to measure starlight from a pair of nearby hot stars in the constellation Canis Major, aiming to help researchers understand how the IGM got to its current state, NASA said.

Scientists know that the IGM, which is mostly hydrogen, has been blasted with high-energy radiation, causing the electrons to break apart from their atoms -- a process known as ionisation. Many think intense ultraviolet starlight from star-forming galaxies is responsible for ionising the universe, but not all agree this is the sole cause. 

Since Earth's atmosphere blocks ultraviolet light, it is impossible to study this type of radiation from the ground. Instead, scientists must capture this light from above the atmosphere and sounding rockets -- which provide an inexpensive alternative to space telescopes -- are a practical option.


"DEUCE is about being able to better understand if and how star-forming galaxies ionized the early universe," said one of the researchers involved in the project Nicholas Erickson from University of Colorado Boulder. 

"This ionising light has never been measured accurately in hot stars, and DEUCE will make the first calibrated measurement of it, telling us the contribution stars could have had to helping ionise the universe," Erickson said.

Comments