From volcanic eruptions to ozone holes, a NASA instrument that monitors Earths upper atmosphere marks twenty years in orbit.
The Stratospheric Aerosol and Gas Experiment II (SAGE II) instrument was deployed October 5, 1984, from the Space Shuttle Challenger aboard the Earth Radiation Budget Satellite (ERBS.) Originally scheduled for a two-year mission, SAGE II continues to give scientists a wealth of data on the chemistry and motions of the upper troposphere and stratosphere. "The importance of the SAGE II data is helping to solve some exceedingly important societal issues like ozone depletion and greenhouse warming," said SAGE II principal investigator Dr. M. Patrick McCormick, Co-Director of the Center for Atmospheric Sciences at Hampton University, Hampton, Va. "SAGE II has been a defining experience for my career and me."
Managed by NASA Langley Research Center in Hampton, Va., SAGE II is part of NASAs Earth Radiation Budget Experiment (ERBE.) The series of satellites launched in the mid -1980s were designed to investigate how energy from the Sun is absorbed and re-emitted by the Earth – one of the main processes that drive weather patterns. Observations from the ERB satellite are also used to study the effects on the Earths radiation balance from human activities -- burning fossil fuels and the use of chemicals -- and natural occurrences such as volcanic eruptions.
Chris Rink | EurekAlert!
Waste from paper and pulp industry supplies raw material for development of new redox flow batteries
12.10.2017 | Johannes Gutenberg-Universität Mainz
Low-cost battery from waste graphite
11.10.2017 | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt
University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
17.10.2017 | Event News
10.10.2017 | Event News
10.10.2017 | Event News
18.10.2017 | Health and Medicine
18.10.2017 | Life Sciences
17.10.2017 | Life Sciences