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Some sea slugs sever their own heads, grow whole new bodies

Some sea slugs sever their own heads, grow whole new bodies

Science
March 8 (UPI) -- For at least two species of sea slug, decapitation is no big deal. After purposefully severing its head, a sacoglossan sea slug can regrow its entire body, heart and all. Scientists observed the phenomenon -- detailed Monday in the journal Current Biology -- while studying the development of the marine invertebrates, from eggs to adult sea slugs. Advertisement In the lab, researchers noticed the head of a sacoglossan sea slug moving around without its body. "We were surprised to see the head moving just after autotomy," lead author Sayaka Mitoh, a doctoral candidate at Nara Women's University in Japan, said in a press release. "We thought that it would die soon without a heart and other important organs, but we were surprised again to find that it regenerated the whole b...
Northrop’s ‘life extension’ spacecraft heads to the rescue

Northrop’s ‘life extension’ spacecraft heads to the rescue

Science
Sept. 11 (UPI) -- A second spacecraft designed by Northrop Grumman to extend the life of satellites in orbit is headed toward a rescue some 22,200 miles above Earth. The spacecraft is part of Northrop's new in-orbit services. Analysts and observers predict such services will grow into a multibillion-dollar market over the next 10 years. Advertisement Northrop is the first commercial service to enable private space companies to extend the life of large, expensive satellites past their life expectancy as designed. "Satellite operators have few options when a satellite is aging, and they are all expensive [options]," said Joe Anderson, a vice president with Northrop subsidiary SpaceLogistics based in Dulles, Va. The company's rescue satellite, Mission Extension Vehicle-2, or MEV-2, was laun...
Road to Kentucky Derby heads into Ohio

Road to Kentucky Derby heads into Ohio

Sports
June 26 (UPI) -- The Road to the Kentucky Derby winds through the Cleveland area this weekend with an Ohio Derby lineup that includes last year's juvenile champion. Trainer Chad Brown seeks a fourth straight win in the Just a Game Stakes for fillies and mares on the Belmont Turf and has three of Saturday's seven starters. Advertisement On Saturday at Churchill Downs, the Stephen Foster with Tom's d'Etat and the Fleur de Lis with Midnight Bisou are "Win and You're In" races for the Breeders' Cup Classic and Distaff, respectively. Also on that card is the Bashford Manor for 2-year-olds -- always a race to watch for next year's Derby pointers. On the international front, there's the Irish Derby and Pretty Polly Stakes at the Curragh, the Grand Prix de Saint-Cloud in France, the World Sports ...

New carrier heads to sea for tests amid debate over delays

Technology
The nation's newest aircraft carrier left a Virginia shipyard and returned to sea for more tests Friday, just days after fresh concerns were raised in Washington over when the highly advanced ship will be ready for combat. The USS Gerald R. Ford departed for sea trials in the wake of a public back-and-forth between a congresswoman and U.S. Navy leaders over delays, cost overruns and systems that aren't fully operational. For example, not all of the ship's weapons elevators, which transport missiles and bombs to the flight deck, have been completed. Speaking at a congressional hearing Tuesday, U.S. Rep. Elaine Luria said the Ford should have been deployable in 2018 but may not be ready until 2024. "I just truly don't feel this is a great investment as a taxpayer — $ 13 billion on a ship t...
Pound heads for two-year low as holidays begin

Pound heads for two-year low as holidays begin

Business
The pound is heading for two-year lows against the dollar as markets react to continuing Brexit uncertainty and signs that the UK economy is slowing.The currency fell sharply after data showed slowing sales at UK retailers and economists forecast a contraction in the economy in the second quarter.Against the dollar, the pound fell below $ 1.25 and was close to its lowest level since April 2017.The pound was also at a six-month low against the euro at just above €1.11.With the holiday season getting underway, it means travellers from the UK will getting fewer dollars and euros for their pounds.Sterling has been swayed by uncertainty in the aftermath of the EU referendum, but has been more stable in recent months because of confidence about the UK economy.H...