Understanding stock market returns: Which models fits best?

Understanding stock market returns hinges on understanding their volatility. Two simple but competing models have been…

Hybrid Fuel Coupling in a Pulsed Z-Pinch Rocket Engine

Abstract: The work presented here sought to explore a portion of the parameter space of a…

Intelligent metamaterials behave like electrostatic chameleons

A chameleon can flexibly change its colour to match its surroundings. And a similar phenomenon can…

SwRI to conduct largest-ever Hubble survey of the Kuiper Belt

NASA's Space Telescope Science Institute (STScI) recently awarded Southwest Research Institute the largest Hubble Space Telescope…

ISS Daily Summary Report – 4/02/2019

Behavioral Core Measures (BCM): Over the weekend, the crew completed BCM cognition test sessions. Behavioral Core…

Sensor Analysis, Modeling, and Test for Robust Propulsion System Autonomy

Abstract: An approach is presented supporting analysis, modeling, and test validation of operational flight instrumentation (OFI)…

Efficient On-Orbit Singularity-Free Geopotential Estimation

Abstract: The complexity of the geopotential model can heavily impact the navigation error in satellites and…

Canada warming twice as fast as the rest of the world, report says

The federal government report warns Canada's Arctic is most affected by the changing climate.

Recent FY18/FY19 NTP Materials Development Activities at NASA Marshall

Abstract: No abstract available

Circadian clock plays unexpected role in neurodegenerative diseases

Researchers induced jet lag in a fruit fly model of Huntington disease and found that jet…