Featured Research

from universities, journals, and other organizations

Scientific "Fireworks Display" Set For East Coast In July

Date:
July 1, 1999
Source:
National Aeronautics And Space Administration
Summary:
NASA will set off its own Independence Day fireworks during a series of nighttime rocket launches from July 2 to 20, 1999. Designed to study "space weather" -- the interaction of the solar wind with the Earth's magnetic field and atmosphere -- the experiments will focus on improving our understanding of electrically charged atoms at the edge of space.

NASA will set off its own Independence Day fireworks during a series of nighttime rocket launches from July 2 to 20, 1999. Designed to study "space weather" -- the interaction of the solar wind with the Earth's magnetic field and atmosphere -- the experiments will focus on improving our understanding of electrically charged atoms at the edge of space.

Related Articles


During the 19-day period, two suborbital rockets will be launched on each of two nights between 9:30 p.m. and 4 a.m. EDT from the NASA Goddard Space Flight Center's Wallops Flight Facility, Wallops Island, VA.

Two of the experiment packages will release a chemical that will form large glowing clouds in space. These luminescent milky-white clouds should be visible to the naked eye for several hundred miles from the launch site, encompassing the mid-Atlantic region and portions of the northeastern and southeastern United States. The clouds should be visible for 10 to 20 minutes to the southeast of the launch site at about 70 degrees elevation (approximately three-quarters of the way between the horizon and the point of the sky that appears to be directly above an observer).

The chemical, trimethylaluminum, will be released in the ionosphere between 43 and 96 miles (69 to 154 kilometers) altitude. The harmless by-products will disperse across thousands of miles as they diffuse into the upper atmosphere.

The experiments will take place in a region above the Earth that at first appears to be empty and very quiet. In fact, the Earth's upper atmosphere actually is bustling with activity. Here the solar wind (a fast-moving stream of particles emanating from the Sun), the Sun's magnetic field and Earth's magnetic field and atmosphere come together. Their interactions can create disturbances just above Earth's lower atmosphere.

These disturbances can affect radio, television and satellite communications. By better understanding these interactions in the ionosphere, scientists hope to gain information that will ultimately help improve the reliability of radio and satellite communications.

The specific aim of these experiments is to explore metallic ion layers (regions of electrically charged particles) that exist about 60 miles (100 kilometers) above the Earth and to understand how their interactions with wind in the upper atmosphere create large electric fields and turbulence. The metallic ion layers are formed by material from meteors that have collided with the Earth's upper atmosphere.

Each mission will consist of a one-stage Black Brant V rocket and a two-stage Taurus-Orion rocket. The Black Brant V, which will carry instruments only, will be launched first. The Taurus-Orion, carrying the chemical package, will be launched approximately three minutes later.

The status of the launches can be found by calling the Wallops Flight Facility launch status line at (757) 824-2050 or on the Wallops web page at:

http://www.wff.nasa.gov


Story Source:

The above story is based on materials provided by National Aeronautics And Space Administration. Note: Materials may be edited for content and length.


Cite This Page:

National Aeronautics And Space Administration. "Scientific "Fireworks Display" Set For East Coast In July." ScienceDaily. ScienceDaily, 1 July 1999. <www.sciencedaily.com/releases/1999/07/990701070329.htm>.
National Aeronautics And Space Administration. (1999, July 1). Scientific "Fireworks Display" Set For East Coast In July. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/1999/07/990701070329.htm
National Aeronautics And Space Administration. "Scientific "Fireworks Display" Set For East Coast In July." ScienceDaily. www.sciencedaily.com/releases/1999/07/990701070329.htm (accessed October 25, 2014).

Share This



More Earth & Climate News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

EU Gets Climate Deal, UK PM Gets Knock

EU Gets Climate Deal, UK PM Gets Knock

Reuters - Business Video Online (Oct. 24, 2014) EU leaders achieve a show of unity by striking a compromise deal on carbon emissions. But David Cameron's bid to push back EU budget contributions gets a slap in the face as the European Commission demands an extra 2bn euros. David Pollard reports. Video provided by Reuters
Powered by NewsLook.com
Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Reuters - Innovations Video Online (Oct. 24, 2014) Miniature deep sea animals discovered off the Australian coast almost three decades ago are puzzling scientists, who say the organisms have proved impossible to categorise. Academics at the Natural History of Denmark have appealed to the world scientific community for help, saying that further information on Dendrogramma enigmatica and Dendrogramma discoides could answer key evolutionary questions. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com
Raw: Tornado Rips Roofs in Washington State

Raw: Tornado Rips Roofs in Washington State

AP (Oct. 24, 2014) A rare tornado ripped roofs off buildings, uprooted trees and shattered windows Thursday afternoon in the southwest Washington city of Longview, but there were no reports of injuries. (Oct. 24) Video provided by AP
Powered by NewsLook.com
Fast-Moving Lava Headed For Town On Hawaii's Big Island

Fast-Moving Lava Headed For Town On Hawaii's Big Island

Newsy (Oct. 24, 2014) Lava from the Kilauea volcano on Hawaii's Big Island has accelerated as it travels toward a town called Pahoa. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins