ScienceDaily: Top Technology News

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• Stream of stars in Andromeda satellite galaxy shows cosmic collision
• The Hubble showdown: Starbursts versus monsters
• Air force aircraft returned from Vietnam identified as postwar source of agent orange contamination

Stream of stars in Andromeda satellite galaxy shows cosmic collision Posted: 23 Feb 2014 10:17 AM PST The Andromeda Galaxy is surrounded by a swarm of small satellite galaxies. Researchers have detected a stream of stars in one of the Andromeda Galaxy's outer satellite galaxies, a dwarf galaxy called Andromeda II. This galaxy is very small -- less than one percent of the Milky Way. The movement of the stars tells us that what we are observing is the remnant of a merger between two dwarf galaxies. Mergers between galaxies of such low mass has not been observed before.

The Hubble showdown: Starbursts versus monsters Posted: 23 Feb 2014 08:25 AM PST The dominating figure in the middle of this new Hubble image is a galaxy known as MCG-03-04-014. It belongs to a class of galaxies called luminous infrared galaxies -- galaxies that are incredibly bright in the infrared part of the spectrum.

Air force aircraft returned from Vietnam identified as postwar source of agent orange contamination Posted: 21 Feb 2014 08:40 AM PST From 1971-1982 Air Force reservists, who flew in about 34 dioxin-contaminated aircraft used to spray Agent Orange and returned to the US following discontinuation of the herbicide spraying operations in the Vietnam War, were exposed greater levels of dioxin than previously acknowledged, according to a study. The new evidence is contrary to current position held by Air Force and VA. "These findings are important because they describe a previously unrecognized source of exposure to dioxin that has health significance to those who engaged in the transport work using these aircraft," says the lead investigator, an environmental engineer with many years of experience evaluating environmental exposures in the Air Force.

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